Showing posts with label NZ. Show all posts
Showing posts with label NZ. Show all posts

March 1, 2016

Farm working Dogs in New Zealand. 5. Further training

By Dr Clive Dalton
 
Casting
This is the wide sweep a dog takes around stock when sent to gather them.  It’s a strong natural instinct in the Border Collie.   When the dog sights its first sheep, it then takes another wider cast so as not to miss any more, and it keeps on casting wider itself. 

Problems arise when dogs don't cast well and run straight at the first sheep they see, or cut in on sheep and split mobs.  A wide cast is especially important if you send a dog away to find sheep that may be out of sight, called "casting blind". 

Some dogs have a favourite side to cast and will "cross the head" to get to it.  To stop this you'll have to go back to the basics of "putting the sides" on the dog.  Do it up against a fence so the dog cannot cross.  For a novice handler, teaching a dog to widen its cast is not easy.  You can end up souring the dog by over-checking it, at the stage of high excitement when it sees sheep to gather.  

Probably the simplest technique is to get the dog on a long cord.  As it moves away from you on the go-right or go-left command, start to add another command to “keep out” getting it to go wider, and use a long stick to direct the dog further out.

Some experts dog trialists teach this by driving the dog in a harness and one trainer (Mills et al, 1964) used a system of ropes around a post to pull the dog to widen its outrun.  Other trainers have used a chariot-like device to steer the dog while giving spoken and then whistle commands.  Another trick is to attach a spare collar around the dog's loin carrying a cord from the neck collar.  At your command to “keep out”, pull the cord and it shifts the dog's bodily direction.

It would not be wise to get involved with these techniques unless you had expert help.  Contact a local dog trainer for some simpler way to solve the problem.

Recasting
This can be hard for some dogs, as it means leaving the sheep they've just captured.  First you have to strengthen the commands to "stop," and then "leave go" the current job.   Then the new command to recast or "go back" is taught. 

It's also useful to teach a body signal as well as the go-back command.  An extended arm or stick is good, as the dog being visually alert can see this at a long distance, and it helps to reinforce the message, especially if you walk in the direction you want the dog to go.

Driving
Some dogs with a strong heading instinct find driving sheep away from you difficult.  The way to overcome this is to teach the dog in a race so that it's hard for the dog to head up each side.  When the dog heads, keep calling it "in behind" until it will work the sheep on short heads itself.  Accompany the dog at the start of the drive and then gradually hang back and let the dog do it alone from your distant directions.

Leading
This is where a dog stays ahead of driven stock, holding them up but not too much.  It simply restrains the leaders without balking the mob.  It learns to hold the mob until the last minute and then backs off.  It's best taught in a race with a big mob moving up to the dog (under pressure from behind) which naturally will want to hold them.

At the appropriate time as the pressure builds up on the dog, give the command to "back off" or "get outside".  A hand signal will help too.   A good dog won't need commands once it has learned the job. 

Shedding
This is the ability of a heading dog to separate off a sheep and prevent it from joining the mob again.  In British dog trials, it has to keep on doing this until a marked group are shed off.  It's a useful trait at lambing time when ewes and lambs may have to be sorted out individually in the paddock.

Note the dog has to do the shedding and not the person!  The TV spectacle of the shepherd running around frothing at the mouth, and the dog standing watching with a smile on its face is not the general idea.

The dog is trained to come through gaps between individual sheep at great speed, indicated by the shepherd's stick to a command of "here" or "here this."

To get the speed into the action, you need a sharp eye dog and the dog on a light cord.  On the command, "here", if the dog is confused, pull it towards you.   You need great control after the shed, as many dogs want to go around and chase the sheep back again.  The dog has to understand that you want that sheep kept separate. 

Jumping, backing and bike riding
Dogs generally love to jump and can be taught this trick from a young age.  Get them to jump on to anything around the place, into their pens, on to boxes, wool bales, bikes, etc, to the command "get up".  Make sure they are strong enough to do it, and give them a hand in the early stages in case they get hurt and are put off.  Reward the dog with plenty of fuss when the task is completed.

