Determination amino acid digestibility contents of soybean, sunflower and canola meals in adult cockerel
2009
Yaghobfar, A., Assistant Profrssor, Researches Institute of Animal Sciences | Noori Ememzadeh, A., Assistant Member of Board, Islamic Azad University, Branch Garmsar | Mirhadi, S. A., Assistant Profrssor, Researches Institute of Animal Sciences | Hosseini, S. A., Member of Board, Researches Institute of Animal Sciences
The experiment was conducted to determine amino acid digestibility contents of the soybean meal, sunflower meal and canola meal by adult cockerels (44 birds with 50 weeks age) in completely randomized design (4 replicates for each treatment). The results of experiment showed that amino acid digestibility of oil seeds byproduct from different Iranian oil extract factories had significantly differences. Average digestibility amino acids of soybean meal, canola meal and sunflower meal were 83.89, 87.46 and 85.27, 87.12 and 77.17 and 84.66 percent respectively. Means values of apparent digestibility for lysine, methionine, cisteine and argenin content of soybean, canola and sunflower meals were 91.52, 77.43, 83.01, and 90.67, 86.12, 90.45, 77.38, 86.12 and 77.54, 85.98, 75.53, 75.11 percents, and true digestibility's were 93.26, 79.76, 87.62, 93.19, 87.97, 91.96, 79.26, 88.10 and 86.45, 52.42, 85.90, 80.72 percent. This experiment confirm that apparent and true digestibility's amino acids of oil seed meals as soybean, canola and sunflower meals and nutritive value had influence or impress of industrial produce and many factories (varieties, soil and etc). Therefore, for improve performance of birds and in order obtain nutrients requirement and also for prevent of environment infection too, we suggested that use of amino acid digestibility replaced to total amino acid content of feedstuffs.
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