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Puberty Defining - Anatomy & Physiology (view source)
Revision as of 14:58, 4 September 2008
, 14:58, 4 September 2008→Age at First Ovulation
== Age at First Ovulation ==
== Age at First Ovulation ==
* The age at which ovulation first occurs.
* The age at which [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]] first occurs.
* Manual or visual validation is required. This can be accomplished by palpation of the overy per rectum in animals that are large enough to permit insertion of a hand/arm into the rectum (cow and camelids).
* Manual or visual validation is required. This can be accomplished by palpation of the ovary per rectum in animals that are large enough to permit insertion of a hand/arm into the rectum (cow and camelids).
* Ultrasound can be used most successfully in the mare to determine ovarian status.
* Ultrasound can be used most successfully in the mare to determine ovarian status.
* When ovulation has occured, a soft depression on the surface of the ovary can be palpated.
* When [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]] has occured, a soft depression on the surface of the ovary can be palpated.
* In smaller animals (sow, ewe, bitch, queen) surgical procedures are necessary to allow visualisation of the ovary in order to determine ovulation. In addition laparoscopic observation can be used to determine when ovulation occurs.
* In smaller animals (sow, ewe, bitch, queen) surgical procedures are necessary to allow visualisation of the ovary in order to determine [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]]. In addition laparoscopic observation can be used to determine when [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]] occurs.
* All techniques require frequent observation of the ovary, so although age at ovulation is a good criterion for puberty, it is difficult to determine.
* All techniques require frequent observation of the ovary, so although age at [[The_Ovary_-_Ovulation_-_Anatomy_%26_Physiology|ovulation]] is a good criterion for puberty, it is difficult to determine.
== Age at which the Female can Support Pregnancy without Deleterious Effects ==
== Age at which the Female can Support Pregnancy without Deleterious Effects ==