Use the same technique to get them to jump on to sheep.  But make sure the sheep are well woolled and tightly packed so the dog doesn't fall off and get stood on.  Only when the dog is competent to run along on sheep, should it be commanded to jump on loose sheep.

On bikes and vehicles make sure dogs are safe and drive slowly until they learn how to balance to stay on.  Make a proper tray on a bike for them to provide grip and protection.

Catching sheep
Trainers disagree strongly on whether dogs should be taught to catch sheep.  Some are concerned it encourages sheep worrying, and can spread through the shepherd's team of dogs.   Other shepherds (as they age) like a dog that will catch sheep, especially at lambing time and at docking.

Remember that dog's teeth can puncture hides and tear muscles, and this costs the industry a fortune each year.  So you need a dog with a "soft mouth" for the job, that holds with its mouth rather than bites.   Huntaways generally have much softer mouths than heading dogs, but the heading dog has the speed and agility to be ideal for catching sheep.

Teaching this task can be tricky so talk to someone who has been successful.  You have to develop the "catch-to-kill" instinct in the dog, and this is done by exciting the dog, then making sure it is checked at the right moment.  This is when YOU have hold of the sheep.

You can easily get things wrong.  The dog will often hold the sheep and under fear of your approach and being reprimanded for biting, will release it just before you grab it! This exercise can repeat itself two or three times, ending in a very punctured and suffering sheep, a confused dog and a crazed shepherd.

Some trainers teach pups to catch or hold things by playing with a piece of rubber or a rag.  Others are against the whole idea.  Some dogs show a natural ability for this job while others should be banned.  It depends on the nature of the beast.  Talk to an experienced handler about this.

Heeling cattle
This is a strong instinct in some dogs such as the Border collie and the blue heeler.  These dogs will bite the heels then the noses of cattle and can cause utter confusion to the beast if not controlled.  Some dogs will even finish the job off by swinging on the beast's tail.

The dog has to be fearless of cattle and have the skill to lie low once the heels are bitten to avoid flying back feet and injury.   The dog has got to have the instinct to do it properly or it doesn't survive.  You cannot teach an unwilling dog to do this.  Your concern is generally to keep the trait under control.

To test the dog’s instinct, try a hiss-hiss sound while moving cattle and see what the dog does.  A keen dog will dive in and heal stock straight away.

Negotiating fences and gates
Conventional fences
These are no problem.  You can get hold of the dog, reassure it and push it through between the wires or through the bars of the gate.  Use a command like "get through" and reward the success.  An arm signal may help to reinforce the command from a distance.

Power fences
These are a disaster for dogs.  Some dogs seem to get an unpleasant sensation through the ground from the fence, long before touching it so get very shy of fences in general.  Manufacturers have generally not faced up to this fact, and make suggestions that dogs can be taught to jump fences.  They can, but pups and old dogs can't jump very high.  The late Neil Rennie suggested power fence companies should design special insulated "bolt holes" for dogs in a fence, but nothing eventuated.

If using power fences, at least be consistent.  For example, don't make the bottom wires (or the middle wires) hot.  The dog will then learn where it is safe to get through.  Powered outriggers make things worse, so try to keep them above dog-crawl level.

You have to be very patient, as many dogs will not get through the fence and will go long distances to get through the gate that they know is safe.  That's fine if you don't have an urgent job for the dog to do through the fence.

The most important fact about dogs getting shocks (which seems inevitable on modern farms) is not to speak to the dog for at least 5-10 seconds after the event.  Then it won't associate YOU with the shock.

Handling a pre-owned dog
With a new dog, the task is to build a new bond to replace the old one.  This could have been quite strong, so be patient.  Dogs with very strong bonds to one owner can be a nuisance at times, especially if someone else needs to work them during an emergency.  The old dog on the farm that will work for anybody is a great asset.  He's usually working his handlers if they only realised it!

