There is still no exact and unanimous opinion on the start of insemination. Couple that with the cost of a technician to inseminate the cows ($6 per cow) and frozen semen from a good beef bull with a proven record of quality offspring ($18 per cow). intervals. Breeding earlier than 45 days after calving is sometimes possible, but is not recommended due to increased chances of infection and abortion. intervals of eight to 16 hours after the onset of high activity and trended lower for both earlier and later A.I. Inseminate the cow as soon as possible after the semen is properly thawed and the inseminating device is assembled. Chances are first calf heifers won't breed back as soon as mature cows, but it's safe to put them with the bull or to AI them once the 45 day window has passed. Scientists explain just such a period by lowering the level of milk production and lactation, which does not exceed 305 days. In addition, research based on levels of the hormone progesterone in milk shows that up to 15 percent of the cattle presented for insemination are not in heat. To achieve a high 100 day-in-calf rate, a high percentage of cows in the herd must be submitted to insemination without undue delay after calving. insemination within a specified number of days after calving. Even if artificial insemination is not utilized, estrus synchronization can help increase the number of thin cows to cycle earlier in the breeding season. Cows that are not well fed during pregnancy take longer to start cycling again after calving than cows that are well fed. Among second-lactation and older cows, conception rates were similar until 16 hours after … Prepare insemination devices in a warm, clean environment near the breeding chute, but far enough away to avoid excessive dust and debris near the cattle. Beef cattle producers can tail-chalk cows, at about 50 days after calving, while the cows are crowded in a long working chute or alley. That's $36 total per cow inseminated. Reason #2: Farmers “breed back” their mamma cows 2-3 months after they have a calf. Thanks to the insemination window, you know exactly when insemination has the highest probability for success, at which time success probability is already reduced and at which time you shouldn’t inseminate the cow anymore. For more information on feeding strategies, see: Feeding Cows After the Flood. He wants all his girls bred back before then. Feeding young cows after calving. Use reproductive technologies. 8.1.5 Conception rates This is a beautiful cycle that is done on purpose, intentionally and is healthy for the cow, calf and life in general. Failure to detect cows that are in heat and breeding cows not in heat result in economic loss for the producer because of extended calving intervals and additional semen expense. The optimum time to breed her is 45 to 60 days after she has had a calf. Among first-lactation cows ( Figure 3), optimum conception occurred at A.I. In order to get her to calve on the same date as the previous years, allow for 80 to 90 days of rest before getting her bred again. My friend who has a dairy starts to get panicky if he has an open cow 3 months after she calves. When can I inseminate a cow after calving. For good fertility and milk production, first calvers in particular must be well fed after calving. A cow should be bred back after she has had a calf. Importance of Cow Nutrition from Calving through Breeding Replacement beef heifers could be expected to have a high percentage of cycling animals when they are about 13-14 months of age and weigh approximately 65% of their expected mature body weight. Ideally cows should calve in medium body condition, preferably in condition score 2.5 to 3.0. The 80-day submission rate is the percentage of cows that receive at least one insemination by 80 days after calving. Still, most veterinarians advise seeding cows three months after the birth of a calf. The system analyses behaviour over a longer time and suggests an insemination time as soon as oestrus has been detected. At 60% to 65% conception, the AI program costs $55 to $60 per calf born – about 20% less than the bull.

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