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Energy and protein requirements of Santa Ines lambs, a breed of hair sheep

Published online by Cambridge University Press:  05 June 2017

E. S. Pereira ,
F. W. R. Lima ,
M. I. Marcondes ,
J. P. P. Rodrigues ,
A. C. N. Campos ,
L. P. Silva ,
L. R. Bezerra ,
M. W. F. Pereira  and
R. L. Oliveira
E. S. Pereira
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, 60356000 Fortaleza, Ceara, Brazil
F. W. R. Lima
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, 60356000 Fortaleza, Ceara, Brazil
M. I. Marcondes
Affiliation:
Animal Science Department, Federal University of Viçosa, P.H. Rolfs Avenue, 36575000, Viçosa, Minas Gerais, Brazil
J. P. P. Rodrigues
Affiliation:
Animal Science Department, Federal University of Viçosa, P.H. Rolfs Avenue, 36575000, Viçosa, Minas Gerais, Brazil
A. C. N. Campos
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, 60356000 Fortaleza, Ceara, Brazil
L. P. Silva
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, 60356000 Fortaleza, Ceara, Brazil
L. R. Bezerra
Affiliation:
Department of Animal Science, Federal University of Piaui, Rodovia Bom Jesus-Viana, km 135, 64900000, Bom Jesus, Piaui, Brazil
M. W. F. Pereira
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, 60356000 Fortaleza, Ceara, Brazil
R. L. Oliveira*
Affiliation:
Department of Veterinary Medicine and Animal Science, Federal University of Bahia, 500 Adhemar de Barros Avenue, 40170110, Salvador, Bahia, Brazil
*
†E-mail: ronaldooliveira@ufba.br
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Abstract

An experiment was carried to evaluate the energy and protein requirements for the growth and maintenance of lambs of different sex classes. In all, 38 hair lambs (13.0±1.49 kg initial BW and 2 months old) were allocated in a factorial design with diet restriction levels (ad libitum, 30% and 60% feed restriction) and sex classes (castrated and non-castrated males). Four animals from each sex class were slaughtered at the beginning of the trial as a reference group to estimate the initial empty BW and body composition. The remaining lambs were weighed weekly to calculate BW gain (BWG), and when the animals fed ad libitum reached an average BW of 30 kg, all of the experimental animals were slaughtered. Before slaughter, fasted BW (FBW) was determined after 18 h without feed and water. Feed restriction induced reductions in body fat and energy concentration, whereas water restriction showed the opposite effect, and the protein concentration was not affected. The increase in BW promoted increases in body fat and energy content, and these increases were greater in castrated lambs, whereas the protein content was similar between classes tending to stabilize. The net energy required for gain (NEg) and the net protein required for gain (NPg) were not affected by sex class; therefore, an equation was generated for the combined results of both castrated and non-castrated lambs. The NEg varied from 1.13 to 2.01 MJ/day for lambs with BW of 15 and 30 kg and BWG of 200 g. The NPg varied from 24.57 to 16.33 g/day for lambs with BW of 15 and 30 kg and BWG of 200 g. The metabolizable energy efficiency for gain (kg) was 0.37, and the metabolizable protein efficiency for gain (kpg) was 0.28. The net energy required for maintenance (NEm) and the net requirement of protein for maintenance (NPm) did not differ between castrated and non-castrated lambs, with values of 0.241 MJ/kg FBW0.75 per day and 1.30 g/kg FBW0.75 per day, respectively. The metabolizable energy efficiency for maintenance (km) was 0.60, and the efficiency of metabolizable protein use for maintenance (kpm) was 0.57. Nutritional requirements for growth and maintenance did not differ between castrated and non-castrated lambs. This study emphasizes the importance of updating the tables of international committees and of including data obtained from studies with sheep breeds raised in tropical conditions, with the purpose of improving the productive efficiency of the animals

