2010
DOI: 10.1017/s2040470010000038
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Reproductive performance and milk production of Girolando cows imported from Brazil to the Kpinnou ranch in southwest Benin

Abstract: bivariate models where the response variables were the observations on one trait expressed in one system and the same trait in the other system. The breeding values obtained by each of these bivariate models were used to compute the correlation between EBV in an intensive fattening system and pasture and to compute the R 2 -adjusted of the regression of EBV in intensive against EBV in pasture. Results and discussionOur results show the existence of significant GEI for growth during the post weaning period in C… Show more

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“…For this reason, these differences cannot be considered as significant, except for the relationship between the empty digestive tract weight and the other traits, which were higher in pasture than in intensive fattening. This result suggests two hypotheses: that the efficiency of the digestive system of Creole cattle is such that it can extract from low nutritional level foodstuffs enough resources to be allocated simultaneously both to production traits and its own energy deposit (de Jong and van Noordwijk, 1992); and that this efficiency could be due to the higher weight of the digestive tract observed in pasture with respect to the intensive fattening system. However, the genetic relationship between tissue deposition and growth potential does not appear to differ between systems.…”
Section: Resultsmentioning
confidence: 98%
“…For this reason, these differences cannot be considered as significant, except for the relationship between the empty digestive tract weight and the other traits, which were higher in pasture than in intensive fattening. This result suggests two hypotheses: that the efficiency of the digestive system of Creole cattle is such that it can extract from low nutritional level foodstuffs enough resources to be allocated simultaneously both to production traits and its own energy deposit (de Jong and van Noordwijk, 1992); and that this efficiency could be due to the higher weight of the digestive tract observed in pasture with respect to the intensive fattening system. However, the genetic relationship between tissue deposition and growth potential does not appear to differ between systems.…”
Section: Resultsmentioning
confidence: 98%