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Determination of the mature weight of intact male hair sheep

Published online by Cambridge University Press:  08 March 2022

M. S. Mendes
Affiliation:
Department of Animal Science, Federal University of Ceara, Fortaleza, Ceara, Brazil
R. N. B. Lôbo
Affiliation:
Embrapa Caprinos e Ovinos, Sobral, Ceara, Brazil
C. J. L. Herbster
Affiliation:
Department of Animal Science, Federal University of Ceara, Fortaleza, Ceara, Brazil
J. G. Souza
Affiliation:
Department of Animal Science, Federal University of Ceara, Fortaleza, Ceara, Brazil
J. P. P. Rodrigues
Affiliation:
Institute of Studies of Humid Tropics, Federal University of Southern and Southeastern Para, Xinguara, Para, Brazil
M. I. Marcondes
Affiliation:
Department of Animal Science, Washington State University, Pullman, WA, USA
E. S. Pereira*
Affiliation:
Department of Animal Science, Federal University of Ceara, Fortaleza, Ceara, Brazil
*
Author for correspondence: E. S. Pereira, E-mail: [email protected]

Abstract

The objective of this study is to provide approaches to determine the mature weight of intact male hair sheep using body composition data. To estimate empty body weight (EBW) at maturity, we used information from eight independent studies comprising a total of 250 intact males in growing and finishing phases. The quantitative data used for each animal were body weight (BW), EBW, water-free EBW protein content, water-free EBW fat content, water-free EBW ash content and EBW water content. The water, protein, fat and ash contents in the EBW and water-free EBW were predicted by non-linear regressions. The best model was chosen considering the achievement of convergence and capacity for biological explanation. The standard deviation of the asymptotic EBW was computed using a simulation method based on a Monte Carlo approach. Among the non-linear evaluations, only the allometric function converged with the parameters within the expected biological limits. To estimate mature EBW, only protein and fat were suitable to predict estimates with the capacity to biological explanation. The water and protein contents in the EBW were closely associated. Animal maturity can be estimated mathematically using body composition. Maturity was reached at an EBW of 47.3 and 57.5 kg when protein and fat were used as a predictor, respectively. We conclude that protein is a good predictor of maturity for intact male hair sheep.

Type
Animal Research Paper
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press

