Factors affecting feed digestibilities of Angora rabbits
1989
Liu Shimin | Zhang Li | Chang Cheng (Chinese Academy of Agricultural Sciences, Lanzhou (China). Lanzhou Inst. of Animal Science)
The data from a total of 116 digestive trials in Angora rabbits were analyzed. The results show: (1) The energy digestibility is not influenced by the crude protein and organic matter contents of the rations, and is in relation to the crude fiber content, the regression equation being dE=115.06-19.74lnCF (n=116, r=-0.859**, S=2.90). (2) There is insignificant influence of CF of the diets on the digestibility of crude protein. The dCP is affected by CP of the diets and varies with diet ingredents. For the diets containing less than or more than 50 percent of roughages (mainly hay meal), the regression equations are, respectively, dCP=53.10 + 1.001 CP (n=90, r=0.487 **, s=5.53) and dCP=92.74-2.684CP (n=26, r=-0.583**, s=4.17). (3) There are no significant differences of dE and dCP between the rabbits in early winter and early summer, male and female, and pregnant and nonpregnant does respectively. The dE and dCP of the lactation does are higher than that of the pregnant ones
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