| Effect of Supplementation with Agro-industrial By-products and Khat (Catha edulis) leftovers on testicular growth and sperm production in Ogaden bucks. | |
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MedLine Citation:
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PMID: 17381680 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to characterize growth and sperm production parameters in Ogaden bucks fed a basal diet of hay and supplemented with agro-industrial by-products and Khat leftovers in Ethiopia. Thirty-five bucks with a mean (+/-SD) initial live body weight (BW) of 15.5 +/- 1.5 kg were randomly assigned to one of four dietary treatments for a period of 13 weeks. Treatments consisted of native hay fed ad libitum (control; C), native hay supplemented with a 1% of BW agro-industrial by-products (treatment 1; T1), native hay supplemented with Khat (Catha edulis) leftovers at a rate of 1% of BW (treatment 2; T2) and Khat leftovers fed ad libitum (treatment 3; T3). Bucks fed on T1-T3 had higher BW, body condition score, scrotal circumference (SC), testicular width and testicular length, compared to controls (P < 0.05). Also, bucks in T1-T3 had higher sperm progressive motility, sperm concentration per ml and total number of spermatozoa per ejaculate compared to controls (P < 0.05). Between treatments, bucks in T3 recorded the highest BW (17.2 +/- 0.16) and testicular size (21.1 +/- 0.17 cm). Both testicular and epididymal weight and dimensions were significantly affected (P < 0.05) by supplementation compared to controls. Testicular size was positively correlated to live BW (r = 0.53, P < 0.001). SC was positively correlated with ejaculate volume (r = 0.37, P < 0.001), sperm mass activity (r = 0.65, P < 0.001) and individual sperm progressive motility (r = 0.40; P < 0.001). Supplementation with Khat leftovers induced the highest improvement in live BW, testicular size, semen production and sperm motility in Ogaden bucks and can possibly be considered as a feed supplement to enhance goat production under smallholder livestock farming system in Ethiopia. |
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Authors:
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Y Mekasha; A Tegegne; H Rodriguez-Martinez |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of veterinary medicine. A, Physiology, pathology, clinical medicine Volume: 54 ISSN: 0931-184X ISO Abbreviation: J Vet Med A Physiol Pathol Clin Med Publication Date: 2007 Apr |
Date Detail:
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Created Date: 2007-03-26 Completed Date: 2007-05-21 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 100955112 Medline TA: J Vet Med A Physiol Pathol Clin Med Country: Germany |
Other Details:
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Languages: eng Pagination: 147-55 Citation Subset: IM |
Affiliation:
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Division of Comparative Reproduction, Obstetrics and Udder Health, Department of Clinical Sciences, Swedish University of Agricultural Sciences, PO Box 7039, 75007 Uppsala, Sweden. y_mekasha@yahoo.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animal Nutritional Physiological Phenomena* Animals Catha / chemistry* Dietary Supplements Ethiopia Goats / physiology* Male Organ Size / drug effects Sperm Count / veterinary Sperm Motility / drug effects Spermatogenesis / drug effects* Testis / anatomy & histology, drug effects, growth & development* Weight Gain |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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