Effects of Different Levels of Pummelo Leaves in Diets on Growth Performance, Total Tract Apparent Digestibility of Nutrients in Diets and Slaughter Performance of Growing Rabbits

TIAN Gang; XIE Wenmei; YU Bing; CHEN Hang; CAI Jingyi; ZHANG Kai; LIU Hanzhong

doi:10.3969/j.issn.1006-267x.2016.04.024

2016 , Vol. 28 >Issue 4: 1145 - 1151

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.04.024

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Effects of Different Levels of Pummelo Leaves in Diets on Growth Performance, Total Tract Apparent Digestibility of Nutrients in Diets and Slaughter Performance of Growing Rabbits

TIAN Gang ,
XIE Wenmei ,
YU Bing ,
CHEN Hang ,
CAI Jingyi ,
ZHANG Kai ,
LIU Hanzhong

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1. Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China;
2. Institute of Grass-Feeding Livestock, Sichuan Academy of Grassland Science, Chengdu 611333, China

Received date: 2015-11-11

Online published: 2016-04-11

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Abstract

The aim of this study was to investigate the actual feeding effects of diets containing different levels of pummelo leaves for growing rabbits and recommend the best level of pummelo leaves in rabbit diets. A total of 120 healthy and 35-day-old French IRA rabbits with the same genetic background and similar weight were used in a randomized design, which consisted of four groups and ten replicates in each group, three rabbits in each replicate after adaptation period. Four groups were fed different diets that had similar nitrogen, energy and fiber and the levels of pummelo leaves in the diets were 0(control group), 6%(group Ⅰ), 12%(group Ⅱ) and 18%(group Ⅲ), respectively. The adaptation period lasted for 7 d and the experimental period lasted for 28 d. The results showed as follows:1) except for the average daily feed intake of growing rabbits in group Ⅲ was significantly lower than that in group Ⅱ(P<0.05), the average daily gain and feed conversion rate of growing rabbits in control group and experimental groups had no significant differences in this study(P>0.05). 2) The total tract apparent digestibility of neutral detergent fiber in diets in control group and group Ⅲ was significantly higher than that in groups Ⅰ and Ⅱ(P<0.05), and the total tract apparent digestibility of ash in group Ⅱ was significantly higher than that in control group and group Ⅰ(P<0.05). 3) At the end of this experiment, live weight in group Ⅲ was significantly lower than that in groups Ⅰ and Ⅱ(P<0.05), hot carcass weight in control group was significantly lower than that in groups Ⅰ and Ⅱ(P<0.05), body length in group Ⅲ was significantly lower than that in other groups(P<0.05), and thigh circumference in groups Ⅰand Ⅲ was significantly lower than that in group Ⅱ(P<0.05). In conclusion, the diets containing 6% to 18% pummelo leaves have no adverse effects on growth performance, total tract apparent nutrient digestibility and slaughter performance of growing rabbits, and the best level of pummelo leaves in rabbit diets is 12%.

Key words： growing rabbits; pummelo leaves; growth performance; total tract apparent digestibility of nutrients; slaughter performance

Cite this article

TIAN Gang , XIE Wenmei , YU Bing , CHEN Hang , CAI Jingyi , ZHANG Kai , LIU Hanzhong . Effects of Different Levels of Pummelo Leaves in Diets on Growth Performance, Total Tract Apparent Digestibility of Nutrients in Diets and Slaughter Performance of Growing Rabbits[J]. Chinese Journal of Animal Nutrition, 2016 , 28(4) : 1145 -1151 . DOI: 10.3969/j.issn.1006-267x.2016.04.024

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