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Seasonality of Reproduction - Anatomy & Physiology (view source)
Revision as of 11:58, 28 July 2008
, 11:58, 28 July 2008→Manipulation of Seasonal breeders
==Manipulation of Seasonal breeders==
==Manipulation of Seasonal breeders==
Apart from [[Oestrous_Cycle_-Pharmacological_Manipulation_of_Oestrous_Cycles_-_Anatomy_%26_Physiology|Pharmalogical manipulation]] of the oestrous cycle, Photoperiod, Nutrition and temperature may also play a part in the controlling entry into the breeding season in some species.
===Reasons for controlling breeding seasons===
'''The Mare'''
*To shorten the Anoestrus period after foaling.
*In order to synchronize a group of mares so that they may all be mated at the same time or to make [[Reproductive_Technologies_-Multiple_Ovulation_and_Embryo_Transfer-_Anatomy_%26_Physiology|Embryo Transfer]] possible.
*Control of entry into the breeding season is particually important in producing foals for the racing industry. Racehorses run from the age of two years old, with the age of the horse being measured from the 1st of January. Producing horses born as close to the 1st of January as possible gives them a performance advantage when racing.
'''The Ewe'''
*