Fig.3 Sequence of events associated with oestrus in the sheep

 

& Neural st imulus

/ LH relelse

Vie CONG.

           

 

FSH

 

release

Fo.lli}le'
g A

\_
\

     

Oestroge

INTERN. REPROD. ANIM.

1361

Oestrus

 

     

 

 

 

 

 

et g

Progestero

 

 

 

-36 -24 -12 0 +12 +24 +36 +48 +60

INSEM. ARTIF., FARIS, 1968, VOL.

Time in hours relative to onset of oestrus

Constructed from data of Robertson & Rakha (1965, 1966) , Moore & Brown (1968, unpublished).