Net Protein Requirement of Dorper and Hu Crossbred F1 Ewe Lambs Aged 4 to 6 Months

NIE Haitao; XIAO Shenhua; LAN Shan; ZHANG Hao; WANG Ziyu; WANG Feng

doi:10.3969/j.issn.1006-267x.2015.01.013

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 1: 93 - 102

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.01.013

Ruminant Nutrition

Net Protein Requirement of Dorper and Hu Crossbred F₁ Ewe Lambs Aged 4 to 6 Months

NIE Haitao ,
XIAO Shenhua ,
LAN Shan ,
ZHANG Hao ,
WANG Ziyu ,
WANG Feng

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1. Jiangsu Engineering Technology Research Center of Meat Sheep & Goat Industry, Nanjing Agricultural University, Nanjing 210095, China;
2. Research Center of Haimen Goats, Nanjing Agricultural University, Nanjing 210095, China

Received date: 2014-07-04

Online published: 2015-01-10

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Abstract

This study was conducted to investigate the protein metabolism rules and determine the net protein requirement of Dorper and Hu crossbred F₁ ewe lambs aged 4 to 6 months. Forty two four-month-old Dorper and Hu crossbred F₁ ewe lambs [(35.68±1.68) kg] were used, comparative slaughter trail (n=30) and digestive and metabolic trail (n=12) were conducted, and factorial method was used to explore the method of predicting net protein requirement for maintenance and growth. Comparative slaughter trail: on day 1 of experimental period, six ewes were randomly chosen and killed (slaughter batch A, n=6), the rest 24 ewes were divided into 3 groups, which were ad libitum (AL) group (n=12), low-restricted (LR) group (n=6) and high-restricted group (HR, n=6). When the average body weight (BW) of ewes in AL group reached 42 kg, six from twelve ewes in AL group were chosen and killed (slaughter batch B, n=6), when the rest 6 ewes in AL group reached 50 kg of average BW, ewes in AL, LR and HR groups were killed as slaughter batches C, D and E (n=6), respectively. Digestive and metabolic trail: twelve ewes were divided into three groups (n=4) the same as comparative slaughter trial. The trial included 7 days for adaptation and 5 days for formal trial. The results showed as follows: endogenous nitrogen loss of Dorper and Hu crossbred F₁ ewe lambs aged 4 to 6 months was 261 mg/kg SBW^0.75 (SBW=shrunk BW), and it corresponded to net protein for maintenance of 1.63 g/kg SBW^0.75. Ewes with 35 to 50 kg BW and ADG ranging from 200 to 300 g/d had net protein requirement for growth from 9.83 to 25.08 g/d. In conclusion, models for predicting net protein requirements for maintenance and growth of Dorper and Hu crossbred F₁ ewe lambs are set in the experiment using retained nitrogen and nitrogen intake, and body protein content and empty BW, respectively.

Key words： Dorper sheep; Hu sheep; crossed F₁; ewe lambs; net protein requirement

Cite this article

NIE Haitao , XIAO Shenhua , LAN Shan , ZHANG Hao , WANG Ziyu , WANG Feng . Net Protein Requirement of Dorper and Hu Crossbred F₁ Ewe Lambs Aged 4 to 6 Months[J]. Chinese Journal of Animal Nutrition, 2015 , 27(1) : 93 -102 . DOI: 10.3969/j.issn.1006-267x.2015.01.013

References

[1] NRC.Nutrient requirements of sheep[S].Washington,D.C.:National Academies Press,1985.

[2] NRC.Nutrient requirements of small ruminants:sheep,goats,cervids,and new world camelids[S].Washington,D.C.:National Academies Press,2007.

[3] ARC.The nutrient requirements of ruminant livestock[S].Slough:Commonwealth Agricultural Bureaux,1980.

[4] AFRC.Energy and protein requirements of ruminants[S].Wallingford:CAB International,1993.

[5] CSIRO.Nutrient requirements of domesticated ruminants[S].Melbourne:Commonwealth Scientific and Industrial Research Organization Publishing,2007.

[6] 刘洁,刁其玉,邓凯东.肉用羊营养需要及研究方法研究进展[J].中国草食动物,2010,30(3):67-70.

