Identifying small ruminant genotypes that are resistant to endoparasites

One of the alternative control strategies being advocated by scientists and goats raisers is the identification of breeds of goats that are resistant specifically to endoparasites that commonly affect existing breeds and exotic genotypes. Due to the Reported large genetic variation existing among tr...

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Main Authors: Suba, M.S., Reyes, R.O., Gray, G.D., Villar, E.C.
Format: Conference Paper
Language:Inglés
Published: Philippine Society of Animal Science 2000
Subjects:
Online Access:https://hdl.handle.net/10568/50650
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author Suba, M.S.
Reyes, R.O.
Gray, G.D.
Villar, E.C.
author_browse Gray, G.D.
Reyes, R.O.
Suba, M.S.
Villar, E.C.
author_facet Suba, M.S.
Reyes, R.O.
Gray, G.D.
Villar, E.C.
author_sort Suba, M.S.
collection Repository of Agricultural Research Outputs (CGSpace)
description One of the alternative control strategies being advocated by scientists and goats raisers is the identification of breeds of goats that are resistant specifically to endoparasites that commonly affect existing breeds and exotic genotypes. Due to the Reported large genetic variation existing among tropical and temperate breeds of goats, systematic selection for parasitic resistance combined with other methods without compromising production can be equated to economic benefits such as reduced production costs due to anthelmintics, minimal worm control treatment, and reduced contamination to both tissue residues and pasture areas, thus improving the total profitability of the goat enterprise (Woolaston et al. 1992). Resistance among goats and sheep vary between and within breeds, strains and even sub populations. Measures of endoparasite resistance include fecal egg count (EPG) and packed cell volume (PCV), having a heritability estimate of .20-30 (Gray et al. 1995). As such, this trait will respond to selection. However, geneticists and researchers have emphasized that selection for FEC should not have substantial negative influence to other important economic traits such as growth, milk and other production traits (Le Jambre and Knox, 1994).
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spelling CGSpace506502021-08-09T03:50:26Z Identifying small ruminant genotypes that are resistant to endoparasites Suba, M.S. Reyes, R.O. Gray, G.D. Villar, E.C. parasites sheep goats genotypes pest resistance One of the alternative control strategies being advocated by scientists and goats raisers is the identification of breeds of goats that are resistant specifically to endoparasites that commonly affect existing breeds and exotic genotypes. Due to the Reported large genetic variation existing among tropical and temperate breeds of goats, systematic selection for parasitic resistance combined with other methods without compromising production can be equated to economic benefits such as reduced production costs due to anthelmintics, minimal worm control treatment, and reduced contamination to both tissue residues and pasture areas, thus improving the total profitability of the goat enterprise (Woolaston et al. 1992). Resistance among goats and sheep vary between and within breeds, strains and even sub populations. Measures of endoparasite resistance include fecal egg count (EPG) and packed cell volume (PCV), having a heritability estimate of .20-30 (Gray et al. 1995). As such, this trait will respond to selection. However, geneticists and researchers have emphasized that selection for FEC should not have substantial negative influence to other important economic traits such as growth, milk and other production traits (Le Jambre and Knox, 1994). 2000 2014-10-31T06:21:29Z 2014-10-31T06:21:29Z Conference Paper https://hdl.handle.net/10568/50650 en Limited Access Philippine Society of Animal Science
spellingShingle parasites
sheep
goats
genotypes
pest resistance
Suba, M.S.
Reyes, R.O.
Gray, G.D.
Villar, E.C.
Identifying small ruminant genotypes that are resistant to endoparasites
title Identifying small ruminant genotypes that are resistant to endoparasites
title_full Identifying small ruminant genotypes that are resistant to endoparasites
title_fullStr Identifying small ruminant genotypes that are resistant to endoparasites
title_full_unstemmed Identifying small ruminant genotypes that are resistant to endoparasites
title_short Identifying small ruminant genotypes that are resistant to endoparasites
title_sort identifying small ruminant genotypes that are resistant to endoparasites
topic parasites
sheep
goats
genotypes
pest resistance
url https://hdl.handle.net/10568/50650
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AT villarec identifyingsmallruminantgenotypesthatareresistanttoendoparasites