Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/58113
Title: Association of wool growth with gut metabolism and anatomy in sheep
Contributor(s): De Barbieri, I  (author); Hegarty, R S  (author); Li, Li  (author)orcid ; Oddy, V H  (author)orcid 
Publication Date: 2015-03
DOI: 10.1016/j.livsci.2014.12.018
Handle Link: https://hdl.handle.net/1959.11/58113
Abstract: 

The hypothesis tested by this study was that sheep with divergent estimated breeding values (EBV) for fleece weight differ in gut metabolism and anatomy" regardless of the level of intake. Adult Merino wethers with contrasting EBVs for fleece weight were fed at two levels of intake in two 7-week periods in a crossover design, where wool growth, gut metabolism and anatomy of the sheep were evaluated. Regardless of the level of intake, wool genotype affected wool growth (P<0.05); however, rumen metabolism and gut anatomy did not differ between wool genotypes (P<0.05). Increases in the level of intake increased the supply of nutrients to the animal and the measured end-products of the process (wool production, live weight, methane) independent of wool genotype. The results obtained in this study indicate that differences in gut fermentation and anatomy are not a major cause of differences in wool production among sheep of different estimated genetic merit for fleece weight when fed restricted intakes.

Publication Type: Journal Article
Source of Publication: Livestock Science, v.173, p. 38-47
Publisher: Elsevier BV
Place of Publication: The Netherlands
ISSN: 1871-1413
Fields of Research (FoR) 2020: 300305 Animal reproduction and breeding
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Journal Article
School of Environmental and Rural Science

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