FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2147950464> ?p ?o ?g. }

• W2147950464 endingPage "240" @default.
• W2147950464 startingPage "227" @default.
• W2147950464 abstract "A study was conducted to estimate heritabilities of, and genetic correlations among, body weight (WT) and testicular measurements - scrotal circumference (SC), testicular diameter (TD), testicular length (TL) and epididymal diameter (ED) - in ram lambs between 6, 9 and 12 months old, and relationship of the testicular traits with age at puberty in ewe lambs (AP). Two fat-tailed sheep breeds, the Horro and Menz, indigenous to the Ethiopian highlands were studied. Experimental lambs were produced by mating 250 oestrus-synchronized ewes of each breed to 10 sires in a single-sire mating system over three mating periods which produced, for this study, a total of 361 ram lambs and 148 ewe lambs, with substantial pedigree information, in two dry seasons (October/November 1992 and 1993) and one wet season (June/July 1993). Mean AP was 322.7 days. Breed was not significant (P0.05) for all testicular measurements, except ED at 9 months for which the Horro had a higher (P<0.01) value (20.6, s.e. 0.38 versus 19.3 s.e. 0.30). Horro ewe lambs had their first oestrus 28 days earlier (P<0.05) than the Menz. Heritability estimates were obtained from a sire model (M1) and from an individual animal model with additive direct and maternal effects (M2). The maternal effect was not fitted in M2 for AP. Repeatability and heritability estimates were also obtained by analysing records at the three ages in a repeated measures model (M3). M1 and M2 heritability estimates were generally low to moderate but were associated with large standard errors. Heritability estimates for testicular measurements were generally similar to those for WT. Among the testicular measurements, SC had the highest heritability estimates at 6 (0.45, s.e. 0.24 for M1) and at 12 months (0.41, s.e. 0.21 and 0.41, s.e. 0.20 for M1 and M2, respectively). Model 3 heritability estimates were 0.29 (s.e. 0.14), 0.24 (s.e. 0.12), 0.09 (s.e. 0.07), 0.11 (s.e. 0.08) and 0.12 (s.e. 0.08) for WT, SC, TD, TL and ED, respectively. Only repeatability estimates for WT (0.34, s.e. 0.02) and SC (0.25, s.e. 0.03) were significant. Heritability of AP was estimated at 0.16 (s.e. 0.21) by M1 and 0.14 (s.e. 0.19) by M2. Genetic correlations of AP with testicular measurements, especially with SC (-0.57, s.e. 0.38 and -0.78, s.e. 0.33, at 9 and 12 months, respectively) and TD (-0.72, s.e. 0.33 and -0.83, s.e. 0.48), were desirable and generally high. Adjustment of testicular measurements for liveweight consistently resulted in a reduction in estimates of heritability and genetic correlations. SC was suggested as the most appropriate selection candidate for the genetic improvement of both male and female reproductive performance in these breeds." @default.
• W2147950464 created "2016-06-24" @default.
• W2147950464 creator A5014920914 @default.
• W2147950464 creator A5028038579 @default.
• W2147950464 creator A5051348997 @default.
• W2147950464 creator A5058731764 @default.
• W2147950464 creator A5060634096 @default.
• W2147950464 creator A5062038337 @default.
• W2147950464 creator A5080963254 @default.
• W2147950464 date "2000-06-01" @default.
• W2147950464 modified "2023-10-18" @default.
• W2147950464 title "Reproductive characteristics of Ethiopian highland sheep" @default.
• W2147950464 cites W138513666 @default.
• W2147950464 cites W1499829218 @default.
• W2147950464 cites W1519121441 @default.
• W2147950464 cites W1532357032 @default.
• W2147950464 cites W157787333 @default.
• W2147950464 cites W1831926504 @default.
• W2147950464 cites W193738931 @default.
• W2147950464 cites W1966562913 @default.
• W2147950464 cites W1975366789 @default.
• W2147950464 cites W1978011706 @default.
• W2147950464 cites W1985610002 @default.
• W2147950464 cites W1993849755 @default.
• W2147950464 cites W1997939552 @default.
• W2147950464 cites W2010270524 @default.