The first thing with a new dog is to take it everywhere on a lead and give it plenty of fuss and attention.  This is especially so at feeding time.   Let it off the lead in a confined area first and strengthen the "come here" command.  Start to work it only when you're sure it will stay and come to you.   Keep a short chain on its collar and tie it up when not working. Most keen dogs will work for a new owner after about a week.

The previous owner will tell you the commands the dog responds to.  Apart from a demonstration, vendors may provide a tape recording of whistles.  Don't expect too much from the dog when you try them, as the dog will hear them as close but different sounds to the vendor’s.

But the dog will recognise enough to know what to do, and then you can add your command or whistle to the old one if you want to change anything.  Remember to be patient, especially if the dog has been strongly bonded to the previous owner.  It will be missing its former “pack” of the boss and other dogs.  It now has to try to work out where it fits into a new pack.

Team working
If you start to build up a team of dogs, the key to avoid extra work and disaster is to make sure you have ALL team members under control.  Disaster is assured when you command one dog to work, and the whole team join in and help. 

Remember it's very hard for a keen dog to sit and watch.  The dog's name is its alerting signal, and most top handlers have different whistles for each animal's commands.  The most important one is the "stop" whistle, especially on Monday mornings after the dogs' weekend off!

Regular work with the team and firm kind control is the key to success.  Build the team up slowly and be aware of the social ranking within it.  You are the pack leader and keep it that way.  Be alert to threats and changes within the social order.

Some handlers use dogs to discipline other dogs in the team.  This can be very effective but can also get out of control with severe damage inflicted on the culprit.  The top dog handlers do not recommend it.

Biting people
This is now a big concern.   Biting dogs are a “hazard” under Occupational Safety and Health laws where you have to Identify, Eliminate or Isolate them.  You could be responsible for any damage.  Why do dog's bite people?  Some possible reasons are:

·      The nature of the dog.
·      Over-stimulation or excitement.
·      A bitch protecting her litter.
·      To protect the pack leadership.
·      In fear (eg against vets and Dog Control officers).
·      To protect their territory (eg kennel or run).
·      Confusion or frustration.

Dogs don't like rules that change so be consistent, especially if more than one person is involved.  An example is Dad says one thing and Mum and the kids operate a different set of rules.

When meeting a strange dog, stand still and hold your hand out for it to sniff.  Never grab it by the scruff and pat its head madly.  That's a very dominating thing to do to a dog, as this is where dogs grab each other in fights!  Rub its chest or somewhere low down instead.  Adopt a low posture if you dare risk it.

Aggressive strains of dogs should be culled.  Dogs that are known biters are a concern and veterinarians say they rarely can be cured.  It's too big a risk these days to keep them.  Muzzling dogs all the time is not a very practical solution, and one day you’ll forget but the dog won’t.

Biting sheep
The concern here is that biting leads to worrying.  Working a dog in a muzzle is not practical.  Some veterinarians will advise removing the canine teeth in valuable dogs, but the dog can still do damage to stock with the remaining teeth.  A much more humane method these days is the electronic-training collar when properly used.

If you have a savage mature dog that bites consistently, the solution is often euthanasia.  The problem could be genetic and you don’t what those genes in the strain or breed.   The time to check this problem is at the puppy stage before the habit has developed.  Talk to your vet about the problem.

Sheep worrying
Dogs are dogs, and any of them are capable of worrying sheep.  The dog's diet has nothing to do with this sin of sins.  Tying dogs up when not working is a basic rule that will prevent dogs taking off.  A pair of dogs can be a lethal combination - and can be very cunning. 

If a dog has disappeared, then be suspicious.  They can travel long distances in a short time to kill on a neighbour's property.  Research shows that the weather and stage of the moon can be implicated.  They can come home free from any evidence of slaughter.

The electronic collar is about the only thing you can try before euthanasia, provided you catch them red-mouthed!  Once a dog has worried a sheep and the vice grows, then euthanasia should be next on the list. 

