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The use of CIDRs with synchronization protocols helps improve reproductive performance by reducing the inefficiency associated with estrus detection. [ 6 ] Although there is variability in the response to estrus synchronization, studies show consistently high pregnancy rates following Fixed Time Artificial Insemination with CIDR synchronization ...
Estrous synchronisation is the process of targeting female mammals to come to heat within a short time frame (36 to 96 hours). This is achieved through the use of one or more hormones. Methods to improve our ability to synchronize the reproductive process and result in the ‘timed insemination’ without the detection of heat have been developed.
Much estrous control in cattle is for the purpose of synchronization, a practice or set of practices most often used by cattle farmers to control the timing and duration of estrus in large herds. [4] There is variation between the available methods of cattle estrous synchronization.
The commandment is preceded by the instruction that a calf or lamb is only acceptable for sacrifice on the eighth day (22:26). [1] The Hebrew Bible uses the generic word for bull or cow (Hebrew: שור showr [2]), and the generic word for sheep and ewe (שה seh) and the masculine pronoun form in the verb "slaughter-him" (Hebrew shachat-u)
Female seasonal breeders will have one or more estrus cycles only when she is "in season" or fertile and receptive to mating. At other times of the year, they will be anestrus, or have a dearth of their sexual cycle. Unlike reproductive cyclicity, seasonality is described in both males and females.
The final section (verses 31-46) is sometimes referred to as The Sheep and the Goats [10] but other times referred to as "The Judgment of the Nations". [11] Although often called a "parable", it is not a story as such, but the portrayal of the Son of Man as a shepherd and the people under judgment as sheep or goats can be treated as "parabolic ...
The second breeding phase of the rut takes place three to four weeks after the first breeding phase. This is due to younger cows coming into estrus, as well as older cows that were not bred on their first estrus cycle coming back into estrus. Herd bulls are less aggressive towards satellite bulls at this phase in the rut due to exhaustion. [14]
A sheep–goat chimera (sometimes called a geep in popular media [13]) is a chimera produced by combining the embryos of a goat and a sheep; the resulting animal has cells of both sheep and goat origin. A sheep–goat chimera should not be confused with a sheep–goat hybrid, which can result when a goat mates with a sheep.