© Kathryn Mary Photography A switch from milking Holstein cows to Jerseys is providing a Scottish dairy producer with a more stable milk price and a predicted better bottom line, while also

allowing the farm to make improved use of the infrastructure. Colin Murdoch, from Buntonhill Farm, Kilmarnock, was approached by Graham’s Family Dairy after an opening became available to

become one of only 14 Jersey milk producers supplying the processor. At the time, he was milking 170 Holstein cows and supplying Graham’s on a conventional liquid contract. After going

through the figures, and with advice from his nutritionist, Bryn Davies from Advanced Nutrition, he decided to make the switch. See also: Zero grazing cuts concentrate costs by £24k on

Milking 200 Jerseys, housed year-round * Farming 182ha (450 acres) * Two full-time staff including Mr Murdoch, one full-time and one part-time milker  * Averaging 6.5% butterfat and 4.6%

protein and yielding 5,500 litre a cow. * Supplying Graham’s and paid a base price on 5% butterfat, with a bonus for every 0.1% increase in butterfat Holstein cows had been zero-grazed from

2014, but as breeding led to a cow with a bigger stature, the 1980s cubicle sheds were starting to creak as the beds weren’t quite long enough to provide them with optimum comfort. “The

Holstein was also becoming more fragile, and fertility and lameness were issues. I didn’t want them outside grazing because of the climate, yet keeping them on concrete 24/7 in a facility

that was good, but not quite right for them, was not ideal.” THE TRANSITION The Holstein cows were mostly sold privately to farms in Cheshire and North Wales, averaging £1,250 a head, and

just one month later, in October 2019, Mr Murdoch welcomed his first 150 Jersey heifers. These were imported from Denmark, with a further 60 heifers imported since. “We bought the Jerseys

through Owen Daley of Best of Breeds Livestock. He took us out to Denmark where we met with Viking Genetics. The national herd health and quality in Denmark is light years ahead of where we

are. “The cows over there are very uniform and their health status is a lot better. We didn’t want to risk buying-in TB,” he explains. Most of the cows were in-calf to sexed semen and cost

£1,600 a head, on average. “Importing the Jerseys did cost quite a bit of money, but we bought heifers at their peak value with the hope to get at least four to five lactations out of them,”

he says. INFRASTRUCTURE CHANGES Some small tweaks had to be made to the system to accommodate Jerseys. They included: * Lowering the feed barriers * Reducing the cubicle sizes by about 13cm

enabled them increase cubicle numbers from 160 to 200 * Replacing mattresses with pasture mats to optimise cow comfort * Altering in-parlour feeders by making them about 23cm shorter *

Double-chaining any gates due to the inquisitive nature of the breed. NUTRITION The nutrition has also been adapted. Jerseys are fed a total mixed ration (TMR) in the morning, comprising 5kg

of concentrates and 20kg of silage, and 45kg of fresh-weight grass in the afternoon.  They are being fed a slightly higher energy blend compared with the Holsteins – 12.7 MJ of metabolic

energy (ME)  v 12 MJ – with the protein the same at 19%. Although the Jersey feed costs about £60/t more (£275/t v £215/t), the feed rate is almost half at 4.5-5kg/day compared to 9kg/day

for the Holsteins. This is saving £500 in feed an animal over one lactation, with the Holstein costing £1,500 a cow and the Jersey £1,000. As well as being more cost-effective to feed, Mr

Murdoch says the Jerseys are also easier to manage because the whole herd is fed one diet instead of two.  “We used to feed a high- and low-yielding diet to the Holsteins, but now we are

able to feed one TMR throughout the year. We just adjust the amount they are being fed, with freshly calved cows receiving more cake in the parlour and the cows close to drying off get less.

“We do this for simplicity, as well as the fact you can lose too much off the backend of a lactation when you change from a high- to a low-yielding diet.” Zero grazing has remained the

same, with fresh grass introduced in February/March and fed until November. Mr Murdoch says the aim is to achieve about 200 “grazing” days, which would be at least two months longer than if

they were outside grazing.  “We also don’t lose any quality in the grass and the fields are cleaner. Cows also do not lose any condition. It works well for us, although it is machinery

intensive,” he adds. THE FUTURE Mr Murdoch now plans to expand the herd from 200 to about 240 cows, with the aim to be calving 20-30 cows a month all year round to maintain a level milk

profile. The plan is to use genomics to breed replacements and sell surplus in-calf heifers. Although it is still early days, Mr Murdoch is hopeful the Jerseys will be more profitable.

Predictions estimate the margin over purchased feed for the Jerseys to be twice that of the Holsteins, at £1,209 compared with £522, due to the better milk price and lower feed rate. Health

is also improved. “When it comes to lameness out of the whole herd, I have only had to put blocks on three cows, yet in the Holsteins I could be putting on two to three blocks a month.” Mr

Murdoch is positive about his future in dairy and says the arrival of the Jerseys has renewed enthusiasm within the team. “They are a delight to work with. I’m really glad we made the move

when we did. Had we still been on a conventional milk contract we might have been struggling when Covid struck. On our contract now we lost 1p/litre for a couple of months before it went

back up again.”