More on killer dogs
It's a heartbreak when a top dog you have trusted for years is accused of killing sheep, or worse still, is caught in the act.  The following information is based on work done at the Murdoch University in Perth, Western Australia by Dr Garth Jennens.

Dogs are dogs and it's a myth to believe like so many people do, that their little pet dog could not possibly go out and kill. Any dog is capable of killing sheep, and the fact that it's in the garden when the owners are at home, or is back on the doorstep sleeping in the morning is no proof of innocence.  Attacks can happen any time but 80% are between 5am and 7am.  You cannot breed this killing instinct out of the species.  If you did they wouldn't be dogs!

The image of killer dogs going around in packs is a myth.  Ninety percent of dogs that kill sheep are pets, working on their own or with another dog and they come in all sizes and breeds.

You can't predict which dogs will turn out to be killers.   They can be pets for years or your top working dogs, and then all of a sudden something triggers off a desire to be a dog and go out and hunt to kill.  One common factor to all sheep killers though is that they are wanderers.  So if you have wandering dogs near stock, you can very easily have a killing problem.  Wandering dogs are the key.

Most dogs that kill sheep don't have a mark on them.  This is because after their bit of fun, they regularly go and have a swim and cool off.  Check the collar (if they have one - most don't), bloodstains can be seen in the leather.

Killer dogs have a set pattern.  They enter and leave properties by a set route, and have usually been around the area that they kill in for a few visits before they get to work.  These dogs are predictable and stick to their pattern.   They like to travel near water or up valleys where scent is funneled down to them.

The cold of winter and the heat of summer are the off season for sheep killing.  It's more comfortable at home!  But the cool of the Autumn or the freshness of Spring get them going.  They like the damp spell after rain and the full moon for their sport.

You can predict the breed and size of dog from the kill pattern such as where the sheep is attacked.  Experienced dogs will actually kill a few sheep and not maim many.  Learners will maim a great number but not be able to kill any.   Dogs have got to learn to kill sheep - and they do some awful damage while they are learning.  If it's a food kill, only one sheep will be killed.  Generally it’s all a big game of chase and catch for the dog or dogs.

A dangerous combination is a large and small dog, eg a heading dog and a terrier.  The big dog heads and catches and the little dog goes in for the kill.  They can be very cunning and quick.  Many of them can disappear and kill a sheep or two in no time, and nobody notices them disappear.

The general conclusion is that a dog that has killed stock will repeat the act and euthanasia is the kindest solution for the dog.

Bolting
Here, in the middle of a job, the dog decides it has had enough for the day, and goes home early - without asking your permission!  The day ends with the dog waiting for you on the back door step, stretched on its back urinating as your approach composing your speech, begging for forgiveness before the inevitable beating.  It can be very frustrating to have dogs that bolt.

What can you do?
·      Try to find out the cause of the problem.
·      Re-establish the bond with the dog, especially if it is shy.
·      Let it trail a light cord or fishing line with a stick on the end, that you can stand on if it takes off. This cord will likely get entangled in a fence on the way home.
·      If the problem is persistent, then dispose of the dog.  It's too big a threat to your blood pressure.

Car sickness
Being sick and defaecating in moving vehicles can be a problem for some dogs - and their owners.  The solution is to get pups used to travel for short distances, stopping at the first sign of stress.  Excess salivating and whining are signs of trouble.  Reassure pups as much as possible - and drive slowly!  Then increase the distances making sure there is plenty of cool air in the vehicle.  Consult your vet as some good drugs are now available.

Jumping up, sniffing people and leg mounting
It's very annoying for strangers, and embarrassing for you the owner, to have your dog jump up on guests, sniff their crutch (both back and front) and then when they sit down, mount their leg and start thrusting.  It's not the sort of welcome most of us like and it's often very hard to get a determined dog off!  Large dogs are crutch sniffers and small ones foot mounters.

The problem develops most often with male dogs.  The secret is to break the habit as soon as a young dog starts, with a reprimand that it will remember.  It’s very hard to break these habits in old dogs.

