CROSSBREEDING WITH BROWN SWISS IN THE USA - ON-FARM EXPERIENCES DAN GILBERT PRESIDENT NEW GENERATION GENETICS DAN GILBERT PRESIDENT NEW GENERATION GENETICS
CROSSBREEDING WITH BROWN SWISS OVERVIEW Previous Study Survey of Dairymen currently crossbreeding Results for multiple traits Perceived strengths and weaknesses of different breeds Detailed results of a large herd using multiple breeds Discussion
BROWN SWISS CROSSBREEDING IMPROVES PRODUCTION!
BROWN SWISS – MORE PRODUCTION!* *Source.. Penn State University and University of Minnesota
BROWN SWISS IMPROVE OVER TIME!
SURVEY SAYS..! Milk? Fat? SCS? Vet? Poor? Protein? Fertility? Salvage? Temper? Hooves? 10 Herds milking 3500 cows Herd size 100 to 1250 Jersey, BS, Red breeds, Holsteins Ranked breeds for various traits Opinions
SURVEY RESULTS Average ranking on 6 points scale (6 being best) HolsteinBS xJersey xRed x Milk Fat (kgs) Protein (kgs) SCS (1,000) Fertility Salvage Value Vet Cost Hoof health/trimming
DUTCHLAND DAIRY, IOWA Dutchland Dairy 1250 cows Holstein Hol x Hojo BS x Hojo Jersey x HoJo Jersey x Holstein Red x Holstein Red x Hojo Milk12,44612,11211,70711,10211,60311,96110,890 Fat (kgs) Protein (kgs) SCS (1,000) Days Open Service per conception
OTHER FINDINGS Fat and Protein kg’s are the most important selection criteria Longevity (more lactations) was close 2 nd Fertility and udders were tied for a close 3 rd on criteria Genomic bull usage ranged from 10% to 95% and averaged 55% Price of semen while important was not as high as the points above. Was more important in large herds as they buy in volume.
BS CROSS EXAMPLES BS X Jer X Hol BS X Jer Bs X Monty & Monty x Hol
TAKE HOME POINTS When used in crossbreeding systems, Brown Swiss compete with all breeds for all economically important traits. Brown Swiss are an extremely attractive option as a 3 rd breed in a rotational crossbreeding system, especially with Holsteins and Jerseys. Red Breeds did not compete as well as advertised for especially production, nor for health traits Production and fertility must be improved for Brown Swiss to remain a main option.
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