Evaluation of growth of intact vs castrated Braford calves at different ages

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We compared entire versus castrated male Braford calves, at different ages of castration, with the objective to evaluate this effect on growth by means of the total and daily weight gain. Twenty-eight Braford male suckling calves, were used. Animals were randomly divided into groups of 7 individuals...

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Autores principales: Cappello, J. S., Bernardis, M. C., Juarez, J. O., Capellari, A.
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste 2020
Materias:
Calves
castration
growth
daily weigh
gain
Terneros
castración
crecimiento
ganancia diaria de peso
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/4630
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-4630
record_format ojs
spelling I48-R154-article-46302025-02-12T21:59:17Z Evaluation of growth of intact vs castrated Braford calves at different ages Diferencias de pesos entre terneros Braford enteros y castrados a diferentes edades Cappello, J. S. Bernardis, M. C. Juarez, J. O. Capellari, A. Calves castration growth daily weigh gain Terneros castración crecimiento ganancia diaria de peso We compared entire versus castrated male Braford calves, at different ages of castration, with the objective to evaluate this effect on growth by means of the total and daily weight gain. Twenty-eight Braford male suckling calves, were used. Animals were randomly divided into groups of 7 individuals: C45: castrated at 45 days of age; E45: entire, with 45 days of age; C90: castrated at 90 days of age and E90: entire, with 90 days of age. Individual weights were recorded on day 0 (castration’s day) and then on days 15, 30 and 45. Castration was performed by means of surgery. The studied variables were total gain (GT, kg of live weight) and average daily gain (GMD, kg/day). Descriptive statistics, analysis of variance (ANOVA) and Duncan’s test (p<0.05) were performed, considering as the main effect the age of castration (45 and 90 days), with the intact males as controls. The means for GT were: C45: 34.86 kg; E45: 37.29 kg; C90: 51.14 kg and E90: 44.29 kg. For GMD, they were: C45: 0.58 kg; E45: 0.62 kg; C90: 0.85 kg and E90: 0.74 kg. The ANOVA test showed significant differences for both variables, GT (p=0.0156) and GMD (p=0.0157), with C90 being the higher, considering the other groups. In particular, E90 group obtained intermediate values between C90 and calves of 45 days. Between C45 and E45, no significant differences were found for both variables. We conclude that a recommended castration time should be close to three months of age, since at 45 days of age live weight was more affected by the surgical technique. Se compararon terneros braford machos enteros y castrados, con diferentes edades de esterilización, con el objetivo de evaluar este efecto en el crecimiento mediante la ganancia total y diaria de peso. Se utilizaron 28 terneros al pie de madre en campo natural. Se dividieron aleatoriamente en grupos de 7 individuos: C45: castrados a los 45 días de edad; E45: enteros con 45 días de edad; C90: castrados a los 90 días de edad y E90: enteros con 90 días de edad. Los pesos se registraron individualmente el día 0 (día de la castración) y posteriormente los días 15, 30 y 45. La técnica de castración se realizó por cirugía cruenta. Las variables estudiadas para el peso vivo fueron: ganancia total (GT, kg) y ganancia media diaria (GMD, kg/día). Se obtuvieron estadísticas descriptivas, análisis de varianza (ANOVA) y test de Duncan (p<0,05), tomándose como efecto principal la edad de castración (45 y 90 días), obrando los enteros como testigos. Las medias para GT fueron: C45: 34,86 kg; E45: 37,29 kg; C90: 51,14 kg y E90: 44,29 kg. Para GMD fueron: C45: 0,58 kg; E45: 0,62 kg; C90: 0,85 kg y E90: 0,74 kg. El ANOVA arrojó diferencias significativas para ambas variables: GT (p=0,0156) y GMD (p=0,0157), siendo C90 superior al resto de los grupos. Por su parte, E90 obtuvo valoresintermedios entre C90 y los terneros de 45 días. Entre C45 y E45 no se hallaron diferenciassignificativas en ambas variables. Se concluye que el momento elegido para la castracióndebe ser cercano a los tres meses, ya que a los 45 días el peso vivo resultó más afectado porla cirugía. Universidad Nacional del Nordeste 2020-12-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/4630 10.30972/vet.3114630 Revista Veterinaria; Vol. 31 Núm. 1 (2020); 50-53 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/4630/4324 Derechos de autor 2020 J. S. Cappello, M. C. Bernardis, J. O. Juarez, A. Capellari https://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Calves
castration
growth
daily weigh
gain
Terneros
castración
crecimiento
ganancia diaria de peso
spellingShingle Calves
castration
growth
daily weigh
gain
Terneros
castración
crecimiento
ganancia diaria de peso
Cappello, J. S.
Bernardis, M. C.
Juarez, J. O.
Capellari, A.
Evaluation of growth of intact vs castrated Braford calves at different ages
topic_facet Calves
castration
growth
daily weigh
gain
Terneros
castración
crecimiento
ganancia diaria de peso
author Cappello, J. S.
Bernardis, M. C.
Juarez, J. O.
Capellari, A.
author_facet Cappello, J. S.
Bernardis, M. C.
Juarez, J. O.
Capellari, A.
author_sort Cappello, J. S.
title Evaluation of growth of intact vs castrated Braford calves at different ages
title_short Evaluation of growth of intact vs castrated Braford calves at different ages
title_full Evaluation of growth of intact vs castrated Braford calves at different ages
title_fullStr Evaluation of growth of intact vs castrated Braford calves at different ages
title_full_unstemmed Evaluation of growth of intact vs castrated Braford calves at different ages
title_sort evaluation of growth of intact vs castrated braford calves at different ages
description We compared entire versus castrated male Braford calves, at different ages of castration, with the objective to evaluate this effect on growth by means of the total and daily weight gain. Twenty-eight Braford male suckling calves, were used. Animals were randomly divided into groups of 7 individuals: C45: castrated at 45 days of age; E45: entire, with 45 days of age; C90: castrated at 90 days of age and E90: entire, with 90 days of age. Individual weights were recorded on day 0 (castration’s day) and then on days 15, 30 and 45. Castration was performed by means of surgery. The studied variables were total gain (GT, kg of live weight) and average daily gain (GMD, kg/day). Descriptive statistics, analysis of variance (ANOVA) and Duncan’s test (p<0.05) were performed, considering as the main effect the age of castration (45 and 90 days), with the intact males as controls. The means for GT were: C45: 34.86 kg; E45: 37.29 kg; C90: 51.14 kg and E90: 44.29 kg. For GMD, they were: C45: 0.58 kg; E45: 0.62 kg; C90: 0.85 kg and E90: 0.74 kg. The ANOVA test showed significant differences for both variables, GT (p=0.0156) and GMD (p=0.0157), with C90 being the higher, considering the other groups. In particular, E90 group obtained intermediate values between C90 and calves of 45 days. Between C45 and E45, no significant differences were found for both variables. We conclude that a recommended castration time should be close to three months of age, since at 45 days of age live weight was more affected by the surgical technique.
publisher Universidad Nacional del Nordeste
publishDate 2020
url https://revistas.unne.edu.ar/index.php/vet/article/view/4630
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first_indexed 2025-05-17T05:10:03Z
last_indexed 2025-05-17T05:10:03Z
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