Short Communications

Effects of Different Silkworm Excrement Levels in Diets on Growth Performance, Slaughter Performance, Organ Development and Serum Biochemical Indexes of Sheep

Expand
  • 1. College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China;
    2. Thaizhou Helen Sheep Company Limited, Taizhou 2253000, China

Received date: 2014-09-15

  Online published: 2015-03-18

Abstract

This experiment was conducted to evaluate the effects of different silkworm excrement levels in diets on growth performance, slaughter performance, organ development and serum biochemical indexes of sheep. Thirty-two 90-day-old sheep were randomly divided into four groups with eight sheep per group. Sheep in different groups were fed diets with 0 (control), 20% (T20), 30% (T30) and 40% (T40) silkworm excrement, respectively. The experiment lasted for 75 days consisted of a 15-day pre-test period and a 60-day test period. Three sheep in each group were slaughtered at end of the experiment. The results showed as follows: 1) average daily gain (ADG) in T20 and T30 groups was higher than that in control group (P>0.05), and was significantly higher than that in T40 group (P<0.05); average daily feed intake (ADFI) in T20 and T30 groups was significantly lower than that in control group (P<0.05), and feed to gain ratio (F/G) was lower than that in control group (P>0.05), ADFI and F/G were significantly lower than those in T40 group (P<0.05). 2) Dressing percentage in T20 and T30 groups was significantly higher than that in T40 group (P<0.05), and had no significant difference with that in control group (P>0.05); there was no significant difference in carcass weight among control, T20 and T30 groups (P>0.05); eye muscle area and carcass fat content value (GR value) in T20, T30 and T40 groups were significantly higher than those in control group (P<0.05). 3) Heart weight in T20 group was significantly higher than that in control group (P<0.05), and spleen weight in T30 and T20 groups was significantly higher than that in control group (P<0.05). 4) Serum globin content in control group was significantly lower than that in T40 group (P<0.05), serum alkaline phosphatase activity in experimental groups was significantly higher than that in control group (P<0.05). In conclusion, diets supplemented with silkworm excrement can improve average daily gain and dressing percentage, and decrease feed to gain ratio of sheep, the proper supplemental level of silkworm excrement in diet is 20% to 30%, and the optimal level is 20%.

Cite this article

SUN Lisa, ZHAO Rui, CUI Huihui, WANG Mengzhi, YU Lihuai, WANG Hongrong, TAO Xiaojing . Effects of Different Silkworm Excrement Levels in Diets on Growth Performance, Slaughter Performance, Organ Development and Serum Biochemical Indexes of Sheep[J]. Chinese Journal of Animal Nutrition, 2015 , 27(3) : 941 -947 . DOI: 10.3969/j.issn.1006-267x.2015.03.035

References

[1] 柏雪,张艳,郭春华,等.蚕沙作为山羊饲料营养价值的评定[J].饲料研究,2011(4):77-79.

[2] 陈翠玲,陈晓华,赵玮,等.育肥鹅日粮添加蚕沙的试验研究[J].中国科技信息,2007(1):64-67.

[3] 王建科,任淑文,李志,等.利用蚕沙喂猪的试验[J].蚕业科学,2007,33(1):142-146.

[4] 尹永志,郭春华,黄艳玲,等.蚕沙对新西兰兔生产性能、屠宰性能及脏体比值的影响[J].中国饲料,2010(20):23-25.

[5] 郭春华,黄艳玲,马力,等.蚕沙替代精料对乐至黑山羊生长性能的影响[J].中国饲料,2010(16):21-23.

[6] 田斌,关伟伟,杨文剑,等.利用蚕沙替代精料饲养山羊育肥试验[J].畜禽业,2008(4):31-32.

[7] NRC.Nutrient requirements of small ruminants:sheep,goats,cervids and new world camelids[S].10th ed.Washington,D.C.:National Academy Press,2007.

[8] 张丽英.饲料分析及饲料质量检测技术[M].2版.北京:中国农业大学出版社,2003.

[9] 熊本海.国际反刍动物饲料成分及营养价值表[M].北京:中国农业科学技术出版社,2013.

[10] 杨再俊,李胜利,邓磊,等.饲喂全乳和代乳粉对小白牛生长性能和胴体性状的影响[J].中国畜牧杂志,2010,46(1):31-33.

[11] KOLAROVA J,VELISEK J.Determination and assessment of biochemical profile of fish blood (in Czech)[J].Aquaculture Research,2012,29:89-101.

[12] 王晓光.饲草型全混日粮饲用价值评价研究[D].博士学位论文.呼和浩特:内蒙古农业大学,2010.

[13] EVANS E.An evaluation of the relationships between dietary parameters and rumen solid turnover rate[J].Canadian Journal of Animal Science,1981,61(1):97-103.  

[14] 柏雪,郭春华,黄艳玲,等.蚕沙及几种常用粗饲料在山羊瘤胃的降解率[J].四川农业大学学报,2011,29(1):98-102.

[15] DHANDA J S.Evaluation of crossbred goat and sheep production in the tropics[M].London:Longman Group Ltd.,2001.

[16] 贾志海,蔡青和,侯文娟,等.河北坝上地区羔羊肥育及屠宰试验[J].草地学报,2000,8(4):262-266.

[17] 王德芹,王金文,张果平,等.杜泊绵羊与小尾寒羊杂交肥羔肉质特性的研究[J].中国畜牧杂志,2007,43(3):4-6.

[18] 施力光,任有蛇,岳文斌,等.小尾寒羊、特克塞尔羊×小尾寒羊和杜泊×小尾寒羊杂一代羔羊生长发育研究[J].中国畜牧兽医,2008,35(3):133-135.

[19] 赵有璋.羊生产学[M].北京:中国农业出版社,1995.

[20] 杜卫国,鲍毅新,施利强,等.社鼠内脏器官重量和水分含量的季节变化[J].动物学杂志,1999,34(1):23-25.

[21] ANUGWA F O I,VAREL V H,DICKSON J S,et al.Effects of dietary fiber and protein concentration on growth,feed efficiency,visceral organ weights and large intestine microbial populations of swine[J].The Journal of nutrition,1989,119(6):879-886.

[22] 高士争,葛长荣,田允波,等.中草药添加剂对生长肥育猪血液生理生化指标的影响[J].云南农业大学学报,2002,17(2):164-169.

[23] 罗洪明,陈代文.不同蛋白水平对早期断奶仔猪生产性能、血液生化指标的影响[J].饲料研究,2008(8):3-8.

[24] 杨华,傅衍,陈国安.猪血液生化指标与生产性能的关系[J].国外畜牧科技,2001,28(1):34-37.

[25] MELAREN G A,ANDERSON G C,TSAI L E.Level of readily fermentable Carbohydrates and adaptation of lambs to all-urea supplemented rations[J].Journal of Nutrition,1965,87:331-336.

[26] 王秋颖.碱性磷酸酶特性及其应用的研究进展[J].中国畜牧兽医,2011,38(1):157-160.

[27] FERNANDEZ N J,KIDNEY B A.Alkaline phosphatase:beyond the liver[J]. Veterinary Clinical Pathology,2007,36(3):223-233.  
Outlines

/