Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-17T17:22:04.394Z Has data issue: false hasContentIssue false
  • English
  • Français

Weight adjustment equation for hair sheep raised in warm conditions

Published online by Cambridge University Press:  09 March 2020

C. J. L. Herbster ,
L. P. Silva Open the ORCID record for L. P. Silva [Opens in a new window] ,
M. I. Marcondes Open the ORCID record for M. I. Marcondes [Opens in a new window] ,
I. F. F. Garcia Open the ORCID record for I. F. F. Garcia [Opens in a new window] ,
R. L. Oliveira Open the ORCID record for R. L. Oliveira [Opens in a new window] ,
L. S. Cabral Open the ORCID record for L. S. Cabral [Opens in a new window] ,
J. G. Souza Open the ORCID record for J. G. Souza [Opens in a new window]  and
E. S. Pereira Open the ORCID record for E. S. Pereira [Opens in a new window]
C. J. L. Herbster
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, Fortaleza60356000, Ceara, Brazil
L. P. Silva
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, Fortaleza60356000, Ceara, Brazil
M. I. Marcondes
Affiliation:
Animal Science Department, Federal University of Viçosa, P.H. Rolfs Avenue, Viçosa36575000, Minas Gerais, Brazil
I. F. F. Garcia
Affiliation:
Animal Science Department, Federal University of Lavras, Lavras37200000, Minas Gerais, Brazil
R. L. Oliveira
Affiliation:
Department of Veterinary Medicine and Animal Science, Federal University of Bahia, 500 Adhemar de Barros Avenue, Salvador40170110, Bahia, Brazil
L. S. Cabral
Affiliation:
Animal Science Department, Federal University of Mato Grosso, 2367, Fernando Correia da Costa Avenue, Cuiaba780609000, Mato Grosso, Brazil
J. G. Souza
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, Fortaleza60356000, Ceara, Brazil
E. S. Pereira*
Affiliation:
Animal Science Department, Federal University of Ceara, 2977, Mister Hull Avenue, Fortaleza60356000, Ceara, Brazil
*
†E-mail: elzania@hotmail.com
Get access

Abstract

To estimate the nutritional requirements of hair sheep, knowledge about the animal’s weight and its relationships with growth performances is essential. A study was carried with the objective to establish the relationships between BW, fasting BW (FBW), empty BW (EBW), average daily gain (ADG) and empty BW gain (EBWG) for hair sheep in growing and finishing phases in Brazilian conditions. Databases were obtained from 32 studies, for a total of 1145 observations; there were 3 sex classes (non-castrated male, castrated male and female) and 2 feeding systems (pasture and feedlot). The most representative breeds in the database were Santa Ines (n = 473), Morada Nova (n = 70) and Brazilian Somali (n = 47). The other animals in the database were crossbreeds (n = 555). The FBW (kg), EBW and EBWG (kg/day) were estimated according to linear regression. A random coefficient model was adopted, considering the study as a random effect and including the possibility of covariance between the slope and the intercept. The coefficients obtained from the linear regression of the FBW against the BW, EBW against the FBW and EBWG against the ADG did not differ between sex class (P > 0.05) and genotype (P > 0.05). The equations generated to estimate FBW from the BW, EBW from the FBW and EBWG from the ADG are as follows: FBW = −0.5470 (±0.2025) + 0.9313(±0.019) × BW, EBW = −1.4944 (±0.3639) + 0.8816 (±0.018) × FBW and EBWG = 0.906 (±0.019) × ADG, respectively. The low mean squared error values found in the cross-validation confirmed the reliability of these equations. Considering a sheep with a BW of 30 kg and a 100 g ADG, the estimated FBW, EBW and EBWG calculated using the generated equations are 27, 22.65 and 0.090 kg, respectively. In conclusion, the generated equations can be used in growing hair sheep. The validation procedure applied to the generated equations showed that its use for hair sheep seems to be appropriate.

Keywords

empty body weightgrowingmathematical modelspredictionweight gain
Type
Research Article
Information
animal , Volume 14 , Issue 8 , August 2020 , pp. 1718 - 1723
Copyright
© The Animal Consortium 2020

