SPECIALISTS IN CUSTOMISABLE FEED SOLUTIONS

care breed that can handle high and low rainfall regions, and the feed shortages that can occur in both regions. They are very good foragers and pasture to milk converters. He believes Ayrshires perform better during lean times and tend to hold their condition.

“We have cows producing over 500kg MS and a few years ago a heifer produced 500kg MS and still got in calf. So I feel we’re breeding the right way,” he says.

“I like their colouration and their temperament,” Delwyn says.

“They’re very quiet, contented animals. There’s still a perception that Ayrshires are bad tempered, but people who milk in our shed comment on how quiet they are.”

Stuart bought into the herd in the late 1980s and they milked 230 cows and steadily increased numbers as further land was acquired.

As the herd increased in size, the old 16-a-side herringbone shed struggled to keep up. By the time they were milking 320 cows it was taking three to

Continued page 12 three-and-a-half hours to milk.

“We were spending most of our day milking and knew that we either had to reduce the herd size, or build a new cowshed. The herd couldn’t fit into the yard and we needed to milk two rows before we could shut the yard gate. So we made the decision to build a 44-bail rotary,” Stuart says.

“The first season was a little tough because we had to train the herd to the new shed. But we went from needing two or three of us to milk 320 cows, to one or one-and-half of us milking 380 cows in an hour.”

Traditionally the herd has produced 120,000kg milk solids on the System 2-3 farm. The herd averages 480-520kg in weight and last year averaged 417kg MS per cow for a total of 140,000kg MS.

This year the herd is on track to produce close to 150,000kg MS milking 20 fewer cows and rearing 180 calves on vat milk. Stuart believes this is due the herd being better fed. He says that by feeding fewer cows and feeding them better, you will at least achieve the same production, but usually more.

“I can only remember one year like this one. This summer has been warm and we’ve been getting rain which gave us grass all the way through. When I first started here the trend was to have three dry years and one really good year,” he says.

“It then changed to three good years and one really dry year. Recently it’s changed again, where you know that a dry spell’s coming, but you don’t know when or how long it’ll last.” grass grew right through and we didn’t feed any silage over summer. I can’t remember that ever happening,” Stuart says.

They own all the equipment required to make their 600 bales of wrapped silage and 350 bales of hay, negating the need to use a contractor.

“We usually plant one or two paddocks of turnips in preparation for the regular dry period. This year the forecast was for a dry summer, so we planted 5ha. We didn’t really need them, so held off feeding them for as long as possible. But they did get us through the February hot spell,” he says.

“During hot summer days the cows stand in the shade of the trees instead of eating. They’re given a good feed of turnips first thing in the morning and they can then wander off to the trees. We’ve trialled green feed maize but cutting maize requires more work than break-feeding turnips.”

Two years ago an in-shed feed system was installed; it increased production by 17%. They also dispense zinc and other minerals to the herd through it.

The cows are fed 3kg per day of an Agrifeeds blend of PKE, DDG through the in-shed feed system. During spring some biscuit cereal is used for added energy and during summer some tapioca is added to the mix.

Calving starts around July 10 and finishes around September 20. This year calving was brought forward to utilise the winter grass.

“The idea is to get them calved and we always have silage on hand to get them over any feed gap. Most of the herd has calved when the grass comes,” Stuart says.

About 80 replacement calves, 80-100 beef bull calves and 10-15 beef heifer calves are raised. The remaining beef heifer calves are sold to a beef rearer.

“The beef calves diversify the operation and help with cash flow. I like the fact that I can see them from the day they’re born until they’re sent to the processors two-and-a-half years later. It’s very satisfying seeing a line of well-grown animals at the end of all the work,” says.

No nitrogen is used on the farm. Because of the farm’s coastal situation it’s an “early farm” and spring grass begins growing 10 days before it does just across the road.

“I figure that if the grass is going to grow, then it will. If not, we have plenty of hay and silage on hand. This year the

“Raising beef calves mean that we don’t have all our eggs in one basket and that income certainly helps out when the payout is down. We sell some animals during winter to help with cash flow.”

As soon as a cow has calved it goes onto fresh grass. The calves are collected every afternoon.

“I rear the calves and the Ayrshire calves are very robust. I have my favourites and they have their pet names,” Delwyn says.

“We feed colostrum until it runs out before using vat milk and milk powder. The milk powder is mostly used in the big calfateria for the beef calves.

