REPRODUCTIVE EFFICIENCY AND PROGESTERONE PROFILE
FROM PARTURITION TO PARTURITION IN DWARF GOAT
Shahnaz A. Khanum, M. Hussain, M. Ali, S. H, M.
Naqvi, R. Kausar and A. M. Cheema1
Nuclear Institute for Agriculture and Biology
(NIAB), Faisalabad; 1Department of Zoology, University of the
Pujab, Lahore, Pakistan
Abstract
A study was undertaken to look
into the reproductive performance of female Dwarf goat. The serum progesterone
profile was used to monitor various reproductive parameters including length of
postpartum period, the resumption of cyclicity, gestation period, pre-partum
period, parturition, litter size and kidding interval. Most of the animals
conceived within 20-65 days of postpartum period. During gestation period,
higher levels of progesterone were maintained with wide variations falling in
the range of3-13 ng/ml. Notable feature was the fluctuation of progesterone
level in the higher limits (> 3 ng/ml) throughout the gestation. However, a few
days before parturition a decline was noticed in all the animals. This decline
started at 6 + 0.4 days of prepartum and dropped to the lowest level of
0.1 ng/ml after the completion of parturition process. The length of gestation
period was found to be 145.5+1.1 days. A very short kidding interval (204
+ 19 days) and a big litter size was observed. All the parturitions were
normal and a considerable weight gain (8.2 + 0.3 kg) was recorded during
pregnancy. The initial birth weight of kids was 2.1 + 0.53 kg. All the
animals of the lot conceived at first or second oestrous, indicating the high
prolificacy of the breed.