[7] 中华人民共和国农业部.肉羊饲养标准NY/T 815—2004[S].北京:中国农业出版社,2004.

[8] 包付银.波尔×隆林杂交育成羊育肥期能量和蛋白质营养需要的研究[D].硕士学位论文.南宁:广西大学,2007.

[9] 梁贤威,杨炳壮,包付银,等.波尔山羊×隆林杂交羔羊育肥期能量和蛋白质营养需要的研究[J].中国畜牧兽医,2008,35(6):13-17.

[10] 杨维仁,杨在宾,李凤双,等.小尾寒羊泌乳期蛋白质需要量及其代谢规律的研究[J].动物营养学报,1994,9(4):39-43.

[11] 杨在宾,贾志海,于玲玲,等.杂种肉羊生长期能量需要量及其代谢规律研究[J].中国畜牧杂志,2004,40(7):18-19.

[12] 杨在宾,李凤双,杨维仁,等.小尾寒羊空怀母羊能量维持需要及其代谢规律研究[J].动物营养学报,1996,8(1):29-33.

[13] 杨在宾,李凤双,张崇玉,等.大尾寒羊泌乳期母羊能量需要量及其代谢规律研究[J].中国养羊,1994(3):18-21.

[14] 杨在宾,杨维仁,张崇玉,等.大尾寒羊生长期能量需要量及代谢规律研究[J].山东农业大学学报:自然科学版,1999,30(2):97-103.

[15] 许贵善.20-35kg杜寒杂交羔羊能量与蛋白质需要量参数的研究[D].博士学位论文.北京:中国农业科学院,2013.

[16] 许贵善,刁其玉,纪守坤,等.20-35kg杜寒杂交公羔羊能量需要参数[J].中国农业科学,2012,45(24):5082-5090.

[17] 许贵善,刁其玉,纪守坤,等.20-35kg杜寒杂交公羔羊能量需要参数的研究[C]//中国畜牧兽医学会动物营养学分会第十一次全国动物营养学术研讨会论文集.北京:中国农业科学技术出版社,2012.

[18] 王鹏.肉用公羔生长期 (20-35kg)能量和蛋白质需要量研究[D].硕士学位论文.保定:河北农业大学,2011.

[19] 杜飞.20-35kg萨福克×阿勒泰杂交母羊能量需要量的研究[D].硕士学位论文.武汉:华中农业大学,2012.

[20] 聂海涛,施彬彬,王子玉,等.杜泊羊和湖羊杂交F₁代公羊能量及蛋白质的需要量[J].江苏农业学报,2012,28(2):344-350.

[21] 聂海涛,游济豪,王昌龙,等.育肥中后期杜泊羊湖羊杂交F₁代公羊能量需要量参数[J].中国农业科学,2012,45(20):4269-4278.

[22] AOAC.Official methods of analysis[S].Washington,D.C.:Association of Official Analytical Chemists Inc.,1990.

[23] VAN SOEST P J,ROBERTSON J B,LEWIS B A.Methods for dietary fiber,neutral detergent fiber,and nonstarch polysaccharides in relation to animal nutrition[J].Journal of Dairy Science,1991,74(10):3583-3597.

[24] SCA.Feeding standards for australian livestock:ruminants[S].Melbourne:CSIRO Publishing,1990.

[25] LUO J,GOETSCH A L,MOORE J E,et al.Prediction of endogenous urinary nitrogen of goats[J].Small Ruminant Research,2004,53(3):293-308.

[26] GALVANI D B,PIRES C C,KOZLOSKI G V,et al.Protein requirements of Texel crossbred lambs[J].Small Ruminant Research,2009,81(1):55-62.

[27] GONZAGA N S,SILVA SOBRINHO A G DA,RESENDE K T DE,et al.Body composition and nutritional requirements of protein and energy for Morada Nova lambs[J].Revista Brasileira de Zootecnia,2005,34(6):2446-2456.

[28] SEVE B,PONTER A A.Nutrient-hormone signals regulating muscle protein turnover in pigs[J].Proceedings of the Nutrition Society,1997,56(2):565-580.

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