Scent rubbing
This is a nice name for when a dog rolls in any dirt or faeces, afterbirths or a rotting carcass it can find.  Dogs love it, coating their heads, cheeks, shoulders, and then when they've had enough they depart the scene, often scratching the ground with their hind feet to leave a signature.  They seem to see it as a great experience which they are keen to share with their owner.

Check it in the pup or young dog, and not later on.  It's certainly too late when you find the dog in the front of your vehicle, smiling and delighted with it's new-found aroma, hoping you are too.

Discipline
This is a vitally important subject as there is no way you can train a dog without it!  Dogs are pack animals and discipline is part of the bond building that guarantees survival.  The important question is - how should discipline be given?

Here are some key points from experienced handlers:
·      Discipline should fit the crime.
·      It must be instantaneous.  Research has shown that it must be within 5 seconds of the crime.
·      A loud voice or stern tone can be effective, so keep your normal commands as quiet as possible.
·      Beating dogs is not a solution.  It may do you some good but does little for the dog.
·      Before the electronic collar was invented, discipline at a distance was impossible.  Throwing stones was an option, and getting the pack to attack the sinner can lead to injury, but at least the reprimand was not associated with the boss.
·      One handler disciplines the dog by calling it back, holding it down in a submissive pose, which he says cools him down too, and he has time to think what HE did wrong to get the dog into the problem situation.  That's the comment of a very wise person!
·      After a reprimand, make sure you rebuild the bond with the dog.

April 23, 2014

New Zealand agricultural history. No 22. Importing exotic sheep breeds


Animal Enterprises (AE) importations 1986
Finn, Texel, East Friesian, Gotland Pelt, German White Headed Marsh
 Stupid quarantine fencing regulations by MAF
Arguments with MAF over release dates from quarantine

 By Dr Clive Dalton

 Information obtained from paper presented by Dr Jock Allison to NZ Institute of Primary Industry Management, December 2006.
Fencing stupidity
MAF regulations said there was to be a 2m high deer fence on the outside and a conventional boundary fence on the inside both 2m apart.  So MAF wanted to heighten the sheep boundary to deer height, and then add another conventional boundary fence on the inside. 

The cheaper option for AE ($5/m) was to leave the existing boundary and build a new deer fence inside that. Jock asked the bureaucrats if they thought there was any difference to an escaping sheep or one breaking in, if it met a ‘high-low’ fence combination compared to a ‘low-high’ one?

The Palmerston North Regional Veterinary Officer (RVO) David Lorne said he couldn’t go against the decisions of his staff and the Chief Veterinary Officer (CVO) in Wellington Peter O’Hara, as it would be ‘bad for morale’, which clearly was more important than the several hundred thousand dollars extra it was costing AE in fencing.   

Jock took his case to Director General Malcolm Cameron, a man not know for snap decisions, and even the Minister of Agriculture, but to no avail. The importance of staff morale reigned supreme over biosecurity and client requirements.

AE went on to have almost 20,000 sheep in quarantine as their major multiplication programme kicked in for sheep sales in New Zealand and Australia.  Jock said that common sense prevailed in the last two years of the programme, thanks to MAF Head Office vet Jim Edwards assuming responsibility for protocols.

Arguments with MAF over release dates
·      The Lamb XL Board was of the view that the more exotic breed animals which were generated, then the more money they would make assuming that it would be as easy to sell 5000 Texels for the same price as it would be to sell 1000, i.e. straight-lining the price irrespective of the numbers for sale. It was Jock’s opinion that the generation of very large numbers for sale would depress prices, which may not result in more money being made. 

·      The multiplication programmes of the imported sheep continued unabated, and at the end of the quarantine period some 20,000 animals (including all of the recipient ewes) were held in secondary quarantines. The project lost in excess of $10 million (due to poor demand), but Jock declares that this was the largest 'public-good' research programme ever undertaken on behalf of the New Zealand farmers. The trouble was – nobody saw the loss in this light.

