Study On The Effective Utilization Rate Of Protein And Amino Acid In Protein Feeds On Chicken

This research took cock as tested animal, through force-feed and excrete method, done research for plant and the animal protein meal , intend to study the digestion utilization rate of the two kinds of raw material of protein as well as the effective utilization rate of amino acid. Through studying, to explore the method of appraising the unconventional protein forage effective utilization rate of amino acid , offer science basis and to adjust prescription for feedstuff resource database offers information.Trial 1 To select 144 healthy cock, which were divied into 4 groups randomly, cach group consists of 36 cock. Through force-feed and excrete method, have carried out the metabolic energy and crude protein metabolic ratio research and done a comparison with soybean meal and cotton meal,. The tested basic diet was composed of corn, soybean meal and cotton meal. energy and protein level were 12.20MJ/kg DM and 16.39%, respectively. Other nutritive matter were accoding to the feeding standard. The results as fellows: the appareat metabolism energy of soybean meal ,cotton meal, protein meal is 8.403, 7.900 and 6.756MJ/kg respectively, true metabolism energy is 11.085,10.421 and 8.92MJ/kg, respeotinely. the apparent and true metabolism energy have significant difference between protein meal and soybean meal or cotton meal . as the content of crude ash is high, the protein meal's meabolism encrgy is much lower than that of soybean meal or cotton meal. the apparent metabolism of soybean meal cotton meal and protein meal are respectively 67.421%,67.396% and 67.493% . the true metabolic rate is 87.174%,86.609%和87.751%,respectively. which shows that the apparent and true metabolic rate of protein meal is no significant difference than that of the cotton meal and soybean meal.Trial 2 To choose the healthy adult cock 100, with basically consistent weight, which were divied into 5 groups randomly, each group consist of 5 handlings , each handlings 4 repetitions , has carried out the research with protein meal , soybeans meal , fish meal , meat and bone meal for the effective content of amino acid, protein metabolic rate, the metabolic rate of amino acid and the energy metabolic rate on cock. Test basic ration from corn and soybean meal etc. metabolic energy and protein level are to be respectively: 12.59 MJ/kg. DM and 16.50%, other nutrition materials are supplied according to the feeding standard. the first group was feeded the basic ration, other groups were composed of 90% basic diet plus 10% seabean meal or fish...