Aspects concerning the influence of microclimate factors on milk yield and behaviour of milk sheep population
1994
Petrachi, A. | Tanase, E. | Diaconu, R. (Institutul de Cercetare si Productie pentru Cresterea Ovinelor si Caprinelor, Palas-Constanta (Romania))
The influence of two microclimate variants was investigated in order to complete the breeding technology of sheep from the milk population: one variant was that with low temperature and normal moisture and the other with optimum temperature but high moisture, performed on two groups of ewes with their lambs (aged 45-65 days) on a 40 days period, during winter time. The follwing results were obtained: - the decrease of milk yield by 8 per cent in the first group against the second, but the chemical composition of milk didn't change; - a mean daily gain of 5.5 per cent with the first group of lambs against the second group of lambs; - a higher fodder consumption with the first group of lambs; - between the temperature and the consumed fodder quantity there are not significant correlations but between the temperature and the length of fodder consumption the correlations are very significant and negative; - ewes in the first group had a longer time for the quadrupedal position and fodder consumption and less time for rest and rumination in the standing position against group 2; - length of the standing position and rumination are significantly and positively correlated with the temperature in both ewes and lambs; - the first variant of microclimate affected the animals' health state.
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