Adição de água em rações para suínos em crescimento e terminação
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2010-05-21
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Universidade Federal de Goiás
Resumo
In this research, three experiments were conducted. The first and the second
ones were conducted to evaluate the effects of adding water to mash rations on
nutrient digestibility, energy performance, water intake and excrement quality of
pigs at the growing and finishing phases(the evaluation of carcass traits was
performed), respectively. Finally, a last experiment was carried out to evaluate
the proliferation of fungi in the diets of finishing pigs with different levels of water
addition and at different storage times. The variables analyzed in the first two
experiments were nutrients and energy digestibility and metabolism, nitrogen
balance, moisture rate, fecal nitrogen and phosphorus, and performance
variables. For the second trial, the carcass traits were also evaluated after
slaughtering. In the third experiment, the number of fungal colony-forming units
in the diets was evaluated with and without the use of antifungal and at different
storage times. The addition of water to pig diets at growing-finishing phases
does not influence the apparent nutrient digestibility, or the performance of the
animals when they are fed twice a day. There is a reduction of fresh water
intake, and of phosphorus excretion. Carcass composition was not affected.
The addition of water to the diets of pigs in the finishing phase increases the
production of fungi over storage time.
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FARIAS, Leonardo Atta. Addition of water to feed for swines at growing and finishing phases. 2010. 69 f. Tese (Doutorado em Ciências Agrárias) - Universidade Federal de Goiás, Goiânia, 2010.