Keywords

hair lambsmaintenancerestrictionsheepweight gain
Type
Research Article
Information
animal , Volume 11 , Issue 12 , December 2017 , pp. 2165 - 2174
Copyright
© The Animal Consortium 2017 

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References

Agricultural and Food Research Council (AFRC) 1993. Energy and protein requirements of ruminants. CAB International, Wallingford, UK.Google Scholar
Agricultural Research Council 1980. Nutrient requirements of ruminant livestock. CAB International, London.Google Scholar
Association of Official Analytical Chemists (AOAC) 1990. Official methods of Analysis, 15th edition. AOAC, Washington, DC, USA.Google Scholar
Attaix, D, Rémond, D and Savary-Auzeloux, IC 2005. Protein metabolism and turnover. In Quantitative aspects of ruminant digestion and metabolism, 2nd edition (ed. J Dijkstra, JM Forbes and J France), pp. 373–398. CAB International, Wallingford, UK.CrossRefGoogle Scholar
Baldwin, RL, Smith, NE, Taylor, J and Sharp, M 1980. Manipulating metabolic parameters to improve growth rate and milk secretion. Journal of Animal Science 51, 1416–1428.CrossRefGoogle ScholarPubMed
Cannas, A, Tedeschi, LO, Fox, DG, Pell, AN and Van Soest, PJ 2004. A mechanistic model for predicting the nutrient requirements and feed biological values for sheep. Journal of Animal Science 82, 149–169.CrossRefGoogle ScholarPubMed
Chizzotti, ML, Tedeschi, LO and Valadares Filho, SC 2008. A meta-analysis of energy and protein requirements for maintenance and growth of Nellore cattle. Journal of Animal Science 86, 1588–1597.Google Scholar
Commonwealth Scientific and Industrial Research Organization (CSIRO) 2007. Nutrient requirements of domesticated ruminants. CSIRO Publishing, Collingwood, Australia.Google Scholar
Costa, MRG, Pereira, ES, Silva, AMA, Paulino, PVR, Mizubuti, IY, Pimentel, PG, Pinto, AP and Rocha Junior, JN 2013. Body composition and net energy and protein requirements of Morada Nova lambs. Small Ruminant Research 114, 20–25.CrossRefGoogle Scholar
Domingue, BM, Dellow, DW and Barry, TN 1991. The efficiency of chewing during eating and ruminating in goats and sheep. British Journal of Nutrition 65, 355–363.Google Scholar
Ferrell, CL and Jenkins, TG 1998. Body composition and energy utilization by steers of diverse genotypes fed a high-concentrate diet during the finishing period: I. Angus, Belgian Blue, Hereford, and Piedmontese Sires. Journal of Animal Science 76, 637–646.CrossRefGoogle ScholarPubMed
Ferrell, C L, Garrett, WN, Hinman, N and Grichting, G 1976. Energy utilization by pregnant heifers. Journal of Animal Science 42, 937–950.CrossRefGoogle ScholarPubMed
Galvani, DB, Pires, CC, Kozloski, GV and Sanchez, LMB 2009. Protein requirements of Texel crossbred lambs. Small Ruminant Research 81, 55–62.Google Scholar
Galvani, DB, Pires, CC, Kozloski, GV and Wommer, TP 2008. Energy requirements of Texel crossbred lambs. Journal of Animal Science 86, 3480–3490.Google Scholar
Galvani, DB, Pires, AV, Susin, I, Gouvea, VN, Berndt, A, Chagas, LJ, Dorea, JRR, Abdalla, AL and Tedeschi, LO 2014. The energy efficiency of growing ram lambs fed concentrate-based diets with different roughage sources. Journal of Animal Science 92, 250–263.CrossRefGoogle ScholarPubMed
Garrett, WN 1980. Factors influencing energetic efficiency of beef production. Journal of Animal Science 51, 1434–1440.CrossRefGoogle Scholar
