The ~(15)N in feces and urine excreted by three goats is respectively 34.78,33.88 and 33.18% of that in diet, on an average of 33.94%. For two slaughtered goats, their ~(15)N recovery is 73.32 and 56.96%, and loss rate is 26.68 and 43.04% respectively.
Gynostemma pentaphyllum Makino which contains many more alimentary and sanitarian matter and has a very large developed space is a medicative plant. The original species of Gynostemma pentaphyllum Makino tasted bitter is a disadvantage which limitted its application in the medical industry ,the cigarette industry and the sanitarian diet industry.
2, whereas DM intake of the silage of HOC115 was much higher (P<0.01) than Tangkang No. 2. However, there was no significant difference (P>0.05) in daily gain rate and feed conversion between the two silage diets.
To evaluate the efficiency and safty of cottonseed (gossypol<0.05%)contain- ing Bt-protein from Bt-transgenic cotton plant resistant to insect,as feed for fish,a 12- week chronic toxicity test was conducted with Cypinus carpio using diets containing 30%(by weight) processed cottonseed meal from the insect resistant and normal cotton plant.