Web(NAHMS) dairy survey in 2002 (USDA, 2002), 25.4 months is the average age at first calving in the U.S. dairy herd. Of the 44% of operations that are calving heifers at less … WebHowever, it is difficult to determine whether an animal is average for its age. Van Dijk et al. showed that veterinarians underestimate the weight of dairy cows 65% of the time and are off on average by 140 pounds 2. The same study showed that dairy farmers were off 81% of the time, and their estimates were off an average of 214 pounds.
Prepare to Breed Heifers Drovers
WebMar 24, 2024 · Breeding as early as 14 months reduces the age of first calving by 1 to 1.5 months, resulting in getting returns (milk income) from heifers earlier than before. Summary Replacement heifers are the future of the dairy herd and should be raised to maximize the potential of the herd. WebMar 31, 2014 · The Purebred Dairy Cattle Association (PDCA) has an established scorecard for fitting and showing dairy cattle. ... A combined graph of heifer weight and height by age for Jersey heifers (Source: Penn State). ... substantial levels of protein met with inferior energy can result in a delay of first breeding and thus entry into the lactating … grant beach milwaukee
Growth Charts for Dairy Heifers - Penn State Extension
WebJun 9, 2024 · The Dairy Calf and Heifer Association recommends heifers calve in at approximately 85% of mature weight. For a Holstein herd whose average mature cow weighs approximately 1,500 pounds, this is a target of 1,275 pounds. ... Your desired age at first calving will dictate breeding age. WebFeb 23, 2024 · Heifers should be approximately 65% of mature weight at breeding and 85% of mature weight post-calving so management adjustments may be required if a producer wants to reduce a 25-month to a 23-month age at first calving. For example, if the average mature cow in a herd weighs 1400 lb, a calf that weighs 190 lbs at weaning (2 … Web15 hours ago · In fact, they are the most popular breed of dairy cattle in the U.S. Holsteins are one of the largest dairy cow breeds, weighing around 1,500 pounds and measuring almost 5 feet tall at the shoulder. chinx bodies lyrics