Growth curves in purebred and crossbred Limousin cattle

Growth curves in purebred and crossbred Limousin cattle

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The objective was to fit a non-linear model (NLM) to evaluate the growth curve in purebred (PB) Limousin cattle and in five degrees of crossbreeding (DCBs: 1/2, 3/4, 7/8, 15/16, 31/32 Limousin). Live weight, the birth weight interval at 500 d of age, was analyzed. Four NLMs were evaluated: Brody, Bertalanffy, Gompertz, and logistic. Growth parameters were estimated: adult weight (ADW); growth rate (GR); age (AIP; months) and weight (WIP; kg) at inflection point; age (months; A50M) to reach 50 % maturity and degree of maturity at 15 mo (DM15). The growth curve in DCB was characterized using the NLM selected for BP. The best-fitting model was Bertalanffy. The ADW for purebred (PB) males was 566.1, for crossbred (CB) males it was in the range of 446.9 to 527.4; for CB females it was in the range of 374.5 to 419.9, and for PB females, it was 443.0. The NLMs exhibited correlations below -0.75 between ADW and GR. In PB heifers, AIP was estimated at 3.7, and WIP, at 131.2; in CB heifers, AIP and WIP were in the ranges of 2.9 to 3.7 and 110.9 to 124.4, respectively. A50M for PB females was 10.6, and for CB females, within the range of 8.9 to 10.5. DM15 for CB females, the average was 90.5 %, and 87.9 % for PB females. PB males reach A50M at the age of 13 mo.

