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Amamantamiento restringido y suplementación sobre los perfiles metabólicos en vacas del sistema doble propósito

Revista MVZ Córdoba (Impact Factor: 0.18).
Source: OAI

ABSTRACT Objective. To evaluate the effect of supplementation with whole cotton seed and the suckling system on the metabolic profiles from calving until the week 14 postpartum. Materials and methods. Four treatments were conformed: T1 with 4 cows supplemented with 2 kg of whole cotton seed and experimental suckling; T2 with 3 cows supplemented with 2 kg of whole cotton seed and traditional suckling; T3 with 3 cows without supplement and experimental suckling; T4 with 3 cows without supplement and traditional suckling. A complete random design with a 2x2 factorial arrangement was used and for the result analysis an ANOVA was used. Results. In the postpartum, the supplemented cows presented highest levels of protein (p<0.05) and cholesterol in blood in the fifteenth period 7; equally highest levels of triglycerides and HDL showed in the fifteenth periods 2 and 4 respectively that the cows non supplemented. There was suckling effect on the protein in the fifteenth periods 3, 6 and 7 (p<0.05); There were bigger in the animals with traditional suckling versus restricted suckling (91.2 vs 63.8; 94.2 vs 71.1 and 95.8 vs 71 g/l, respectively). There was correlation (p<0.05) of treatments on triglycerides during the fifteenth periods 2, 6 and 7. There was not effect (p>0.05) of the treatments on the postpartum reproduction. Conclusion. During prepartum supplementation with whole cotton seed did not have effect on the metabolic profiles. In the postpartum the supplementation and suckling had effect in some metabolites, mainly triglycerides and proteins. Objetivo. Evaluar el efecto de la suplementación con semilla de algodón y el sistema de amamantamiento sobre los perfiles metabólicos desde el parto hasta la semana 14 posparto. Materiales y métodos. Se conformaron 4 tratamientos: T1 con 4 vacas suplementadas con 2 kilos de semilla de algodón y amamantamiento experimental; T2 con 3 vacas suplementadas con 2 kilos de semilla de algodón y amamantamiento tradicional; T3 con 3 vacas sin suplemento y amamantamiento experimental; T4 con 3 vacas sin suplemento y amamantamiento tradicional. Se utilizó un diseño al azar con arreglo factorial 2 x 2 y para el análisis de resultados se empleó análisis de varianza. Resultados. En el posparto, las vacas suplementadas presentaron mayores niveles (p<0.05) de proteína y de colesterol en sangre en la quincena 7; igualmente mostraron mayores niveles de triglicéridos y HDL en las quincenas 2 y 4 respectivamente que las vacas no suplementadas. Hubo efecto del amamantamiento sobre la proteína en las quincenas 3, 6 y 7 (p<0.05); se encontraron mayores concentraciones en los animales con amamantamiento tradicional versus amamantamiento restringido (91.2 y 63.8; 94.2 y 71.1 y 95.8 y 71 g/l, respectivamente). Hubo correlación (p<0.05) de los tratamientos sobre los triglicéridos durante las quincenas 2, 6 y 7. No hubo efecto (p>0.05) de los tratamientos sobre la reproducción posparto. Conclusión. La suplementación con semilla de algodón no tuvo efecto sobre los perfiles metabólicos durante el preparto. En el postparto la suplementación y el amamantamiento tuvieron efecto en algunos metabolitos, principalmente triglicéridos y proteínas.

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    ABSTRACT: The purpose of this investigation was to evaluate the effect exerted by the diet on semen quality in Brahman bulls and serum total protein, glucose, cholesterol and blood urea nitrogen, and to determine and its relationship with the microscopic characteristics of the semen. Twelve bulls older than 36 months were selected, with a previous period of adaptation. The bulls were di- vided into three groups, the first group received a diet of pasture (Brachiaria decumbens, Brachiaria humidicola) and concentrate (36.9% total digestible nutrients -TDN, 7.08% crude protein and 1.5 Mcal of metabolizble energy -EM), the second (feedlot) fed with concentrate and hay (57.8% TDN, 12.5% of crude protein and 2.1 Mcal of EM), the last group (grazing) based pas- tures (Brachiaria decumbens, Brachiaria humidicola) (38.3%TDN, 6% of crude protein and 1.3 Mcal of EM). Three samplings were conducted at intervals of 20 days. Samples were taken from semen and blood. The highest percentage of rapid progressive mobility (PRPM; 4.46%) and percentage of living (%L; 72.7%) were of diet 3. Minor abnormalities (MA) showed similar average values for diets (P>0.05) and significant differences (P
    Revista científica de veterinaria 01/2012; XXII(2):163-170. · 0.14 Impact Factor

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Roger D. Salgado