Morphological characteristics of extensively grazed Blackbelly lambs in the tropics
Abstract
Twelve Blackbelly lambs under extensive grazing were morphologically characterized through linear regression equations and coefficient of determination. The morphological characteristics of the lambs were obtained through the measurement of live weight (LW) and body measurements. Morphological data were adjusted by variable in a linear model using regression analysis, the equation and the coefficient of determination were recorded. In the study it was found that the variables body length (BL; 60.54%), distance between eyes (BE; 55.14%) and tail base circumference (TBC; 6.41%) did not fit the linear model. On the other hand, the variables of LW (96%) and abdominal perimeter (AP; 94%) present the highest coefficient of determination. In conclusion, the linear models fit the behavior of some morphological measurements of Blackbelly lambs under extensive grazing conditions in the tropics.
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Aguilar-Martínez, C.U., Berruecos-Villalobos, J.M., Espinoza-Gutiérrez, B., Segura-Correa, J.C., Valencia-Méndez, J., & Roldán-Roldán, A. 2017. Origen, historia y situación actual de la oveja Pelibuey en México. Tropical and Subtropical Agroecosystems, 20(3), 429-439.
Arredondo, R.V., Macedo, B.R., Molina, C.J., Magaña, A.J., Prado, R.O., García, M.L.J., Herrera, C.A., & Lee, R.H. 2013. Morphological characterization of Pelibuey sheep in Colima, México. Tropical Animal Health and Production, 45(4), 895-900.
Dzib, C.A., Ortiz de Montellano, A., & Torres-Hernández, G. 2011. Variabilidad morfoestructural de ovinos Blackbelly en Campeche, México. Archivos de Zootecnia, 60(232), 1291-1301.
Handiwirawan, E., Noor, R.R., Sumantri, C., & Subandriyo, S. 2011. The differentiation of sheep breed based on the body measurements. Journal of the Indonesian Tropical Animal Agriculture, 36(1), 1-8.
López-Carlos, M.A., Ramírez, R.G., Aguilera-Soto, J.I., Aréchiga, C.F., & Rodríguez, H. 2010. Size and shape analyses in hair sheep ram lambs and its relationships with growth performance. Livestock Science, 131(2-3), 203-211.
Montalvo, M.P., Romualdo, M.J.G., Sierra, V.A., Ortiz, O.J., Hernández, Z.J., & Medrano, H.A. 2009. El ovino Pelibuey en el trópico mexicano. En: Delgado, B.J.V., Nogales, B.S. (eds). Biodiversidad ovina iberoamericana. Caracterización y uso sustentable. Córdova, España. 363–375.
Vilaboa, A.J., Bozzi, R., Díaz, R.P., & Bazzi, L. 2010. Conformación corporal de las razas ovinas Pelibuey, Dorper y Kathadin en el estado de Veracruz, México. Zootecnia Tropical, 28(3), 321-328.
Copyright (c) 2023 Jesus Jahir Nava-Beltrán, Ethel Caterina García y González, Eduardo Daniel Ramírez-García, Maricela Ruiz-Ortega, Félix Jesus Rodríguez-Ramírez, Alfonso Longinos Muñoz-Benítez, Jose Luis Ponce Covarrubias
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