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Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks

Semen quality was compared between the local Katjang and the cross-bred (local Katjang ♀ × German Fawn ♂) bucks. There were no significant genotypic differences in semen characteristics of concentration (first ejaculate: 6.19 ± 1.30 - versus 6.33 ± 1.40 × 109/ml; second ejaculate: 5.82 ± 1.10 - vers...

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Main Authors: Abdullah, R., Mukherjee, T.K., Noran, A.M.
Format: Article
Published: 1998
Subjects:
QH301 Biology
Online Access:http://eprints.um.edu.my/8382/
http://www.ajas.info/Editor/manuscript/upload/11-70.pdf
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spelling my.um.eprints.83822013-10-24T02:12:46Z http://eprints.um.edu.my/8382/ Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks Abdullah, R. Mukherjee, T.K. Noran, A.M. QH301 Biology Semen quality was compared between the local Katjang and the cross-bred (local Katjang ♀ × German Fawn ♂) bucks. There were no significant genotypic differences in semen characteristics of concentration (first ejaculate: 6.19 ± 1.30 - versus 6.33 ± 1.40 × 109/ml; second ejaculate: 5.82 ± 1.10 - versus 5.68 ± 1.45 × 109/ml, for Katjang and the cross-breds, respectively), percentage live (first ejaculate: 77.61 ± 1.33% versus 77.81 ± 0.53%; second ejaculate: 81.97 ± 1.59% versus 82.74 ± 0.96%, for Katjang and cross-breds, respectively) and percentage of normal sperms (first ejaculate: 12.54 ± 3.88% versus 26.45 ± 3.83%; second ejaculate: 38.68 ± 3.65% versus 28.54 ± 4.38%, for Katjang and cross-breds, respectively), with the exception of seminal volume and sperm motility. Means of all variables were within the values reported for other goat breeds. In contrast, the differences in semen characteristics between the first and second ejaculations of both genotypes were more distinct, the second ejaculations always had more volume, more normal sperms and better sperm motility but less sperm concentrations. Removing the seminal plasma and replacing it with tris-citrate buffer greatly prolonged the viability of sperms of both genotypes when stored at 5°C. Sperm motility seems to be a good indicator of sperm viability. However, the sperms of the cross-bred bucks withstood the washing process better and their swimming abilities were superior (8.12 ± 0.46 mm/min) when compared to those of the local Katjang breed (5.42 ± 0.49 mm/min). The higher content of calcium ions in their seminal plasma (first ejaculate: 10.5 ± 0.8 versus 10.6 ± 0.8 mg/100 ml; second ejaculate: 15.3 ± 0.8 versus 16.1 ± 0.8 mg/100 ml, for Katjang and cross-breds, respectively) means that in natural matings the sperms of the cross-breds would be at an advantage compared to those of the local Katjang, since calcium ions reportedly initiate acrosomal reactions. 1998 Article PeerReviewed Abdullah, R. and Mukherjee, T.K. and Noran, A.M. (1998) Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks. Asian-Australasian Journal of Animal Sciences, 11 (4). pp. 445-449. ISSN 10112367 http://www.ajas.info/Editor/manuscript/upload/11-70.pdf
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QH301 Biology
spellingShingle QH301 Biology
Abdullah, R.
Mukherjee, T.K.
Noran, A.M.
Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
description Semen quality was compared between the local Katjang and the cross-bred (local Katjang ♀ × German Fawn ♂) bucks. There were no significant genotypic differences in semen characteristics of concentration (first ejaculate: 6.19 ± 1.30 - versus 6.33 ± 1.40 × 109/ml; second ejaculate: 5.82 ± 1.10 - versus 5.68 ± 1.45 × 109/ml, for Katjang and the cross-breds, respectively), percentage live (first ejaculate: 77.61 ± 1.33% versus 77.81 ± 0.53%; second ejaculate: 81.97 ± 1.59% versus 82.74 ± 0.96%, for Katjang and cross-breds, respectively) and percentage of normal sperms (first ejaculate: 12.54 ± 3.88% versus 26.45 ± 3.83%; second ejaculate: 38.68 ± 3.65% versus 28.54 ± 4.38%, for Katjang and cross-breds, respectively), with the exception of seminal volume and sperm motility. Means of all variables were within the values reported for other goat breeds. In contrast, the differences in semen characteristics between the first and second ejaculations of both genotypes were more distinct, the second ejaculations always had more volume, more normal sperms and better sperm motility but less sperm concentrations. Removing the seminal plasma and replacing it with tris-citrate buffer greatly prolonged the viability of sperms of both genotypes when stored at 5°C. Sperm motility seems to be a good indicator of sperm viability. However, the sperms of the cross-bred bucks withstood the washing process better and their swimming abilities were superior (8.12 ± 0.46 mm/min) when compared to those of the local Katjang breed (5.42 ± 0.49 mm/min). The higher content of calcium ions in their seminal plasma (first ejaculate: 10.5 ± 0.8 versus 10.6 ± 0.8 mg/100 ml; second ejaculate: 15.3 ± 0.8 versus 16.1 ± 0.8 mg/100 ml, for Katjang and cross-breds, respectively) means that in natural matings the sperms of the cross-breds would be at an advantage compared to those of the local Katjang, since calcium ions reportedly initiate acrosomal reactions.
format Article
author Abdullah, R.
Mukherjee, T.K.
Noran, A.M.
author_facet Abdullah, R.
Mukherjee, T.K.
Noran, A.M.
author_sort Abdullah, R.
title Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
title_short Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
title_full Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
title_fullStr Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
title_full_unstemmed Semen quality assessment of local katjang and cross-bred (Katjang X German) bucks
title_sort semen quality assessment of local katjang and cross-bred (katjang x german) bucks
publishDate 1998
url http://eprints.um.edu.my/8382/
http://www.ajas.info/Editor/manuscript/upload/11-70.pdf
_version_ 1643688286615502848
score 13.211869

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