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References

Almeida, AK, Resende, KT, Tedeschi, LO, Fernandes, MHMR, Regadas Filho, JGL and Teixeira, IAMA (2016) Using body composition to determine weight at maturity of male and female Saanen goats. Journal of Animal Science 94, 25642571.CrossRefGoogle ScholarPubMed
AOAC (Association of Official Analytical Chemistry) (1990) Official Methods of Analysis, 15th Edn. Washington, DC: AOAC.Google Scholar
Arnold, RN and Bennett, GL (1991) Evaluation of four simulation models of cattle growth and body composition: part I – comparison and characterization of the models. Agricultural Systems 35, 401432.CrossRefGoogle Scholar
BR-CORTE (2016) Nutrient Requirements of Zebu and Crossbred Cattle, 3rd Edn. Viçosa: Suprema Gráfica Ltda.Google Scholar
Brody, S and Lardy, HA (1946) Bioenergetics and growth. The Journal of Physical Chemistry 50, 168169.CrossRefGoogle Scholar
Coleman, SW, Evans, BC and Guenther, JJ (1993) Body and carcass composition of Angus and Charolais steers as affected by age and nutrition. Journal of Animal Science 71, 8695.CrossRefGoogle ScholarPubMed
Costa, MRGF, 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, 206213.CrossRefGoogle Scholar
CSIRO (Commonwealth Scientific and Industrial Research Organization) (2007) Nutrient Requirements of Domesticated Ruminants . Collingwood, VIC: Commonwealth Scientific and Industrial Research Organization.Google Scholar
Fox, DG and Black, JR (1984) A system for predicting body composition and performance of growing cattle. Journal of Animal Science 58, 725739.CrossRefGoogle Scholar
Keele, JW, Williams, CB and Bennett, GL (1992) A computer model to predict the effects of level of nutrition on composition of empty body gain in beef cattle: I. Theory and development. Journal of Animal Science 70, 841.CrossRefGoogle ScholarPubMed
Lôbo, RNB, Villela, LCV, Lobo, AMBO, Passos, JRDS and Oliveira, AAD (2006) Parâmetros genéticos de características estimadas da curva de crescimento de ovinos da raça Santa Inês. Revista Brasileira de Zootecnia 35, 10121019.CrossRefGoogle Scholar
López-Carlos, MA, Ramírez, RG, Aguilera-Soto, JI, Aréchiga, CF and Rodríguez, H (2010) Size and shape analyses in hair sheep ram lambs and its relationships with growth performance. Livestock Science 131, 203211.CrossRefGoogle Scholar
MacNeil, MD and Newman, S (1994) Genetic analysis of calving date in Miles City Line 1 Hereford cattle. Journal of Animal Science 72, 30733079.CrossRefGoogle ScholarPubMed
Marcondes, MI, Tedeschi, LO, Valadares Filho, SC and Gionbelli, MP (2013) Predicting efficiency of use of metabolizable energy to net energy for gain and maintenance of Nellore cattle. Journal of Animal Science 91, 48874898.CrossRefGoogle ScholarPubMed
Marcondes, MI, Tedeschi, LO, Valadares Filho, SC, Silva, LFC and Silva, AL (2016) Using growth and body composition to determine weight at maturity in Nellore cattle. Animal Production Science 56, 11211129.CrossRefGoogle Scholar
Mendes, MS, Souza, JG, Herbster, CJL, Brito Neto, AS, Silva, LP, Rodrigues, JPP, Marcondes, MI, Oliveira, RL, Bezerra, LR and Pereira, ES (2021) Maintenance and growth requirements in male Dorper×Santa Ines lambs. Frontiers in Veterinary Science 8, 574.CrossRefGoogle Scholar
Morand-Fehr, P (1981) Nutrition and feeding of goats: application to temperate climatic condition. In Gall, C (ed.), Goat Production. London: Academic Press, pp. 193232.Google Scholar
NRC (National Research Council) (1996) Nutrient Requirements of Beef Cattle, 7th revised Edn. Washington, DC: The National Academies Press.Google Scholar
NRC (National Research Council) (2000) Nutrient Requirements of Beef Cattle, 7th revised Edn. Washington, DC: The National Academies Press.Google Scholar
NRC (National Research Council) (2007) Nutrient Requirements of Small Ruminants: Sheep, Goats, Cervids and New World Camelids. Washington, DC: The National Academies Press.Google Scholar
Oliveira, AP, Pereira, ES, Pinto, AP, Silva, AMA, Carneiro, MSS, Mizubuti, IY, Ribeiro, ELA, Campos, ACN and Gadelha, CRF (2014) Estimativas dos requisitos nutricionais e utilização do modelo Small Ruminant Nutrition System para ovinos deslanados em condições semiáridas. Semina: Ciências Agrárias 35, 19851998.Google Scholar
Pereira, ES, Fontenele, RM, Silva, AMA, Oliveira, RL, Ferreira, MRG, Mizubuti, YI, Carneiro, MSS and Campos, ACN (2014) Body composition and net energy requirements of Brazilian Somali lambs. Italian Journal of Animal Science 13, 880886.CrossRefGoogle Scholar
Pereira, ES, Lima, FWR, Marcondes, MI, Rodrigues, JPP, Campos, ACN, Silva, LP, Bezerra, LR, Pereira, MWF and Oliveira, RL (2017) Energy and protein requirements of Santa Ines lambs, a breed of hair sheep. Animal: An International Journal of Animal Bioscience 12, 21652174.CrossRefGoogle Scholar
Pereira, ES, Pereira, MWF, Marcondes, MI, Medeiros, AN, Oliveira, RL, Silva, LP, Mizubuti, IY, Campos, ACN, Heinzen, EL, Veras, ASC, Bezerra, LR and Araújo, TLAC (2018) Maintenance and growth requirements in male and female hair lambs. Small Ruminant Research 159, 7583.CrossRefGoogle Scholar
Pereira, GM (2011) Exigências de proteína e energia de carneiros Santa Inês na região semiárida brasileira (PhD thesis). The Federal University of Campina Grande, Patos, Paraíba, Brazil.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, 107112.CrossRefGoogle Scholar
Richards, FJ (1959) A flexible growth function for empirical use. Journal of Experimental Botany 10, 290301.CrossRefGoogle Scholar
Salah, N, Sauvant, D and Archimède, H (2014) Nutritional requirements of sheep, goats and cattle in warm climates: a meta-analysis. Animal: An International Journal of Animal Bioscience 8, 14391447.CrossRefGoogle ScholarPubMed
Sousa, WH, Lôbo, RNB and Morais, OR (2003) Ovinos Santa Inês: estado de arte e perspectivas. Proceedings of the Simpósio Internacional Sobre Caprinos e Ovinos de Corte. João Pessoa, Paraíba, pp. 501–522.Google Scholar
Taylor, CS and Young, GB (1967) Variation in growth and efficiency in twin cattle on constant feeding levels. Animal Production 9, 295311.Google Scholar
Underwood, EJ and Suttle, NF (1999) The Mineral Nutrition of Livestock, 3rd Edn. Wallingford: CAB International.Google Scholar
Wang, CT and Dickerson, GE (1991) A deterministic computer simulation model of life-cycle lamb and wool production. Journal of Animal Science 69, 43124323.CrossRefGoogle ScholarPubMed