Matches in SemOpenAlex for { <https://semopenalex.org/work/W2108803320> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W2108803320 endingPage "481" @default.
- W2108803320 startingPage "475" @default.
- W2108803320 abstract "Abstract Genetic selection for or against susceptibility to facial eczema (FE) in Romney sheep began in 1975, with the establishment of a resistant (R) selection flock, a susceptible (S) selection flock, and later (in 1982) a control (C) flock. For all but the initial years, rams were identified by performance testing with a sporidesmin challenge, then ranked on relative elevation of the liver enzyme, gamma glutamyltransferase (GGT), measured in serum. A different dose rate of sporidesmin was used for performance testing in the R and the S flocks, with a balanced half of the C‐flock animals being tested at each dose rate. Results are reported here up to the 1997‐born lamb crop. Mixed‐model animal‐model methods were used to determine the direct responses to selection, expressing results as breeding values for loge GGT. Correlated responses were monitored in lambs for weights, fleece weight, and survival, and in ewes for reproductive traits. Up to 1997, a 9‐fold difference in GGT concentration, 3 weeks after challenge, was achieved between the R and S lines. Selection line differences in correlated traits were significant (P < 0.01) for weaning and January weights (with the R line 5–6% lighter than the S line), whilst the R line yearlings produced 8% heavier fleeces (P < 0.05). Ewe reproductive differences among lines were small, and nonsignificant for the overall trait (numbers of lambs weaned per ewe mated), but there were significant ram differences in fertility among lines, with highest fertility in the R line. Using a multi‐variate restricted maximum likelihood analysis, genetic correlations of lamb production traits with loge GGT were consistent in sign with the selection‐line responses, i.e., for animals which were more resistant (with lower GGT), both weaning and autumn weights decreased slightly, and both yearling weight and fleece weight increased slightly. Keywords: facial eczemasheep Pithomyces chartarum selectionsusceptibilitygenetic change" @default.
- W2108803320 created "2016-06-24" @default.
- W2108803320 creator A5008629616 @default.
- W2108803320 creator A5018213697 @default.
- W2108803320 creator A5018468287 @default.
- W2108803320 creator A5040816580 @default.
- W2108803320 date "1999-01-01" @default.
- W2108803320 modified "2023-10-03" @default.
- W2108803320 title "Correlated responses to selection for or against facial eczema susceptibility in Romney sheep in New Zealand" @default.
- W2108803320 cites W1970559972 @default.
- W2108803320 cites W2072110890 @default.
- W2108803320 cites W2122921985 @default.
- W2108803320 cites W2128626386 @default.
- W2108803320 cites W2328425062 @default.
- W2108803320 doi "https://doi.org/10.1080/00288233.1999.9513397" @default.
- W2108803320 hasPublicationYear "1999" @default.
- W2108803320 type Work @default.
- W2108803320 sameAs 2108803320 @default.
- W2108803320 citedByCount "6" @default.
- W2108803320 countsByYear W21088033202013 @default.
- W2108803320 countsByYear W21088033202015 @default.
- W2108803320 crossrefType "journal-article" @default.
- W2108803320 hasAuthorship W2108803320A5008629616 @default.
- W2108803320 hasAuthorship W2108803320A5018213697 @default.
- W2108803320 hasAuthorship W2108803320A5018468287 @default.
- W2108803320 hasAuthorship W2108803320A5040816580 @default.
- W2108803320 hasBestOaLocation W21088033201 @default.
- W2108803320 hasConcept C106934330 @default.
- W2108803320 hasConcept C134215735 @default.
- W2108803320 hasConcept C140793950 @default.
- W2108803320 hasConcept C154945302 @default.
- W2108803320 hasConcept C161890455 @default.
- W2108803320 hasConcept C18903297 @default.
- W2108803320 hasConcept C199360897 @default.
- W2108803320 hasConcept C2780655333 @default.
- W2108803320 hasConcept C41008148 @default.
- W2108803320 hasConcept C42972112 @default.
- W2108803320 hasConcept C54355233 @default.
- W2108803320 hasConcept C71924100 @default.
- W2108803320 hasConcept C81917197 @default.
- W2108803320 hasConcept C86803240 @default.
- W2108803320 hasConceptScore W2108803320C106934330 @default.
- W2108803320 hasConceptScore W2108803320C134215735 @default.
- W2108803320 hasConceptScore W2108803320C140793950 @default.
- W2108803320 hasConceptScore W2108803320C154945302 @default.
- W2108803320 hasConceptScore W2108803320C161890455 @default.
- W2108803320 hasConceptScore W2108803320C18903297 @default.
- W2108803320 hasConceptScore W2108803320C199360897 @default.
- W2108803320 hasConceptScore W2108803320C2780655333 @default.
- W2108803320 hasConceptScore W2108803320C41008148 @default.
- W2108803320 hasConceptScore W2108803320C42972112 @default.
- W2108803320 hasConceptScore W2108803320C54355233 @default.
- W2108803320 hasConceptScore W2108803320C71924100 @default.
- W2108803320 hasConceptScore W2108803320C81917197 @default.
- W2108803320 hasConceptScore W2108803320C86803240 @default.
- W2108803320 hasIssue "4" @default.
- W2108803320 hasLocation W21088033201 @default.
- W2108803320 hasOpenAccess W2108803320 @default.
- W2108803320 hasPrimaryLocation W21088033201 @default.
- W2108803320 hasRelatedWork W2063632508 @default.
- W2108803320 hasRelatedWork W2082296081 @default.
- W2108803320 hasRelatedWork W2156886328 @default.
- W2108803320 hasRelatedWork W2163027203 @default.
- W2108803320 hasRelatedWork W2174316152 @default.
- W2108803320 hasRelatedWork W2228554399 @default.
- W2108803320 hasRelatedWork W2527739504 @default.
- W2108803320 hasRelatedWork W2542015612 @default.
- W2108803320 hasRelatedWork W2808501809 @default.
- W2108803320 hasRelatedWork W2983870693 @default.
- W2108803320 hasVolume "42" @default.
- W2108803320 isParatext "false" @default.
- W2108803320 isRetracted "false" @default.
- W2108803320 magId "2108803320" @default.
- W2108803320 workType "article" @default.