| The determination of suitable digestive energy requirement to ensure a best reproductive performance is very important for the establishment of appropriate technologies and Nutritional regulation for Rex Rabbit and provide the basis for improvement in order to promote faster Rex rabbit industry .The purpose of this study was to determine suitable digestive level for a commodity Rex rabbit's production performance, production skin performance, fan-speed development. The research in the field was divided into 2 different experiments, and the result showed that, for: EXPERIMENT1This study we selected 2 months old Rex 120 randomly divided into 5 treatment groups with 6 replicates per treatment, each replicate four Rabbit, and we used repetitive single factor completely randomized experimental design to study the different levels of dietary digestible energy (9.627MJ / k, 9.941MJ / k, 10.255MJ / k, 10.569MJ / k, 10.883 MJ / kg) on growing Rex rabbit production performance, the production performance of the skin. The following results showed that :â‘ different levels of dietary digestible energy had significant effect on average daily gain, feed intake and feed conversion efficiency of young Rex rabbit (P<0.05).With different energy level, Rex rabbit's daily feed intake and daily gain weight decreased first and then increased the trend, the ratio of feed was first increased and then decreased trend.â‘¡different levels of digestible energy had significant effect on Skin weight of young Rex rabbit(P> 0.05), but it had no significant effect on Skin length, Skin width, Skin area and carcass weight (P> 0.05).With the increasing of energy level, Rex Rabbit skin weight was first high and then decreased trend.â‘¢Growth performance and rate of death to be considered as the main indicators, digestible energy requirements of young Rex rabbit f 2 - 3 months old requested not exceed 9.627 MJ / Kg.EXPERIMENT2Selected close to parity, healthy, no disease found, 80 Rex rabbit adult rabbit does, weight before pregnancy, according to the same principles were randomly divided into 5 groups, each group 16rabbits does. Repeat single factor completely randomized experimental was designed to study the different levels of digestible energy's diet (9.627MJ / k, 9.941MJ / k, 10.255MJ / k, 10.569MJ / k, 10.883 MJ / kg) on reproductive performance of female Rex rabbit. The following results showed thatâ‘ different levels of digestible energy had no significant effect on weight change of adult females Rex rabbit (P> 0.05).â‘¡Different levels of dietary digestible energy had significant effect on daily feed intake the average individual weight and average daily gain of young Rex rabbit (P> 0.05).â‘¢Different levels of dietary digestible energy had significant effect on survival rate of 21days old (P <0.05), but it had no significant effect onlitter weight at birth, 21-day litter weight, litter weight gain and lactescence (P> 0.05). Digestible energy level of 10.569 MJ / kg, the survival rate was significantly higher than the other four treatment groups.â‘£Reproductive performance and the number of survival kitten as the main performance indicator, 10.569MJ/kg is the appropriate digestible energy recommended for females Rex rabbit. |
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