·      Jock is adamant that the financial loss would have most likely been far more, if the release date had been a year after the MAF exotic sheep programme, as was decreed in the initial importation technical conditions for both programmes (see below)

Release Dates  
·      The release date of animals derived from the MAF 1985 importation of embryos was initially decreed to be 5 years from the transplanting of the first imported embryos, i.e. March 1990. Lamb XL was programmed to release their animals in February 1991, i.e. one breeding season after the MAF importation. The long quarantine was required because of Scrapie. 

·      In 1986, MAFTech was born and all advice from then on was provided on a ‘user-pays’ basis, so significant revenue was expected from the sale of rams and ewes from their second importation under Sheepac (See other blogs). 

·      Funding of the quarantine expenses for MAFTech continued to come from the public purse as was all the importation costs involved, unlike LambXL which was funded totally commercially.

·      Significantly the Lamb XL importation early in 1986 included sheep from about 2/3rds of the flocks from which MAF had purchased ewes and rams for their embryo recovery programme late in 1984. So LambXL with their continuing quarantine would have large numbers of animals 6 to 9 years of age being observed for the unlikely appearance of scrapie, while MAF’s animals derived from the same flocks would be released. 

·      Jock asked what would happen if scrapie turned up in LambXL’s older sheep? Clearly this situation didn’t make sense as logically both populations were the same from an animal health point of view, and simultaneous release at a specified time should have been allowed. 

·      Obviously MAFTech was not interested in the release at the same time of the LambXL animals, as they saw their expected revenue from Sheepac being diminished. AE argued that a simultaneous release date was technically sound, and it was in the sheep industry’s interest to have this situation. 

·      The logic was inescapable, and Jock presented a comprehensive case to the MSQAC about the situation, and MAFTech at a meeting strenuously disputed that they had some basis to justify early release. Jock said they had no technical basis for this, and after months of deliberation the MSQAC came to an interesting decision. 
Dr Peter O'Hara.  Photo: Words and Pictures
·      Instead of bringing the LambXL release forward, Peter O’Hara and Bruce Koller instructed MAFTech to keep their sheep in quarantine for a further 8 months with release in November 2000, with the LambXL release allowed at the same time. This was a huge boost to Lamb XL and caused significant increased expenditure of taxpayers dollars by MAFTech to maintain their sheep in quarantine waiting another 12 months for their expected income, as they had to wait another breeding season for their release. 

·      The LambXL sheep were sold to a wide range of clients all over New Zealand and some to Australia but with the company ending up in the red big time.

August 26, 2009

Agricultural history: New Zealand's 1948 milking revolution

Agricultural history. Dr W. E Petersen's 1948 visit to New Zealand.

By Dr Clive Dalton


Pan Am has landed


In1948, a quiet revolution hit New Zealand dairy farming. It arrived with the landing of a Pan American World Airways airliner at Auckland Airport, carrying Dr W.E. and Mrs Peterson from Minnesota University in the USA. New Zealand cows and dairy farming were never the same again.

Before 1948
The milking machine became popular in New Zealand in the early 1900s and caused another quiet revolution, mainly because it freed people from the time-consuming chore of hand milking. The result was increased herd size (to even up over 100), and increased farm income and more export income for the nation.

From hand to machine
However, much of the old hand-milking attitudes were just transferred from the three-legged stool to the milking machine, as 'the mechanical milker' wasn't trusted by many dairy farmers to get all the milk out of the cow. After the machine came off, the standard routine was to 'strip' the cow by hand to get the last drop of milk from the udder. Remember that in these times, the entire family was expected to turn out to milk the cows.

Why strip?
Stripping was done for two main reasons. The last milk from the udder always had the highest fat content, and in those days farmers were paid for 'pounds of butter fat' produced. So the strippings could help boost the income - at least that was the firm belief.

Also, if you left any residual milk in the udder, it was an ideal medium for bacteria to multiply and cause mastitis, and in the days before antibiotics, this disease was difficult to cure with old remedies.