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Araújo, TLAC, Pereira, ES, Mizubuti, IY, Campos, ACN, Pereira, MWF, Heinzen, EL, Magalhães, HCR, Bezerra, LR, Silva, LP and Oliveira, RL 2017. Effects of quantitative feed restriction and sex on carcass traits, meat quality and meat lipid profile of Morada Nova lambs. Journal of Animal Science and Biotechnology 8, 46.CrossRefGoogle ScholarPubMed
Berg, RT, Andersen, BB and Liboriussen, T 1978. Growth of bovine tissues. Genetic influences on growth patterns of muscle, fat and bone in young bulls. Animal Science 26, 245–258.CrossRefGoogle Scholar
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
Canty, A and Ripley, BD 2017. Boot: bootstrap R (S-PLUS) functions. R package version 1.3-19. Retrieved on 27 April 2019 from https://cran.rproject.org/web/packages/boot/index.html.Google Scholar
Chay-Canul, AJ, Espinoza-Hernandez, JC, Ayala-Burgos, AJ, Magaña-Monforte, JG, Aguilar-Perez, CF, Chizzotti, ML, Tedeschi, LO and Ku-Vera, JC 2014. Relationship of empty body weight with shrunken body weight and carcass weights in adult Pelibuey ewes at different physiological states. Small Ruminant Research 117, 10–14.CrossRefGoogle Scholar
Costa, MRGF, Pereira, ES, Silva, AMA, Paulino, PVR, Mizubutti, 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, 206–213.CrossRefGoogle Scholar
Davison, AC and Hinkley, DV 1997. Bootstrap methods and their applications. Cambridge University Press, Cambridge, UK.CrossRefGoogle Scholar
Fox, DG, Dockerty, TR, Johnson, RR and Preston, RL 1976. Relationship of empty body weight to carcass weight in beef cattle. Journal of Animal Science 43, 566–568.CrossRefGoogle Scholar
Freetly, HC, Nienaber, JA and Brown-Brandl, TM 2002. Relationship between aging and nutritionally controlled growth rate on heat production of ewe lambs. Journal of Animal Science 80, 2759–2763.Google ScholarPubMed
Gionbelli, MP, Duarte, MS, Valadares Filho, SC, Detmann, E, Chizzotti, ML, Rodrigues, FC, Zanetti, D, Gionbelli, TRS and Machado, MG 2015. Achieving body weight adjustments for feeding status and pregnant or non- pregnant condition in beef cows. PLoS ONE 10, e0112111.CrossRefGoogle ScholarPubMed
Jesse, GW, Thompson, GB, Clark, JL, Hedrick, HB and Weimer, KG 1976. Effects of ration energy and slaughter weight on composition of empty body and carcass gain of beef cattle. Journal of Animal Science 43, 418–425.CrossRefGoogle Scholar
Koch, RM, Schleicher, EW and Arthaud, VH 1958. The accuracy of weight and gains of beef cattle. Journal of Animal Science 17, 604–611.CrossRefGoogle Scholar
Maindonald, JH and Braun, WJ 2015. DAAG: data analysis and graphics Using R. R package version 1.22. Retrieved on 12 June 2019 from https://cran.r-project.org/web/packages/DAAG/index.html.Google Scholar
Marcondes, MI, Chizzotti, ML, Valadadres Filho, SC, Gionbelli, MP, Paulino, PVR and Paulino, MF 2010. Nutrients requirements for beef cattle. Nutrients requirements of pure and crossbred zebu – Br Corte, pp. 89–96. Suprema Gráfica Ltda, Viçosa, MG, Brasil.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
Owens, FN, Gill, DR, Secrist, DS and Coleman, SW 1995. Review of some aspects of growth and development of feedlot cattle. Journal of Animal Science 73, 3152–3172.CrossRefGoogle ScholarPubMed
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.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 11, 2165–2174.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, 75–83.CrossRefGoogle Scholar
Regadas Filho, JGL, Pereira, ES, Pimentel, PG, Villarroel, ABS, Medeiros, AN and Fontenele, RM 2013. Body composition and net energy requirements for Santa Ines lambs. Small Ruminant Research 109, 107–112.CrossRefGoogle Scholar
Robelin, J and Geay, Y 1984. Body composition of cattle as affected by physiological status, breed, sex and diet. In Herbivore nutrition in the subtropics and tropics (ed. Glichrist, FMC and Mackie, RI), pp. 525–547. The Science Press Ltda, Johannesburg, South Africa.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 and Production 48, 87–94.CrossRefGoogle ScholarPubMed
Rohr, K and Daenicke, R 1984. Nutritional effects on the distribution of live weight as gastrointestinal tract fill and tissue components in growing cattle. Journal of Animal Science 58, 753–765.CrossRefGoogle 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
Simon, JL 1997. Resampling: the new statistics. Resampling Stats, Arlington, VA, USA.Google Scholar
Tedeschi, LO, Cannas, A and Fox, DG 2010. A nutrition mathematical model to account for dietary supply and requirements of energy and other nutrients for domesticated small ruminants: the development and evaluation of the Small Ruminant Nutrition System. Small Ruminant Research 89, 174–184.CrossRefGoogle Scholar
Valadares Filho, SC, Costa e Silva, LF, Gionbelli, MP, Rotta, PP, Marcondes, MI, Chizzotti, ML and Prados, LF 2016. Nutrients requirements of pure and crossbred zebu- BR CORTE. Suprema Gráfica Ltda, Viçosa, MG, Brasil.CrossRefGoogle Scholar
Van Soest, PJ 1994. Nutritional ecology of the ruminants, 2th edition. Cornell University Press, Ithaca, NY, USA.CrossRefGoogle Scholar
Whiteman, JV, Loggins, PF, Chambers, D, Pope, LS and Stephens, DF 1954. Some sources of error in weighing steers off grass. Journal of Animal Science 13, 832–842.CrossRefGoogle Scholar
Williams, CB, Keele, JW and Waldo, DR 1992. Computer model to predict empty body weight in cattle from diet and animal characteristics. Journal of Animal Science 70, 3215–3222.CrossRefGoogle ScholarPubMed
Zinn, RA 1990. Influence of time of day on live weight measurements for feedlot steers. Journal of Animal Science 68, 915–918.CrossRefGoogle Scholar
Supplementary material: File

Herbster et al. supplementary material

Herbster et al. supplementary material

Download Herbster et al. supplementary material(File)
File 22.8 KB