1466

TABLE 1 - Effect of PMS

Progestogen
# PMS

No. treated 408
% mated (induced oestrus) 712

Lambed
% ambe

 

Treated 29k

% Lambed
Treated

 

(induced oestrus) 6Ll

Progestogen Stat,

only

378
61.1

2252

59.3

*N,S, = Not Significant

TABLE 2 - Timing of PMS Treatment

Group 1
PMS Day -2

Ko, treated 96
NWo, lambed (induced oestrus) 53
Litter size 2,28
No., lambed (repeat oestrus) 16
Litter size 1.25

% Lambed (induced and 71.9
Treated repeat ocestrus)

 

Group 2
PMS Day O

92
46
1.78
26
die S

78.3

Inferencg

P<0,01

P ¢0.05

N.s.

Stat.
Inference

N.S.
N.S.

N.S.

NeSe

 

TABLE 3 - Timing the Introduection

of rams

Tmmediate Delayed

Introduction Introduction

Vo, treated

No., lambed

A

Lambed

 

Treated

TABLE 4

roup

No.,
Ewes

51
52
188

389 317
265 157

68,1 49.5 PC0,01

- Mating Management
Mated (%) Lambed (%)
9.0 40.8

90.4 25.5
93.6 56.3 P£0.05