Retired dairy engineer Tom Clancy told me that on the family farm in the 1950s, he had to milk with his mother and father and they all kept to their own bails in the walkthrough shed. Tom said his mother set that standards, both before and after they got a milking machine, and tried to keep an eagle eye on them. She took ages to strip her cows after the machine came off, and expected them to do the same. But Tom and his father managed to do a 'quick strip' when she wasn't looking to get their cows out and finish milking.

Double stripping
Many Herd Testers from the 1950s in their circuits around farms weighing and testing the milk from each cow for official recording told me that they often tested on farms where 'double stripping' was carried out. Here you stripped the cow once after the machines came off, and then waited a while and stripped again before releasing her from the bail. The Herd Testers hated these farms (and their owners who inevitably were tight with money) as double stripping extended milking by hours.

A long-retired farmer still has vivid memories of how things changed on their family farm. As a small boy helping to milk their very large herd for the times of 120 cows, he remembers his father changing the milking routine overnight. He wasn't sure whether his father went to a Petersen meeting, but the message and change was rampant in the district. It was massaging udders for the magic 30 seconds after they were washed that he remembers most. Many herds in his area he said were 10-15 cows from which the family could make a living.

The Petersen revolution

What happened in 1948 is documented in a small book of 79 pages with the title of 'Dairy Cow Wisdom - What Dr Petersen Told N.Z.Dairy Farmers. Despite being widely distributed at the time, the book is now very hard to find.

It was published by the "N.Z. Dairy Exporter" and printed by Hutcheson, Bowman & Stewart, 15-19 Tory Street, Wellington with the foreword is by C.W. Burnard, Editor 'Dairy Exporter'.

Introductory paragraph
This states - 'This book has been produced because many farmers at different meetings addressed by Dr Petersen asked whether it would be possible to have all the questions he was asked throughout his New Zealand tour made easily available in one publication. It has been produced also because those of us who have been to a number of his meetings know that Dr Petersen had the answers to all the farmers' milking problems'.

Mr Burnard pays tribute to Mr Arthur Ward (pictured on cover with Dr Petersen) who was Director of Herd Improvement for the NZ Dairy Board and who made the visit possible. Peterson had taken a great interest in Ward's work and clearly they had a lot of contact before the visit.

Burnard also says in his introduction that the information Petersen brought with him about 'the elevated milking bail' would have lasting effects on New Zealand dairying. He certainly was right about that.

Petersen's tour
Petersen toured the whole of New Zealand to packed audiences wherever he went. A picture caption in the book shows such a farmers' welcome and states:

'At Ruatoki, Dr Petersen was given a royal welcome by the Maori farmers of the district, who turned out in large numbers to learn more about better milking practice'.



Psychology of the dairy cow

The first chapter in the book is called "The psychology of the dairy cow' and the lead in paragraph states:

'On his arrival in New Zealand, Dr Petersen was asked to deliver a broadcast over all the national stations. Little or no time was available for preparation, so the address which follows was really an impromptu talk to farmers. It was given on Saturday October 9, and while some ground it covers was given in his other addresses to farmers, it contains many worthwhile points'.

In this talk Dr Petersen makes points which are well accepted today, but were clearly revolutionary at the time. Here's two of them:

'I think farmers and people in general have not recognised the cow as an individual and how she behaves'.

'The way she performs in the making of milk is dependent not only on the feed she gets, but also on the way she is handled'.

Key message points
The crux of the Petersen message in this introductory chapter of the book is stated in these words:
  • Number 1. The cow must be relaxed and must want to be milked or we won't get all the milk out of her.
  • Number 2. This a relatively new one: that she should be stimulated by a proper massage of the udder and teats to let down her milk approximately one minute before the milking is to begin.
  • Number 3. That the milking machine should be operated properly and that the vacuum levels should be watched carefully or injury may result to the cow.
  • Number 4. That all the milk can be gotten out of a cow by proper manipulation of the teat cups.
  • Number 5. The mechanical milker is removed as soon as the milk ceases to flow.

