dc.contributor.author |
M. Younis |
|
dc.contributor.author |
H. A. Samad |
|
dc.contributor.author |
Nazir Ahmad |
|
dc.contributor.author |
Ijaz Ahmad |
|
dc.date.accessioned |
2023-03-07T07:24:44Z |
|
dc.date.available |
2023-03-07T07:24:44Z |
|
dc.date.issued |
1998-07-04 |
|
dc.identifier.citation |
Younis, M., Samad, H. A., Ahmad, N., & Ahmad, I. (1998). Studies on semen quality of young, adult and old buffalo bulls during low and peak breeding seasons. Pakistan Veterinary Journal, 18, 134-141. |
en_US |
dc.identifier.issn |
0253-8313 |
|
dc.identifier.uri |
http://142.54.178.187:9060/xmlui/handle/123456789/17951 |
|
dc.description.abstract |
The semen quality during the low (May-July) and the peak (September-November) breeding seasons in 18 Nili-Ravi buffalo bulls varying in age from 3 to 15 years was studied. Ejaculatory volume was higher (P < 0.05) in adult (3.03 ± 0.13 ml) and old (2.86 ± 0.13 ml) than young (2.51 ± 0.11 ml) bulls and during the low (3.44 ± 0.11 ml) than the peak (2.57 ± 0.90 ml) breeding season. Mass activity of semen collected from bulls of 3 age groups differed significantly and was higher (P < 0 .05) in the peak (2 .27 ± 0.09) than the low ( 1.49 ± 0.08) breeding season. Sperm concentration did not differ among bulls of three age groups and between the two seasons. Total sperms per ejaculate were higher (P<0.05) in semen collected from audit (3.49 ± 0.22 billions) and old (3.11 ± 0.23 billions) than young bulls (2.77 ± 0.18 billions) and in the low (3 . 38 ± 0.11 billions) than the peak (2.87 ± 0.17 billions) breeding season. Higher (P < 0.05) percentage of motile spermatozoa was seen in ejaculates collected from young (60.69 ± 0.77) and adult (62.50 ± 0.78) than old (58.16 ± 0.76) bulls and during the peak (62.35 ± 0.66) than the low (58.56 ± 0.59) breeding season. Percentage of dead spermatozoa was higher (P<0.05) in semen collected from old (14.57 ± 0.74) than young ( 13.96 ± 0.98) and adult (12.04 ± 0.67) bulls and in the low ( 14.30 ± 0.57) than the peak (12.74 ± 0.75) breeding season.
Ejaculates collected from old bulls (14.29 ± 1.03%) had higher (P < 0.05) number of abnormal spermatozoa than those from young 13.02 ± 0.85%) and adult (12.22 ± 0.58%) bulls and in the low (13. 74 ± 0.61%) than the peak (11. 94 ± 1.61%) breeding season. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Faisalabad: Faculty of Veterinary Science University of Agriculture Faisalabad |
en_US |
dc.title |
STUDIES ON SEMEN QUALITY OF YOUNG, ADULT AND OLD BUFFALO BULLS DURING LOW AND PEAK BREEDING SEASONS |
en_US |
dc.type |
Article |
en_US |