“We recently bought a milk wagon, which eliminates the chore of lugging heavy buckets of milk. It’s great, you just throw the milk powder in, flick the switch and it mixes it for you.”

The calves are fed hay and meal from day one.

The new shed enables the calves to move in and out of the shed onto the pasture. They can be shut in at night or during inclement weather. All of the calves can be housed in the two sheds.

“The new calf shed is the best thing we’ve ever built. It has better airflow and bigger pens so the calves can spread out. We haven’t had any sickness issues since we’ve been using the new shed,” Delwyn says.

“The calves are usually weaned when they’re around 10-12 weeks old, but I tend to go more by their look than their weight. When I have to fill their meal troughs up daily, I know they’re heading in the right direction.”

Mating begins between October 1 and 5, and heifer mating begins five days before that. Mating usually lasts until the middle of December but this year it was

Continued page 14 extended to just before Christmas.

Spring’s inclement weather made mating this season tough, so the herd AI was extended for six weeks before running Hereford bulls for four weeks, and then tailing with short gestation Kiwi cross AI.

“Our in-calf rate is usually been around 88%, but this year it was down to 83-84%, which I think was mostly due to the poor spring. The first three weeks of mating were slow, but they came right after that,” Stuart says.

“This year there’ve been many tales of poor in-calf rates. I think we’re probably about average, and considering the spring conditions, I’m pretty comfortable where it is. We didn’t intervene with CIDRs, we just tried to feed them better. I think a great deal of cow fertility comes down to feeding.”

This year AI was used on 22 of the best heifers and purebred low-birthweight Hereford bulls were used over the remainder.

They have been concentrating on selecting bulls for their production BVs. The bulls must have sound conformation and a good temperament. Stuart primarily uses Semayr’s (Ayrshire New Zealand’s breeding arm) top bulls and Finnish genetics as an outcross.

Stuart is Ayrshire New Zealand’s board director and is on the national Semayr committee. Semayr focusses on providing bulls that aren’t readily available to NZ Ayrshire farmers. Semayr is aligned with LIC and uses science to pick, prove and progeny test bulls.

“We’ve been utilising genomic testing for the last two years and it’s been an interesting process. For example, we tested three ET brothers that you couldn’t visually tell apart. We only chose one because the other two were so genetically different. So rather than proving all three, we only needed to prove one,” he says.

The NZ Ayrshire’s smaller genetic pool does limit choice, and it’s one reason Semayr also imports Scandinavian genetics. It’s an outcross from a very good Ayrshire population, where genomics and ET have been utilised for a number of years.

Ayrshire breed development has come a long way in recent years. This was dramatically illustrated to Stuart when he used two 20-year-old AI straws that he’d stored in the bank.

“We ended up with a heifer calf from one of my own bulls that’d been in the catalogue. I can remember looking at it and thinking that I couldn’t remember his offspring looking that poor.

“It really demonstrated how far Ayrshire genetics have come over the last 20 years. It just didn’t perform compared to modern genetics. We used to do 250300kg MS per cow and now we’re doing over 400kgs MS.”

He says that there is a future for the

Ayrshire in the NZ dairy herd and he would like to see more farmers using Ayrshire sires.

“Using Ayrshires as a three-way cross is an area where the breed would really shine. It would be an alternative to using Friesians and Jerseys to gain hybrid vigour and breed a hardy cow.”

They say dairy farming is a tie, and you’ve got to enjoy the life.

“You work hard, but once you get through that period and the weather’s right, I can go fishing.

“I’ve spent 18 years trying to catch a marlin and this year it happened. My Ayrshire NZ work also gets me off the farm,” Stuart says.

He would like to keep working on the farm as long as possible. His father was still going to the runoff to shift cattle when he was in his early eighties.

Delwyn also enjoys the lifestyle and feels that the farm was a great place to raise kids.

“They were brought up knowing that they had to help out when needed, which imparted a good work ethic. I love my garden and it’s good therapy. We’d both like to stay on the farm as long as we’re physically able to,” Delwyn says.

The cows are fed 3kg per day of an Agrifeeds blend of PKE, DDG through the inshed feed system along with zinc and other minerals. During spring some biscuit cereal is for added energy and during summer some tapioca is added to the mix.

“I have my garden here and we‘re close to the coast for Stuart’s fishing, everything we want is here. We’d just dial back the milkings and help Scott out when needed.” n