This is summarised again in a little box on page 20 in the Chapter on 'Modern Milking Methods'. Here they are:
  1. Avoid anything that will excite or disturb the cow.
  2. Stimulate the let-down of milk about a minute before milking begins.
  3. Operate the machine according to the manufacturer's instructions.
  4. Don't strip by hand.
  5. Take the teat cups off the cow the moment milk ceases to flow.

Impact on farms
I have spoken to many people who were milking cows on the family farm at the time of the Petersen visit, and despite their advancing years, they still have vivid memories of the lecture attended and the 'take-home' message.

The positive result was to banish leg ropes, udder cloths and stripping for ever from the cowshed. The less enthusiastic took a few more years to accept the message - and changed in the end because or neighbour pressure. They didn't want to be the 'talk of the district' and be a farm where nobody wanted to work for them.

Some old farmers even remember the confrontations they had with their fathers (and mothers) who were not keen to leap into overnight changes encouraged by someone from America! There were even threats by the young ones to leave home if the Petersen changes were not made.

Ruakura Research Station
Dr Petersen's message fell on very fertile ground in New Zealand as Dr C.P. McMeekan was in control of dairy research at the Ruakura Animal Research Station which was formed in 1939. Dr W.G.(Watty) Whittlestone was the main researcher on milking along with physicist Doug Phillips who joined the team in 1947. Below is a famous photo of Petersen and Whittlestone meeting.


This Ruakura team drove the development of the revolutionary Ruakura Milking Machine, and it was into this environment of researching how a milking machine really worked that Petersen's message was promoted.

The Ruakura Milker is now a museum piece. Thousands sold around the world


Farmers were told about what was inside the cow's udder and the hormonal control of milk 'letdown' starting off in the cow's brain. Then they could appreciate what was going on outside the cow when she came into the dairy for milking.

Whittlestone and Phillips were starting to introduce this message to farmers as part of their early research findings, but they had not got involved in its wide extension In any case, spreading the good news was the work of the Advisory Department of the Ministry of Agriculture and Fisheries at the time. Petersen's visit was clearly an almighty boost to Ruakura's work.

There are many photos in the book of Dr Petersen viewing cows at Ruakura, and being photographed with scientific and farm staff. This picture below is a classic example of men who made a massive contribution to agriculture in New Zealand.


Meeting of great minds
There was a wonderful co-incidence reported and photographed in the book. One of the world's most influential geneticists, Dr J.L. Lush from Iowa State College was in the New Zealand at the same time as Dr Petersen - and they met at Ruakura. See picture below.



Lush wrote the 'bible' for students of animal breeding and genetics, and the principles outlined in his book are still relevant today.


All of us who were students of animal breeding treasured this book in its familiar green cover - 'Animal Breeding Plans', Iowa State College Press, Ames, Iowa, first edition 1937, third printing 1949.






The elevated milking bail

This is another fascinating chapter as it must have had a major influence on milking developments in New Zealand. The introduction reads:

'This article gives information about the elevated milking bail system now being introduced in America. It should be emphasised that in New Zealand milking sheds must comply with regulations laid down by the Dairy Division. Moreover, as some adaptation of the American system will be needed in this country, farmers should be warned against adopting the system till some authoritative trials have been made here'.

The 'official warning' tells you a lot, as MAF must have been suspicious of farmers coming up with innovative ideas to first get cows up off ground level to save the agony of back bending, and then to squeeze them up together for milking. This is what drove the invention of the Herringbone in the 1950s..

Questions and answers
There are 24 pages of the 191 detailed questions and answers that arose from Dr Petersen's travels around New Zealand. This must have been a major job for the Dairy Exporter's journalists who collected them and the editor who collated them. Somebody from the Dairy Exporter staff must have covered all the meetings.

Then these questions and answers are all indexed in the back of the book totally 296 cross-referenced entries. This would all have been done by hand- no automatic computer indexing by word processing packages in 1945.