Learning Reproduction in Farm Animals

14-Puberty


Learning Objectives:

Puberty:     Onset of reproductive competence, i.e., both behavior and function.
 
 
Age at Puberty (months)
Female 
Male 
Sheep-Goats 
7-10 
4-6
Swine 
4-7 
4-8
Cattle 
8-11 
10-12
Brahman type cattle 
15-18
Horses 
15-18 
13-18
 
 

Onset of puberty more related to development than age.
 
 

% Mature weight at puberty
Dairy Cattle 
30-40%
Beef cattle 
45-55%
Sheep    
40-60%
             
 
 
 
 
 
 
 
 
 

Changes associated with puberty:

Female:

Tertiary follicles start to form in prepubescent period.
 
 
Hormonal changes in the male.


Illustrated Notes

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