Research Journal of Poultry Sciences
ISSN: OnlineISSN: Print 1993-5285
Abstract
The experiment was conducted to determine metabolizable energy and amino acid digestibilities of the soybean, sunflower and canola meals using broiler chickens by collection digesta from the terminal ileum and excreta using titanium oxide (indigestible marker) in intact and caecectomized cockerels. The mean excreta apparent and true digestibility of amino acid in broiler and intact cockerel for soybean meal were 76.99, 78.07, 84.18 and 88.35 sunflower meal: 92.16, 92.84, 78.09 and 85.94 and canola meal 69.82, 70.22, 86.47 and 88.50%, respectively. The mean values of ileum apparent and true digestibilities (Standardized Ileal digestibility) of amino acid in broiler for soybean meal were 72.18 and 73.12; sunflower meal: 47.48 and 48.47 and canola meal: 62.05 and 62.45%, respectively. The average apparent and true digestibilities of amino acid in caecectomized cockerel and broiler in soybean meal were 80.34 and 84.45 sunflower meal 74.48 and 82.47 and canola meal 84.74 and 87.12%, respectively. Apparent digestibility of amino acid in soybean, sunflower and canola meals measured in broiler (excreta and ileum) were 9-11, 34-50 and 19-27% units lower than those measured in intact and caecectomized cockerel. The AME, AMEn, TME and TMEn values for canola and sunflower meals obtained at 21 and 42 days broiler age were significantly higher than cockerels. Intact cockerels obtained higher metabolizable energy from canola and sunflower meals than those broiler excreta or ileum and caecectomized cockerels.
How to cite this article:
Akbar Yaghobfar. Effects of Bioassay and Age on Amino Acid Digestibility and Metabolizable Energy of
Soybean, Sunflower and Canola Meals.
DOI: https://doi.org/10.36478/rjpscience.2015.5.16
URL: https://www.makhillpublications.co/view-article/1993-5285/rjpscience.2015.5.16