The two extreme types of dairy cattle which are also the breeds most frequently imported into the tropics are the Friesian and the Jersey. Stretching the breeding season too long. Estrus is defined as the period where a female (in this case, a cow or heifer) is receptive to a male (or, the bull). Breeding Values Explained. This was a statement made by Dr. Finbar Mulligan at one of Alltech’s breeding seminars, where he outlined the key principles for successful breeding. Breeding Worth is the industry index which ranks cows and bulls on their ability to breed profitable and efficient replacement dairy heifers. In a healthy herd that has a 95 percent or greater pregnancy rate year after year in a 60-day breeding season, chances of having vibrio are low. Infertility in cattle – causes and treatment. 2. Because breeding beef cattle is all about getting cows bred for producing calves to sale either for replacements or for beef. A 42-day cattle breeding season ensures that only the most fertile and lowest-maintenance cows will rebreed and remain in your herd. ... layers and sheep and horse breeders manipulate the breeding season with light exposure. Breeding values are calculated using information which is collected by farmers, on-farm. Mineral and vitamin supplementation are therefore an important area for dairy farmers to invest in, as deficiencies will affect the health and reproductive ability of dairy cattle. Infertility in cattle accounts for major economic losses in dairy farming and dairy industry in India. It is critical that these heifers attain enough weight to initiate their first estrous cycle before the onset of the breeding season. D Transport of cattle 170 E Proper handling of dairy animals 172 4.2 Dairy animal breeding concepts A Reproduction planning and goals 173 B Breeding seasons 174 C Infertility in a dairy herd 175 4.3 Breeding practices 176 A Natural breeding 177 B Artificial insemination (AI) 178 C Gestation in cows 181 D Birth and after-birth process 182 The introduction of germplasm through AI is crucial to enhance the production potential of the local breeds. A mature bull will be able to cover up to 30 cows on average. 5.3.1 European dairy cattle. Speaking briefly on why good fertility is so important for the success of a dairy herd, he … Presented at Ontario Dairy Symposium 7, Ontario Large Herd Operators. Breeding beef cattle is relatively easy as compared to breeding dairy cattle. Low breeding efficiency in dairy cattle during seasonal high environmental temperature has been reported by various authors (4, 5, 10, 13, 15, 17). Some research has suggested that only 34% of beef cattle operations have a clearly defined breeding timeframe, and 26% have a season that is fewer than 64 days. Yearling beef heifers conceiving early in their first breeding season, will have increased lifetime production and efficiency. Accordingly, this research analyzed the effect of both cow’s breed and breeding season on pregnancy outcomes in commercial dairy farms. This study determined the prevalence of lameness in a group of 786 cows in 10 pasture-based Irish dairy … A 42-day breeding season improves your herd genetics. Dairy cattle breeding is an important technology in the enhancement and promotion of dairy production in Uganda. Keeping the breeding season short can yield a number of advantages, including: More predictable calf crop weight and marketing options; When breeding cows you will need to consider how many bulls can cover the number of cows you plan to breed. 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