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Main Authors: Domínguez-Viveros, Joel, Reyes-Ceron, Antonio, Aguirre-Calderón, Carlos Enrique, Martínez-Rocha, Ricardo, Luna-Palomares, Carlos, Aguilar-Palma, Nelson
Format: Digital revista
Language:spa
eng
Published: Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2023
Online Access:https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286
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spelling rev-remexcp-article62862023-04-03T19:17:37Z Growth curves in purebred and crossbred Limousin cattle Curvas de crecimiento en bovinos Limousin de raza pura y cruzados Domínguez-Viveros, Joel Reyes-Ceron, Antonio Aguirre-Calderón, Carlos Enrique Martínez-Rocha, Ricardo Luna-Palomares, Carlos Aguilar-Palma, Nelson Bos Taurus; Crossover; Growth parameters; Heterosis; Nonlinear models Modelos no lineales; Parámetros de crecimiento; Bos Taurus; Cruzamiento; Heterosis The objective was to fit a non-linear model (NLM) to evaluate the growth curve in purebred (PB) Limousin cattle and in five degrees of crossbreeding (DCBs: 1/2, 3/4, 7/8, 15/16, 31/32 Limousin). Live weight, the birth weight interval at 500 d of age, was analyzed. Four NLMs were evaluated: Brody, Bertalanffy, Gompertz, and logistic. Growth parameters were estimated: adult weight (ADW); growth rate (GR); age (AIP; months) and weight (WIP; kg) at inflection point; age (months; A50M) to reach 50 % maturity and degree of maturity at 15 mo (DM15). The growth curve in DCB was characterized using the NLM selected for BP. The best-fitting model was Bertalanffy. The ADW for purebred (PB) males was 566.1, for crossbred (CB) males it was in the range of 446.9 to 527.4; for CB females it was in the range of 374.5 to 419.9, and for PB females, it was 443.0. The NLMs exhibited correlations below -0.75 between ADW and GR. In PB heifers, AIP was estimated at 3.7, and WIP, at 131.2; in CB heifers, AIP and WIP were in the ranges of 2.9 to 3.7 and 110.9 to 124.4, respectively. A50M for PB females was 10.6, and for CB females, within the range of 8.9 to 10.5. DM15 for CB females, the average was 90.5 %, and 87.9 % for PB females. PB males reach A50M at the age of 13 mo. El objetivo fue el ajuste de un modelo no lineal (MNL) para evaluar la curva de crecimiento en bovinos Limousin, en pureza de raza (PRZ) y cinco grados de cruzamiento (GPZ; 1/2, 3/4, 7/8, 15/16, 31/32 de Limousin). Se analizó el peso vivo, el intervalo de peso al nacer a 500 días de edad. Se evaluaron cuatro MNL: Brody, Bertalanffy, Gompertz y logístico. Se estimaron parámetros de crecimiento: peso adulto (PAD); tasa de crecimiento (TAC); edad (EPI; meses) y peso (PPI; kg) al punto de inflexión; edad (meses; E50M) para alcanzar 50% de madurez y madurez a 15 meses (GM15). Con el MNL seleccionado en PRZ se caracterizó la curva de crecimiento en GPZ. El modelo de mejor ajuste fue Bertalanffy. El PAD para machos PRZ fue 566.1, para GPZ estuvo en el intervalo de 446.9 a 527.4; para hembras, en GPZ estuvo en el intervalo de 374.5 a 419.9, en PRZ fue 443.0. Los MNL presentaron correlaciones por debajo de -0.75 entre PAD y TAC. En vaquillas de PRZ, EPI se estimó a 3.7 con 131.2 para PPI; en GPZ, EPI y PPI estuvieron en los intervalos de 2.9 a 3.7 y 110.9 a 124.4, respectivamente. E50M para hembras, en PRZ fue a 10.6 y para GPZ en el intervalo de 8.9 a 10.5. GM15 para hembras, en GPZ el promedio fue 90.5 % en PRZ fue de 87.9 %. Los machos en PRZ alcanzan E50M a partir de 13 meses. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias 2023-04-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf application/pdf text/html https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286 10.22319/rmcp.v14i2.6286 Revista Mexicana de Ciencias Pecuarias; Vol. 14, Núm. 2 (2023): Abril-Junio; 412-422 Revista Mexicana de Ciencias Pecuarias; Vol. 14, Núm. 2 (2023): Abril-Junio; 412-422 2448-6698 2007-1124 spa eng https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286/5063 https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286/5064 https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286/5133 https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/downloadSuppFile/6286/2757 https://creativecommons.org/licenses/by-nc-sa/4.0
institution INIFAP
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country México
countrycode MX
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databasecode rev-remexcp
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libraryname Biblioteca INIFAP
language spa
eng
format Digital
author Domínguez-Viveros, Joel
Reyes-Ceron, Antonio
Aguirre-Calderón, Carlos Enrique
Martínez-Rocha, Ricardo
Luna-Palomares, Carlos
Aguilar-Palma, Nelson
spellingShingle Domínguez-Viveros, Joel
Reyes-Ceron, Antonio
Aguirre-Calderón, Carlos Enrique
Martínez-Rocha, Ricardo
Luna-Palomares, Carlos
Aguilar-Palma, Nelson
Growth curves in purebred and crossbred Limousin cattle
author_facet Domínguez-Viveros, Joel
Reyes-Ceron, Antonio
Aguirre-Calderón, Carlos Enrique
Martínez-Rocha, Ricardo
Luna-Palomares, Carlos
Aguilar-Palma, Nelson
author_sort Domínguez-Viveros, Joel
title Growth curves in purebred and crossbred Limousin cattle
title_short Growth curves in purebred and crossbred Limousin cattle
title_full Growth curves in purebred and crossbred Limousin cattle
title_fullStr Growth curves in purebred and crossbred Limousin cattle
title_full_unstemmed Growth curves in purebred and crossbred Limousin cattle
title_sort growth curves in purebred and crossbred limousin cattle
description The objective was to fit a non-linear model (NLM) to evaluate the growth curve in purebred (PB) Limousin cattle and in five degrees of crossbreeding (DCBs: 1/2, 3/4, 7/8, 15/16, 31/32 Limousin). Live weight, the birth weight interval at 500 d of age, was analyzed. Four NLMs were evaluated: Brody, Bertalanffy, Gompertz, and logistic. Growth parameters were estimated: adult weight (ADW); growth rate (GR); age (AIP; months) and weight (WIP; kg) at inflection point; age (months; A50M) to reach 50 % maturity and degree of maturity at 15 mo (DM15). The growth curve in DCB was characterized using the NLM selected for BP. The best-fitting model was Bertalanffy. The ADW for purebred (PB) males was 566.1, for crossbred (CB) males it was in the range of 446.9 to 527.4; for CB females it was in the range of 374.5 to 419.9, and for PB females, it was 443.0. The NLMs exhibited correlations below -0.75 between ADW and GR. In PB heifers, AIP was estimated at 3.7, and WIP, at 131.2; in CB heifers, AIP and WIP were in the ranges of 2.9 to 3.7 and 110.9 to 124.4, respectively. A50M for PB females was 10.6, and for CB females, within the range of 8.9 to 10.5. DM15 for CB females, the average was 90.5 %, and 87.9 % for PB females. PB males reach A50M at the age of 13 mo.
publisher Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias
publishDate 2023
url https://cienciaspecuarias.inifap.gob.mx/index.php/Pecuarias/article/view/6286
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