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Research in the USA

Research in the USA
By Jessica Charlton 11 months ago

Rosendale Dairy

RESEARCH IN THE USAOn the first day of the trip we headed to Pickett, Wisconsin to visit Rosendale Dairy. Rosendale Dairy is an intensive dairy farm, consisting of nearly 9,000 herd of cattle. They have two 80-point rotary parlours that run side by side, each running for 23 hours per day milking on average 600 cows per hour. The herd is split into sub herds and all of the first and second lactation cows are separate from the main herd. We had a fantastic tour of the farm

and had a great discussion with the herd manager on his main focuses and cow management. The farm employed around 90 members of staff. The unit hosts more than 10,000 visitors per year and prides itself on its openness and willingness to educate the public.

Take home point: Staff management was really at the heart of the whole business, they invested a lot of time, money and effort into developing their staff. For such a large operation the staff turnover was very low. Although milk price is low, they are driving for efficiency but they were unwilling to compromise on staff welfare.

Calf Source

The calf source unit is the main rearing unit, it has space to house over 12,000 calves under six months old. It has 4,500 individually housed calf pens and span over 75 rows. The calves arrive from between 24hours-7days old. The pre-weaned calves are fed a combination of pasteurised whole milk and milk replacer balancer with adlib access to water and grain. The unit usually runs on a mortality rate of less than 1%. The calves are weaned between 7-8 weeks old and are then moved into purpose built weaned calf shed with temperature-controlled gale breakers. The calves are then grouped into batches of 10 and fed ad-lib grain 20% and hay/alfalfa hay. At four and a half months olds the calves are moved onto a TMR and small training cubicles.

Take home point: having purpose built post weaned heifer pens ensured an easy transition from milk to grain while reducing labour and increasing health and productivity.

Highlight- meeting Martha- 3 x Champion at the World Dairy Expo

Genomic Selection for healthier calves?-ItsVisit to ST genetics facility - Fond du Lac, Wis Here!-Dr Weigel

Take home points:

  • CLARIFIDE® Plus for Holsteins can genetically improve calf

    health and survival with three calf wellness traits: calf livability,

    respiratory disease and scours

  • The calf wellness trait information can help to obtain the full

    lifetime value of healthier calves to increase profitability and

    impact all six financial drivers impacting net farm income

  • With more and more herds in the UK and US using genomic

    testing it makes sense that farmers should have the ability to

    make genetic selection for healthier Holstein calves


Visit to ST genetics facility - Fond du Lac, Wis

During the visit to ST genetics we explored the history and advancement in sexing semen. There are a large number of herds in the US using sexed semen in far larger quantities than ever before. This is due to a huge  advancement in the success of sexed semen and discussed the latest in genomic testing and sexing technologies. Many farmers are now breeding their heifers and 1st The semen is collected twice per week and there are 60-80 bulls being sampled at any one time.calvers to sexed semen, with the rest of the herd going to

beef, this ensures the farmer has sufficient heifers while gaining a better income through the sales of the beef x calves. We were also lucky enough to have a tour around their stud barn where there were 120 of some of the world’s finest bulls, we also saw the collection facility, lab and distribution centre.



Vir-Clar Farms, Fond do Lac, Wisconsin

Research in the USAExceptional calf care protocols and cleanliness were key to calf management success on this 2,000 cow dairy herd. We had to the opportunity to discuss the protocols with the calf manager Katie Grinshead, she discussed their approach to getting calves off to the best possible start. Some of the highlights included their excellent maternity pen management, newborn protocol, sanitation practices and calf nutrition.

On Farm demonstration: Dehorning calves with caustic paste.

Seminar Highlights

The milk fed calf, social housing and welfare - Marina Von Kerserligk.

Marina’s talk was extremely interesting as she outlined the research looking at calf behaviours associated with milk hunger and correlated perceptions of animal welfare. She also discussed the negative effect individual housing has on the cognitive development of dairy calves and how group or pair housing increased DLWG and starter intakes.

Advances in colostrum management - Dr. Sandra Gooden

Dr Godden discussed the key aspects of a successful colostrum management programme and recent advances in feeding clean colostrum and the importance of farm level monitoring.

Take Home messages:

  • Clean/pasturised colostrum can improve the calves ability to

    absorb more IgGs

  • Monitoring is the key to success

Seminar HighlightsCalf barns designed for calf health - Ken Nordlund

Ken discussed the fact that calf barns can equal calf hutches

in the reduced risk for respiratory and enteric disease, but also

provide improved working conditions for caregivers.

Key points:

  • Use positive pressure tube ventilation systems to supplement

    natural ventilation

  • Drainage below bedding should be considered
  • Consider all in all out grouping systems
  • Avoid cold stress by using deep straw
  • Good drainage

Jessica CharltonJessica Charlton

Calf Specialist – Shropshire, Cheshire, Staffordshire

m: 07990 584740

e: jess.charlton@wynnstay.co.uk

Posted in: Dairy Farming