Clandeboye Champion Willow Cow

Fertility Programs to Achieve High 21-day Pregnancy Rates

Hormonal synchronization protocols have been incorporated widely into reproductive management programs by dairy farmers (Caraviello et al., 2006; Norman et al., 2009). The initial impact of timed AI protocols on 21-day pregnancy rates in U.S. dairy herds has been to increase the AI service rate (Norman et al., 2009); however, a deeper understanding of the […]

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Holstein dairy cows eating

The Role of Nutrition in Reproduction

Management, genetics, physiology and nutrition all play an important role in improving dairy reproduction on the farm.  But the question today is, what is the role of nutrition in improving reproductive efficiency in today’s dairy herds? In the DAIReXNET webinar The Role of Nutrition in Reproduction, Dr. Milo Wiltbank, UW-Madison Department of Dairy Science, discusses […]

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Image of Holstein cow in a field

Timing is Everything in Pregnancy

Identification of nonpregnant dairy cows early after insemination, and coupling a nonpregnancy diagnosis with a strategy to rapidly rebreed nonpregnant cows, can improve the pregnancy rate in a dairy herd. This can be accomplished twofold by reducing the interval between A.I. services, thereby raising A.I. service rate. Methods for early pregnancy diagnosis in cattle can […]

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A glass of milk

Pregnancy Diagnosis in Dairy Cows using PAG Levels in Blood and Milk

UW-Extension Dairy Reproductive Specialist Paul Fricke shares in the Dairy Science webinar Pregnancy Diagnosis in Dairy Cows using PAG Levels in Blood and Milk new data regarding PAGs in blood and milk. For more information regarding dairy reproduction, please visit UW-Extension Dairy Reproduction or contact UW-Extension Dairy Reproductive Specialist Paul Fricke.

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Clandeboye Champion Willow Cow

30:30 Four Keys to Achieving a 30% Pregnancy Rate in a 30,000 lb Dairy Herd

In a recent presentation, UW-Extension Dairy Reproductive Specialist Paul Fricke shares Four Keys to Achieving a 30% Pregnancy Rate in a 30,000 lb Dairy Herd.  The four keys include: Aggressively inseminate cows at the end of the voluntary waiting period Increase fertility to first AI Identify nonpregnant cows and aggressively reinseminate them Increase fertility to […]

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