Effect Of Dietary Cysteine Supplementation On Growing Performance And Serum Biochemical Parameters Of Rex Rabbit

The objective of this research was to evaluate the effects of dietary cysteine, a sulphur containing amino acid supplementation on growth performance, pelt quality and a number of serum biochemical parameters of young Rex Rabbit.120Rex Rabbits aged with45days were divided into five dietary treatment groups including one control group and4experimental groups. Each group was composed of24animals and was fed with different diets for56days corresponding to the fattening period. Diet was incorporated with0%of cysteine (control group) and0.10%,0.20%,0.30%and0.40%respectively for the experimental groups. At the end of the experiment, the results showed that cysteine supplementation to the diet affected average daily gain, live weight, skin length, skin area and pelt weight at the late phase of42to56days (P<0.05). However, the feed intake, feed efficiency, skin width and serum biochemical parameters were not affected in our study (P>0.05).