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Fave. Sección ciencias agrarias

versión impresa ISSN 1666-7719

Resumen

LEVA, P.E et al. Bienestar en terneros lechales en dos sistemas de crianza. Estudio de caso en la cuenca lechera santafesina. FAVE. Secc. Cienc. agrar. [online]. 2013, vol.12, n.2, pp.55-74. ISSN 1666-7719.

Well-being of suckling calves under two different rearing systems. Case study in the central milk basin of Argentina. In this paper we conducted a case study with quantitative approach. The aim of this study was to assess welfare in suckling calves during the winter season under two different rearing systems, which are used in the area. Calves were housed in two systems: a stake in males and females cage. All animals received 4 L milk per day, in two servings. Water and a commercial starter were offered ad libitum. Initial and final weights were recorded, weight gain was analyzed using descriptive statistical techniques. Saliva samples were taken at four times over the day, to analyze saliva cortisol (SC). Data were analyzed for time variations. Neither daily fluctuations in SC concentrations nor system effects were detected in SC concentrations. Different behaviors: standing, lying, eating and "others" were observed every other day over a fortnight. Scan sampling at regular intervals was utilized. Data were analyzed by a c2 test. Systems effects were observed on behavioral conducts (p<0.01). Animals in both systems spent 50% of their time lying.

Palabras clave : Behavior; Rearing systems; Saliva concentrations.

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