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Digestive tract measurements and histological adaptation in broiler lines divergently selected for digestive efficiency

Digestive tract measurements and histological adaptation in broiler lines divergently selected for digestive efficiency,10.3382/ps.2010-813,Poultry Sc

Digestive tract measurements and histological adaptation in broiler lines divergently selected for digestive efficiency   (Citations: 1)
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Journal: Poultry Science - POULTRY SCI , vol. 89, no. 9, pp. 1955-1961, 2010
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    • ...These lines also differed in feed consumption which was much higher in D- [5] and in the morphology of the digestive tract [4,6] since D+ birds presented a heavier proventriculus and gizzard and a lighter, shorter and less dense small intestine than D- birds at...
    • ...For both lines in our study, jejunum and ileum weights relative to BW23 and densities were 30.0 to 39.8% lower in D+ birds, as previously shown [4,6]...
    • ...that the 3 intestinal segments show similar modifications, consistent with the phenotypic differences recently observed in D+ and D- lines, indicating that the AMEn selection affected the whole small intestine [6]...
    • ...Indeed, histological differences between D+ and D- lines were greater in the jejunum and ileum than in the duodenum [6]...
    • ...Positive genetic correlations between the relative intestine weights and FCR were also found by Gaya et al .[ 8], consistent with the phenotypic modifications in D+ and D- lines [6]...

    Hugues de Verdalet al. Improving the efficiency of feed utilization in poultry by selection. ...

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