本试验旨在研究爱拔益加(AA)肉种鸡产蛋中期(40~42周龄)饲喂不同能量水平饲粮对子代生长性能和肉品质的影响。试验采用单因子试验设计,选用20周龄体重相近的AA肉种母鸡300羽,随机分为3组,每组5个重复,每个重复20羽。当产蛋率达到5%时开始正式试验,对照组饲喂玉米-豆粕型基础饲粮,高能组、低能组饲粮能量水平分别为对照组的120%和80%,各组均限饲且饲喂量相同。子代选用孵化后的1日龄公雏300只,试验分组与母代相同。子代饲喂正常能量水平饲粮,自由采食、饮水,试验期为49 d。结果表明:1)和对照组相比,高能组显著降低了子代的初生重,1~28日龄、1~49日龄的平均日采食量,28日龄腿肌的粗蛋白质含量和胸肌剪切力以及49日龄胸肌和腿肌的亮度值(P<0.05);显著提高了子代28、49日龄胸肌和腿肌的粗脂肪含量和滴水损失(P<0.05)。2)和对照组相比,低能组显著降低了子代的初生重(P<0.05),显著提高了子代1~49日龄的平均日采食量和平均日增重(P<0.05);显著提高了子代28日龄胸肌的粗脂肪含量(P<0.05);显著降低了子代28日龄胸肌和腿肌的剪切力、49日龄腿肌的滴水损失(P<0.05);显著提高了子代49日龄腿肌的亮度和红度值以及28日龄腿肌、49日龄胸肌和腿肌的黄度值(P<0.05)。结果提示,相比高能组和对照组,低能组更有利于提高子代生长性能,改善子代的肌肉品质。
This experiment researched on the effects of dietary energy level of broiler breeders during the medium laying period (40 to 42 weeks of age) on growth performance and meat quality of the offspring. A single factor design was adopted, and 300 Arbor Acres (AA) broiler breeders (20 weeks of age) with similar body weight were randomly divided into 3 groups with 5 replicates per group and 20 birds in each replicate. The experiment was conducted when laying rate reached 5%. The broiler breeders in the control group were fed a corn-soybean meal basal diet, and those in high energy group and low energy group were fed the diets with the 120% and 80% energy levels of the basal diet, respectively. During the experiment period, feed intake in each group was restricted and set the same. Three hundred 1-day-old male broilers were divided into 3 groups as same as the broiler breeders. The offspring were allowed to feed and drink ad libitum, and fed normal energy level diet. The experiment was lasted for 49 days. The results showed as follows: 1) compared with the control diet, the offspring of broiler breeders fed high energy diet had lower birth body weight, average daily feed intake at 28 and 49 days of age, protein content of thigh muscle and shear force of breast muscle at 28 days of age, and L* value of breast muscle and thigh muscle at 49 days of age (P<0.05); and had higher fat content and drip loss of breast muscle and thigh muscle at 28 and 49 days of age (P<0.05). 2) Compared with the control diet, the offspring of broiler breeders fed low energy diet had lower birth body weight (P<0.05); and had higher average daily feed intake and daily gain at 49 days of age (P<0.05); and had higher fat content of breast muscle at 28 days of age (P<0.05); and had lower shear force of breast muscle and thigh muscle at 28 days of age, drip loss of thigh muscle at 49 days of age (P<0.05); and had higher L* and a* values of thigh muscle at 49 days of age, b* value of thigh muscle at 28 days of age, and b* value of breast and thigh muscle at 49 days of age (P<0.05). In conclusion, compared with the high energy diet and the control diet, the low energy diet can improve the growth performance and meat quality of the offspring.
[1] MOUSSEAU T A,FOX C W.The adaptive significance of maternal effects[J].Trends in Ecology & Evolution,1998,13(10):403-407.
[2] 徐良梅.母体日粮低能量和五味子提取物对肉仔鸡肉质影响的研究 [D].博士学位论文.哈尔滨:东北农业大学,2008.
[3] 闫俊书.日粮蛋白质营养对肉鸡肉质性状的母体效应及其机制的研究 [D].博士学位论文.哈尔滨:东北农业大学,2009.
[4] 徐良梅,陈志辉,李锋,等.母体日粮低能量对后代肉仔鸡生产性能、胴体品质和肉质的影响[J].动物营养学报,2010,22(4):894-903.
[5] 曾灼祥.母鸡日粮蛋白水平对后代肉质和蛋白功能特性的影响 [D].硕士学位论文.南京:南京农业大学,2006.
[6] 李锋.肉种母鸡产蛋期限饲对子代肌纤维发育的影响及其机理研究 [D].博士学位论文.哈尔滨:东北农业大学,2010.
[7] REHFELDT C,NISSEN P M,KUHN G,et al.Effects of maternal nutrition and porcine growth hormone treatment during gestation on endocrine and metabolic factors in sows,fetuses and pigs,skeletal muscle development,and postnatal growth[J].Domestic Animal Endocrinology,2004,27(3):267-285.
[8] 中华人民共和国农业部.NY/T 33-2004中国肉鸡饲养标准[S].北京:中国农业出版社,2004.
[9] 魏忠义.家禽生产学[M].北京:中国农业出版社,1999:154-155.
[10] PINCHASOV Y.Relationship between the weight of hatching eggs and subsequent early performance of broiler chicks[J].British Poultry Science,1991,32:109-115.
[11] ENTING H,BOERSMA W J A,CORNELISSEN J B W J,et al.The effect of low-density broiler breeder diets on performance and immune status of their offspring[J].Poultry Science,2007,86:282-290.
[12] 田博,黄芳芳,徐良梅,等.饲粮不同能量水平对产蛋初期肉种鸡产蛋性能、蛋品质、蛋组分的影响[J].动物营养学报,2012,24(2):327-333.
[13] KENNEDY G C.The role of depot fat in the hypothalamic control of food intake in the rat[J].Proceedings of Royal Society Version B,1953,140:578-592.
[14] 方立超,宋代军,阚宁,等.饲料能量和蛋白水平对肉鸡肉质的影响[J].西北农业学报,2002,15(3):98-104.
[15] 单安山,李锋.鸡母体营养对子代生长发育和肉质的影响[J].东北农业大学学报,2012,43(3):1-14.
[16] 郭锋,李同树.饲料营养与鸡肉品质[J]畜禽业,2003(2):32-34.
[17] FLETCHER D L.Relationship of breast meat color variation to muscle pH and texture[J].Poultry Science,1995,74:120.(Abstr.)
[18] 戴四发,闻爱友,王立克,等.肉仔鸡肌肉色泽与品质相关性研究[J].中国农业大学学报,2007,12(1):61-64.
[19] BARBUT S.Problem of pale soft exudative meat in broiler chickens[J].British Poultry Science,1997,38:355-358.
[20] ALLEN C D,FLETCHER D L,NORTHCUTT J K,et al.The relationship of broiler breast color to meat quality and shelf-life[J].Poultry Science,1998,77:361-366.
[21] SAVELL J W,MUELLER S L,BAIRD B E.The chilling of carcasses[J].Meat Science,2005,70:449-459.
[22] 陈代文,张克英,胡祖禹.猪肉品质特征的形成原理[J].四川农业大学学报,2002(3):60-66.
[23] JENSEN O,JENSEN J F,STAERK B.Quality of meat from "1983-chickens" and from "1953-chickens"[J].Beretning fra Statens Husdyrbrugsforsog,1984,561:33.
[24] 陈宽维,李慧芳,张学余,等.肉鸡肌纤维与肉质关系研究[J].中国畜牧杂志,2002,38(6):6-7.
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