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作 者:赵彦光[1,2] 谢萍 杨国明 陈吉红 郭荣富[3] 方热军[2]
机构地区:[1]云南省畜牧兽医科学院,云南昆明650224 [2]湖南农业大学动物科学技术学院,湖南长沙410128 [3]云南农业大学动物营养与饲料科学重点实验室,云南昆明650201
出 处:《畜牧与饲料科学》2010年第11期1-4,共4页Animal Husbandry and Feed Science
基 金:云南省自然科学基金(2008ZC072M);国家农业科技成果转化资金(2009F30020525);云南省富民强县计划(2009EB070);云南生猪产业技术体系繁育研究室资助
摘 要:为了使云南种猪质量稳定提高,选择云南省生产实际中存在的4个杂交组合(即PIC402×LY、PIC402×滇陆猪N1、D×LY、Y×滇陆猪N1)进行了生产性能、屠宰性能及肉品质比较试验。试验采用单因子4处理试验设计方法,将试验猪按不同杂交组合分成4组,每组设2个重复,每个重复4头猪,所有组别饲养管理均相同。试验结果表明,日增重在20~60 kg阶段,以PIC402×滇陆猪N1组合最高,为(782±87)g,分别比其他组合高82,82和127g;在60~100 kg阶段,则为PIC402×LY>D×LY>PIC402×滇陆猪N1>Y×滇陆猪N1,且差异显著(P<0.05)。而料重比方面,在20~60 kg阶段以D×LY组合最低,为2.41±0.32,各试验组均差异显著(P<0.05);在60~100 kg阶段,为PIC402×LY<D×LY<Y×滇陆猪N1<PIC402×滇陆猪N1。屠宰率以PIC402×滇陆猪N1组合最高,为(79.57±2.59)%,而D×LY组合最低,为(76.96±2.97)%。而鲜味氨基酸含量和必需氨基酸含量都以Y×滇陆猪N1组合最高,分别是(42.07±8.91)%和(41.21±9.05)%。由此可知,在生长肥育性能方面,引入品种要明显优于云南当地品种,但在肉质风味等方面则是当地品种具有更明显的优势。In order to improve the quality of swine in Yunnan Province,four hybridized combinations(PIC402×LY,PIC402×N1,D×LY,and Y×N1) used in Yunnan Province were selected,and their growth performance,slaughter performance and meat quality were compared.Single-factor four-treatment design was used.The pigs were assigned to four groups according to their hybridized combinations,two replicates in each group and four pigs in each replicate.The same feeding and management were performed.When the daily gain was 20-60 kg,the PIC402×N1 had the highest daily gain [(782±87) g],which was 82,82 and 127 g higher than that the PIC402×LY,D×LY,and Y×N1,respectively.When the daily gain was 60-100 kg,the daily gain of PIC402×LY,D×LY,PIC402×N1 and Y×N1 decreased successively,and the differences were significant(P0.05).When the daily gain was 20-60 kg,the D×LY had the lowest feed conservation ratio(2.41±0.32),and the differences were significant(P0.05).When the daily gain was 60-100 kg,the feed conservation ratio of PIC402×LY,D×LY,Y×N1,and PIC402×N1 increased successively.The dressing percentage was highest in the PIC402 × N1 [(79.57±2.59)%] and lowest in the D×LY [(76.96±2.97)%].The content of delicious amino acids and that of essential amino acids were highest in the Y×N1,(42.07±8.91)% and(41.21±9.05)%,respectively.Therefore,the introduced pig breeds have more excellent growing-finishing performance than the local breeds in Yunnan Province,but the latter have more excellent meat quality and flavor than the former.
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