Vle CONG. INTERN. REPROD. ANIM. INSEM. ARTIF., PARIS, 1968, VOL. II

TABLE 4

Relationship between progestagen treatment,

fertilization and lambing

-

 

Fertilization Lambing
Treatment _—— Y _m——
and Ewes Ewes fertilized Ewes lambed
. Ewes to
Reference yielded e —_—
ova Number Percent b Number Percent
-
1. Cyclic ewes
Progesterone
(i/m & i/vag) 39 30 77 45 31 69
SC-10363
(i/m & i/vag) 19 9 47 34 13 38
Controls 80 74 92 94 75 80
-
2. Cyclic ewes
SC-9880 (i/vag) 74 43 58 - - -
Controls 83 66 80 - - -
-
3. Anoestrous ewes
SC-9880
(i/m & i/vag) 29 L5 52 144 59 41
Progesterone
(i/m & i/vag) 42 23 55 133 54 41
Totals
Controls 163 140 86 94 75 80
Treated
(cyclic) 132 82 62 79 44 56
Treated
(anoestrous) 71 38 54 2177 113 41

-

From Shelton & Moore (1967), Moore, Quinlivan, Robinson & Smith
(1967), Moore & Holst (1967).

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