THE REPRODUCTIVE PERFORMANCE OF EGYPTIAN BUFFALO
HASSAN BAYOUMI MOHAMED ABOUL-ELA;
Abstract
This study was conducted during the period from Septemper, 1997 to November, 1998 at Mehallet Moussa Rrsearch Station (Kafr El-Sheikh Governorate) Animal Production Research Institute, Agriculture Research Center-in Participation with Animal Production Department, Faculty of Agriculture, Moshtohor, Zagazig University.
This study aimed at the evaluation of the reproductive performance of buffalo
cows during the post -parium period. In additon, the possible impacts of time of breeding and season of calving on these parameters were also investigated.
Atotal of 32 pluriparous buffalo calvers (20 of them gave their births during the dry feeding season and the remainder 12 calvers represented the green -feeding season). All calvings were normal and no cases of retained placenta were recorded . The newborns were kept with their dams for a week (to have their colostrum), then, the calves were removed from their dams and shifted to the artificial suckling.
The dams were randomly assigned (on the basis of breeding time) into four comparable groups. The breedings were performed at 3.0 ± 0.4; 11.6 ± 0.5 ; 16.2 ± 0.9 and 24.7 ± 1.1 hrs after the onset of heat for the four experimental groups respectively.
All buffalo cows were exposed to a strict heat observation (throughout the 24- hrs of the day) using a TV closed circuit. In addition, the females were exposed to a vasectomized buffalo bull teaser four times a day (at 6.00 am, 12.00 noon, 6.00pm and
12.00 midnight). The exposure to the teaser lasted half an hour at each round of heat detection. The clinical examination of the female reproductive tract was performed at weekly intervals starting from the 3'd week PP. Pregnancy was dignosed per rectum
45-60 day post-fertile service.
A total of 458 perepheral blood samples was collected from the jagular vein of the buffalo cows starting from the end of the 2"d week PP for P4 determination. Blood
samples were collected at a rate of 5-7 days with an addition!sample being collected
This study aimed at the evaluation of the reproductive performance of buffalo
cows during the post -parium period. In additon, the possible impacts of time of breeding and season of calving on these parameters were also investigated.
Atotal of 32 pluriparous buffalo calvers (20 of them gave their births during the dry feeding season and the remainder 12 calvers represented the green -feeding season). All calvings were normal and no cases of retained placenta were recorded . The newborns were kept with their dams for a week (to have their colostrum), then, the calves were removed from their dams and shifted to the artificial suckling.
The dams were randomly assigned (on the basis of breeding time) into four comparable groups. The breedings were performed at 3.0 ± 0.4; 11.6 ± 0.5 ; 16.2 ± 0.9 and 24.7 ± 1.1 hrs after the onset of heat for the four experimental groups respectively.
All buffalo cows were exposed to a strict heat observation (throughout the 24- hrs of the day) using a TV closed circuit. In addition, the females were exposed to a vasectomized buffalo bull teaser four times a day (at 6.00 am, 12.00 noon, 6.00pm and
12.00 midnight). The exposure to the teaser lasted half an hour at each round of heat detection. The clinical examination of the female reproductive tract was performed at weekly intervals starting from the 3'd week PP. Pregnancy was dignosed per rectum
45-60 day post-fertile service.
A total of 458 perepheral blood samples was collected from the jagular vein of the buffalo cows starting from the end of the 2"d week PP for P4 determination. Blood
samples were collected at a rate of 5-7 days with an addition!sample being collected
Other data
| Title | THE REPRODUCTIVE PERFORMANCE OF EGYPTIAN BUFFALO | Other Titles | مظاهر الصفات التناسلية فى الجاموس المصرى | Authors | HASSAN BAYOUMI MOHAMED ABOUL-ELA | Issue Date | 2001 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| حسن بيومى محمد ابو العلا.pdf | 1.16 MB | Adobe PDF | View/Open |
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