Effects Of Dietary Arginine On Energy And Nitrogen Metabolism,Fatty Digestibility And Blood Biochemical Index Of Breeding Rabbits

The purpose of this study was to explore the effects of different dietary arginine levels on the reproductive female rabbits and nitrogen metabolism, energy metabolism, fat digestibility and serum index. The test was divided into four stages, respectively, reserve restriction stage, reserve ad libitum stage, stage of pregnancy and lactation stage. Optional240body in good condition, the same or similar batch Ira parents on behalf of females, age at90days of age. Were randomly divided into three groups, each80, were fed three different levels of dietary arginine added (0,0.4%,0.8%). Conduct research on various indicators of females by feeding trials and digestion and metabolism trials.The results show that, for the reserve restriction stage mother rabbit, effects of dietary arginine level on nitrogen content in rabbit urine significantly (P=0.0256), urinary nitrogen concentration increased with the addition of dietary arginine content, first increased and then decreased; the rate of energy metabolism and digestive metabolism rate significantly (P=0.0427, P=0.0306); fat digestibility effect was not significant (P>0.05); significant effects on the activity of aspartate aminotransferase (P=0.0413), serum total cholesterol and triglyceride significantly (P=0.0277, P=0.0470); the prolactin had significant effect (P<0.001). For ad libitum stage mother rabbit, dietary arginine level indicators of female rabbits nitrogen metabolism was not significant (P>0.05); on urinary and digestive energy metabolism rate significantly (P=0.0208, P=0.0163); fat digestibility effect was not significant (P>0.05); there was no significant effects on serum biochemical indexes (P>0.05); the effect of estradiol content in serum significantly (P=0.0022), significant effect of luteinizing hormone (P=0.0180). With the addition of dietary arginine content increase, serum estradiol level has been increased, and luteinizing hormone is decreased first and then increased.For pregnant female rabbit, dietary arginine level on pregnancy female rabbit nitrogen intake and digestible nitrogen significantly (P=0.0142, P=0.0162), nitrogen intake and nitrogen can improve digestion with dietary arginine level, showing the first decreased then increased, but no significant effect on other n metabolic index (P>0.05); intake and fecal energy always significantly (P=0.0499, P=0.0159), as the dietary arginine level, intake and fecal energy has been always rise; fat digestibility effect was not significant (P>0.05); effect of aspartate aminotransferase activity and serum cholesterol content significant (P=0.0411, P=0.434), glutamic oxaloacetic transaminase activity increased with increasing dietary arginine level, first increased and then decreased, the dietary arginine dosage of0.4%, reached a maximum value, and the content of serum cholesterol increased with dietary arginine level has been lowered serum hormone indexes; effects were not significant (P>0.05), progesterone, prolactin and increasing luteinizing hormone with dietary arginine level, content in serum has been decreased, and the levels of estradiol and follicle stimulating hormone increases with increasing dietary arginine level, serum Content showed a rising trend after the first reduction, in dietary arginine dosage of0.4%, reaches a minimum value.For lactation mother rabbit, dietary arginine levels on nitrogen metabolism during lactation mother rabbit index were not significant (P>0.05); urinary and digestive energy metabolism rate significantly (P=0.004, P=0.004), the urine can, with dietary arginine level, has been on the decline, the digestion to improve, with the level of arginine metabolism rate has increased; reduced fat digestibility (P=0.0311), with increasing dietary arginine level, fat digestibility decreased. Serum total protein, urea nitrogen and serum cholesterol significantly (P=0.0469, P=0.0443, P=0.0262), with the dietary arginine level, increased first and then decreased, the dietary arginine dosage of0.4%, reached a maximum value. Luteinizing hormone significantly (P=0.0452), and decreased gradually and then increase. In the dietary arginine added0.4%reaches a minimum. For other reproductive hormones such as progesterone, estradiol, prolactin, FSH, influence is not significant (P>0.05).In this experiment, the backup restricted feeding stage mother rabbit, dietary arginine addition is0.4%; the backup ad libitum stage mother rabbit, the dietary arginine supplementation of0.4%-0.8%; for pregnant female rabbit, dietary arginine addition is0.4%; for lactation mother rabbit, dietary arginine addition is0.4%.