Guiroy, PJ, Tedeschi, LO, Fox, DG and Hutcheson, JP 2002. The effects of implant strategy on finished body weight of beef cattle. Journal of Animal Science 80, 1791–1800.Google Scholar
Licitra, G, Hernandez, TM and Van Soest, PJ 1996. Standardization of procedures for nitrogen fractionation of ruminant feeds. Animal Feed Science and Technology 57, 347–358.CrossRefGoogle Scholar
Marcondes, MI, Valadares Filho, SC, Oliveira, IM, Paulino, MF, Paulino, PVR, Detmann, E and Silva, LFC 2011. Exigências de energia de animais Nelore puros e mestiços com as raças Angus e Simental. Revista Brasileira de Zootecnia 40, 872–881.CrossRefGoogle Scholar
National Research Council (NRC) 2000. Nutrient requirements of beef cattle, 7th revised edition. National Academies Press, Washington, DC, USA.Google Scholar
National Research Council (NRC) 2007. Nutrient requirements of small ruminants: sheep, goats, cervids and new world camelids, 1st edition. National Academies Press, Washington, DC, USA.Google Scholar
Oldham, JD 1987. Efficiencies of amino acid utilisation. In Feed evaluation and protein requirement systems for ruminants (ed. Jarrige R. and Alderman G.), pp. 171–186. CEC, Luxembourg.Google Scholar
Pereira, ES, Fontenele, RM, Medeiros, AN, Lopes, RO, Campos, ACN, Heinzen, EL and Bezerra, LR 2016. Requirements of protein for maintenance and growth in ram hair lambs. Tropical Animal Health and Production 48, 1323–1330.Google Scholar
Pereira, ES, Fontenele, RM, Silva, AMA, Oliveira, RL, Ferreira, MRG, Mizubuti, IY, Carneiro, MSS and Campos, ACN 2014. Body composition and net energy requirements of Brazilian Somali lambs. Italian Journal of Animal Science 13, 880–886.Google Scholar
Poczopko, P 1971. Metabolic levels in adult homeoterms. Acta Theriologica 16, 1–21.Google Scholar
Regadas Filho, JGL, Pereira, ES, Pimentel, PG, Villarroel, ABS, Medeiros, NA and Fontenele, RM 2013. Body composition and net energy requirements for Santa Ines lambs. Small Ruminant Research 109, 107–112.CrossRefGoogle Scholar
Regazzi, AJ and Silva, CHO 1996. Teste para verificar a identidade de modelos de regressão. Pesquisa Agropecuária Brasileira 31, 1–17.Google Scholar
Rodrigues, RTS, Chizzotti, ML, Martins, SR, Silva, IF, Queiroz, MAA, Silva, TS, Busato, KC and Silva, AMA 2015. Energy and protein requirements of non-descript breed hair lambs of different sex classes in the semiarid region of Brazil. Tropical Animal Health Production 47, 1–8.Google Scholar
Salah, N, Sauvant, D and Archimède, H 2014. Nutritional requirements of sheep, goats and cattle in warm climates: a meta-analysis. Animal 8, 1439–1447.CrossRefGoogle ScholarPubMed
Valadares Filho, SC, Marcondes, MI, Chizzotti, ML and Paulino, PVR 2010. Nutrient requirements of zebu beef cattle – BR CORTE. Suprema Gráfica Ltda, Viçosa, MG, Brasil.Google Scholar
Van Soest, PJ, Robertson, JB and Lewis, BA 1991. Methods for dietary fiber, neutral-detergent fiber and nonstarch polysaccharides in relation to animal nutrition. Journal Dairy Science 74, 3583–3597.Google Scholar
Weiss, WP 1993. Symposium: Prevailing concepts in energy utilization by ruminants. Predicting energy values of feeds. Journal of Dairy Science 76, 1802–1811.Google Scholar
Wilkerson, A, Klopfenstein, TJ, Britton, RA, Stock, RA and Miller, PS 1993. Metabolizable protein and amino acid requirements of growing cattle. Journal of Animal Science 71, 2777–2784.Google Scholar