• W2147950464 cites W2016257207 @default.
• W2147950464 cites W2016729586 @default.
• W2147950464 cites W2023748221 @default.
• W2147950464 cites W2026033477 @default.
• W2147950464 cites W202618005 @default.
• W2147950464 cites W2028487274 @default.
• W2147950464 cites W2042553662 @default.
• W2147950464 cites W2047846510 @default.
• W2147950464 cites W2067797961 @default.
• W2147950464 cites W2084100847 @default.
• W2147950464 cites W2085662269 @default.
• W2147950464 cites W2089481013 @default.
• W2147950464 cites W2090987693 @default.
• W2147950464 cites W2095419182 @default.
• W2147950464 cites W2101980691 @default.
• W2147950464 cites W2160292499 @default.
• W2147950464 cites W2328996736 @default.
• W2147950464 cites W2410559131 @default.
• W2147950464 cites W2412873490 @default.
• W2147950464 cites W2414145886 @default.
• W2147950464 cites W2464571626 @default.
• W2147950464 cites W269960145 @default.
• W2147950464 cites W2897188746 @default.
• W2147950464 cites W32342957 @default.
• W2147950464 cites W93043930 @default.
• W2147950464 doi "https://doi.org/10.1016/s0921-4488(99)00117-0" @default.
• W2147950464 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/10781739" @default.
• W2147950464 hasPublicationYear "2000" @default.
• W2147950464 type Work @default.
• W2147950464 sameAs 2147950464 @default.
• W2147950464 citedByCount "54" @default.
• W2147950464 countsByYear W21479504642012 @default.
• W2147950464 countsByYear W21479504642013 @default.
• W2147950464 countsByYear W21479504642014 @default.
• W2147950464 countsByYear W21479504642015 @default.
• W2147950464 countsByYear W21479504642016 @default.
• W2147950464 countsByYear W21479504642017 @default.
• W2147950464 countsByYear W21479504642018 @default.
• W2147950464 countsByYear W21479504642019 @default.
• W2147950464 countsByYear W21479504642021 @default.
• W2147950464 countsByYear W21479504642022 @default.
• W2147950464 countsByYear W21479504642023 @default.
• W2147950464 crossrefType "journal-article" @default.
• W2147950464 hasAuthorship W2147950464A5014920914 @default.
• W2147950464 hasAuthorship W2147950464A5028038579 @default.
• W2147950464 hasAuthorship W2147950464A5051348997 @default.
• W2147950464 hasAuthorship W2147950464A5058731764 @default.
• W2147950464 hasAuthorship W2147950464A5060634096 @default.
• W2147950464 hasAuthorship W2147950464A5062038337 @default.
• W2147950464 hasAuthorship W2147950464A5080963254 @default.
• W2147950464 hasConcept C102874275 @default.
• W2147950464 hasConcept C140793950 @default.
• W2147950464 hasConcept C161890455 @default.
• W2147950464 hasConcept C1998276 @default.
• W2147950464 hasConcept C2776482104 @default.
• W2147950464 hasConcept C2780284631 @default.
• W2147950464 hasConcept C42972112 @default.
• W2147950464 hasConcept C54355233 @default.
• W2147950464 hasConcept C71924100 @default.
• W2147950464 hasConcept C86803240 @default.
• W2147950464 hasConcept C90856448 @default.
• W2147950464 hasConceptScore W2147950464C102874275 @default.
• W2147950464 hasConceptScore W2147950464C140793950 @default.
• W2147950464 hasConceptScore W2147950464C161890455 @default.
• W2147950464 hasConceptScore W2147950464C1998276 @default.
• W2147950464 hasConceptScore W2147950464C2776482104 @default.
• W2147950464 hasConceptScore W2147950464C2780284631 @default.
• W2147950464 hasConceptScore W2147950464C42972112 @default.
• W2147950464 hasConceptScore W2147950464C54355233 @default.
• W2147950464 hasConceptScore W2147950464C71924100 @default.
• W2147950464 hasConceptScore W2147950464C86803240 @default.
• W2147950464 hasConceptScore W2147950464C90856448 @default.

• next