Open cows? Diagnosing the failure to reproduce
نوشته شده توسط : jin

Open cows are merely a fact of the cattle business. Managing to attain a 100% pregnancy rates are simply not cost effective, nor should it be your goal. Using a few open cows every year implies some selection pressure is being placed on fertility and animals best-fit for your environment. However, when the number of open Lida Diet Pills cows is excessive (more than 5%), evaluation of management, nutrition and herd health must take place.

Research illustrates a powerful link between body condition score (BCS) of cows as well as their capability to breed back. Numerous studies (Selk et. Al., 1988; Pruit & Momont, 1990; Houghton et al., 1990) show that BCS plays a role in subsequent pregnancy rates. Cows in better condition (BCS >5) have a greater probability of breeding early and a greater chance at getting pregnant and staying pregnant. Thin cows at calving generally don't breed up well. Remember back to calving-- were cows thin? This can be the reason for poorer preg-check results and signal to you to improve nutrition ensuring better cow BCS.
Nutritional plane or even the putting on weight pattern of girls may also be at fault. Cattle slimming down often do not get pregnant or stay pregnant. Dairy cattle have battled negative energy balance and the subsequent effects on conception rate for a long time. It makes sense--if your cattle cannot support putting on weight or maintenance then why must they support pregnancy? Thus, if cattle were slimming down sometimes of breeding, then likely they would not conceive in high percentages. Research conducted at the Orr Research Center looked into the result of supplementing lush, spring pastures. The wet, high protein grass could cause nutritional challenges to high producing beef cows. Our research showed a numerical benefit of a 4 lb./hd/d supplement on AI conception rates. In summary, preparing cattle to gain weight, or certainly not lose it, during breeding season may benefit your preg rates.
Many producers have to haul cows to various pastures. Transporting cows can lead to stress that can effect conception. The rule is not to haul cows 4 to 45 days after breeding. This coincides with embryo implantation, a sensitive time when trying to get a cow pregnant. That leaves a few options. Many cattlemen go to timed AI and haul cows to pasture within 3-4 days of breeding. Others may breed and graze pastures for a while before hauling an organization to another pasture. Bear in mind transportation stress may play a role in conception and pregnancy rates.


Drought and feed costs have enticed producers to feed some questionable feeds recently. Feeds containing mycotoxins such as aflatoxin, fusarium, zeralenone, etc. can be responsible for abortion of the cow if levels are extremely high. Testing high-risk feeds is essential. Eliminating the feed from the ration or addition of a toxin binder might be necessary.
Compromised herd health is many times worthy of investigation. The vet may have the very best capability to diagnose herd health issues. Visual appraisal in addition to blood jobs are usually required to figure out what disease might be causing failure of cattle to reproduce and hold getting pregnant. Some common diseases that may result in abortion or failed breeding are Anaplasmosis, Bovine Respiratory Disease (BRD), Leptospirosis, Leukosis, and Neospora. Talk to your veterinarian for additional info on the Lida Weight Loss possibility of these diseases being the culprit of a poor preg-check.
Bred cows are valuable property at this time. As cattlemen see economic signals to expand the cowherd, breeding stock and calf prices will continue to remain strong. Proper health and nutrition leading to desired pregnancy results is essential for cattlemen seeking to take advantage of this market.

 





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تاریخ انتشار : پنج شنبه 15 آبان 1393 | نظرات ()
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