动物营养学报2018，Vol.30Issue(1)：156-162,7.DOI:10.3969/j.issn.1006-267x.2018.01.020
饲粮碘添加水平对生长獭兔生长性能、屠宰性能、肌肉品质和皮张质量的影响
Effects of Dietary Iodine Supplemental Level on Growth Performance, Slaughter Performance, Meat Quality and Fur Quality of Growing Rex Rabbits
摘要
Abstract
This experiment was conducted to investigate the effects of dietary iodine supplemental level on growth performance,slaughter performance,meat quality and fur quality of 3 to 5-month-old growing Rex rab-bits. Two hundred 3-month-old healthy Rex rabbits with similar body weight were randomly divided into 5 groups with 40 replicates in each group and 1 rabbit in each replicate. Rabbits in 5 groups were fed basal diets supplemented with 0,0.2,0.4,0.8 and 1.6 mg/kg iodine(in the form of potash iodide), respectively. The adaptation period lasted for 7 days and the formal period lasted for 53 days. The results showed as follows:1) under the condition of there was no significant difference on initial body weight(IBW),dietary iodine supple-mental level had significant influence on final body weight(FBW)of Rex rabbits(P<0.05), and had ex-tremely significant influence on average daily feed intake(ADFI)of Rex rabbits(P<0.01), and had no sig-nificant influence on average daily gain(ADG)and feed/gain(F/G)of Rex rabbits(P>0.05); the highest ADG and ADFI was in 0.8 mg/kg group,and the lowest F/G was in 0.8 mg/kg group.2)Dietary iodine sup-plemental level had significant influences on hind leg muscle ratio and redness value of Rex rabbits(P<0.05), and had extremely significant influence on fore leg muscle ratio(P<0.01),but had no significant influence on eviscerated ratio, back lumbar muscle ratio and meat quality indices including pH,drip loss ratio and meat col-or(lightness and yellowness values)(P>0.05). 3)Dietary iodine supplemental level had extremely signifi-cant influence on fur area, fur whiteness and tear strength of Rex rabbits(P<0.01), and the highest values were at 0.8,0.4 and 0.4 mg/kg group, respectively. Dietary iodine supplemental level had significant influ-ence on fur weight and fur thickness of Rex rabbits(P<0.05),but had no significant influence on hair follicle density, fur glossiness, fur length, tearing break point thickness, tensile strength and stretched ratio(P>0.05). Considering all indexes of this experiment,the appropriate iodine supplemental level is 0.8 mg/kg for 3 to 5-month-old Rex rabbits(the measured value of diet iodine content is 0.92 mg/kg).关键词
碘/生长獭兔/生长性能/肌肉品质/皮张质量Key words
iodine/growing Rex rabbits/growth performance/meat quality/fur quality分类
农业科技引用本文复制引用
申垒,刘公言,左文山,赵晓宇,刘磊,李福昌..饲粮碘添加水平对生长獭兔生长性能、屠宰性能、肌肉品质和皮张质量的影响[J].动物营养学报,2018,30(1):156-162,7.基金项目
现代农业产业技术体系建设专项(CARS-44-B-1) （CARS-44-B-1）
山东省"双一流"奖补资金 （）
