Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz

The purpose of this trial was to check if early weaned calf growth delay is due to stress or inadequate feeding. In 4 successive years, assays of 120 days each were carried out, using in total 120 half-bred Zebu calves (2 months old) grazed on natural pasture. Sixty animals were controls fed on mate...

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Autor principal: Coppo, José Antonio
Formato: Artículo
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias 2022
Materias:
Ternero cruza cebú
Ganancia de peso
Alteraciones bioquímicas
Estrés
Hiponutrición
Half-bred Zebu calf
Liveweight gain
Biochemical alterations
Stress
Malnutrition
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/49219
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-49219
record_format dspace
spelling I48-R184-123456789-492192024-10-23T10:48:24Z Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz Multivariate analysis about causes of growth delay in early weaned calves Coppo, José Antonio Ternero cruza cebú Ganancia de peso Alteraciones bioquímicas Estrés Hiponutrición Half-bred Zebu calf Liveweight gain Biochemical alterations Stress Malnutrition The purpose of this trial was to check if early weaned calf growth delay is due to stress or inadequate feeding. In 4 successive years, assays of 120 days each were carried out, using in total 120 half-bred Zebu calves (2 months old) grazed on natural pasture. Sixty animals were controls fed on maternal milk (C), and other 60 made up the experimental group (E), which was submitted to early weaning and supplemented with balanced food. Weightings and blood extractions were made in days 0, 7, 14, 21, 28, 60, 90 and 120. Hematological and biochemical determinations (42 parameters) included stress and malnutrition indicators, which were evaluated by radio-immune-assay, chemoluminiscency, spectrophotometry, electrophoresis, and electronic particle recount. Such procedures generated more than 40,000 data, which were statistically processed by multivariate techniques, to eliminate the additive effect of random intervention probability (alpha error), characteristic from univariate methods that comprise numerous dependent variables. Variables that obtained significant differences for treatment and/or time effects in repeated measures univariate techniques, were selected for analysis of principal components. Four orthogonal supervariables, susceptible to stress, malnutrition and ontogeny, were created. Weight gains were 79.9 kg (666 g/animal/day) in C, and 61.6 kg (513 g/animal/day) in E. Variations of cortisol, aldosterone, fructosamine, glucose, sodium, potassium, leukocytes, gamma globulins and enzymes suggested absence of stress, examined under an ontogenic frame. On the other hand, decrease of protein, carbohydrate, lipid, and mineral nutritional indicators, revealed malnutrition in E. Selected principal components indicated that most of total variance was due to malnutrition and ontogeny, but not to stress. It is important to develop more appropriate balanced supplements for early weaned calves. 2022-07-12T20:59:06Z 2022-07-12T20:59:06Z 2007-01-01 Artículo Coppo, José Antonio., 2007. Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz. Revista Veterinaria. Corrientes: Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias, vol. 18, no. 1, p. 37-45. ISSN 1669-6840. https://revistas.unne.edu.ar/index.php/vet/article/view/1922 1668-4834 http://repositorio.unne.edu.ar/handle/123456789/49219 spa https://revistas.unne.edu.ar/index.php/vet/article/view/1922 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 37-45 application/pdf Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias Revista Veterinaria Revista Veterinaria, 2007, vol. 18, no. 1, p. 37-45.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Español
topic Ternero cruza cebú
Ganancia de peso
Alteraciones bioquímicas
Estrés
Hiponutrición
Half-bred Zebu calf
Liveweight gain
Biochemical alterations
Stress
Malnutrition
spellingShingle Ternero cruza cebú
Ganancia de peso
Alteraciones bioquímicas
Estrés
Hiponutrición
Half-bred Zebu calf
Liveweight gain
Biochemical alterations
Stress
Malnutrition
Coppo, José Antonio
Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
topic_facet Ternero cruza cebú
Ganancia de peso
Alteraciones bioquímicas
Estrés
Hiponutrición
Half-bred Zebu calf
Liveweight gain
Biochemical alterations
Stress
Malnutrition
description The purpose of this trial was to check if early weaned calf growth delay is due to stress or inadequate feeding. In 4 successive years, assays of 120 days each were carried out, using in total 120 half-bred Zebu calves (2 months old) grazed on natural pasture. Sixty animals were controls fed on maternal milk (C), and other 60 made up the experimental group (E), which was submitted to early weaning and supplemented with balanced food. Weightings and blood extractions were made in days 0, 7, 14, 21, 28, 60, 90 and 120. Hematological and biochemical determinations (42 parameters) included stress and malnutrition indicators, which were evaluated by radio-immune-assay, chemoluminiscency, spectrophotometry, electrophoresis, and electronic particle recount. Such procedures generated more than 40,000 data, which were statistically processed by multivariate techniques, to eliminate the additive effect of random intervention probability (alpha error), characteristic from univariate methods that comprise numerous dependent variables. Variables that obtained significant differences for treatment and/or time effects in repeated measures univariate techniques, were selected for analysis of principal components. Four orthogonal supervariables, susceptible to stress, malnutrition and ontogeny, were created. Weight gains were 79.9 kg (666 g/animal/day) in C, and 61.6 kg (513 g/animal/day) in E. Variations of cortisol, aldosterone, fructosamine, glucose, sodium, potassium, leukocytes, gamma globulins and enzymes suggested absence of stress, examined under an ontogenic frame. On the other hand, decrease of protein, carbohydrate, lipid, and mineral nutritional indicators, revealed malnutrition in E. Selected principal components indicated that most of total variance was due to malnutrition and ontogeny, but not to stress. It is important to develop more appropriate balanced supplements for early weaned calves.
format Artículo
author Coppo, José Antonio
author_facet Coppo, José Antonio
author_sort Coppo, José Antonio
title Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
title_short Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
title_full Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
title_fullStr Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
title_full_unstemmed Análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
title_sort análisis multivariado de las causas del retraso de crecimiento en terneros de destete precoz
publisher Universidad Nacional del Nordeste. Facultad de Ciencias Veterinarias
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/49219
work_keys_str_mv AT coppojoseantonio analisismultivariadodelascausasdelretrasodecrecimientoenternerosdedesteteprecoz
AT coppojoseantonio multivariateanalysisaboutcausesofgrowthdelayinearlyweanedcalves
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