2006
DOI: 10.1590/s0102-09352006000200012
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Energia digestível em rações para porcas primíparas em lactação

Abstract: • RESUMOUtilizaram-se 48 porcas primíparas, de genética PIC, com média de peso de 185,03±15,78kg, para avaliar diferentes níveis de energia digestível (3.350, 3.500, 3.650 e 3.800kcal/kg) na ração, durante a lactação (19,98±1,04 dias). Utilizou-se o delineamento experimental inteiramente casualizado, com quatro tratamentos e 12 repetições, sendo a porca considerada a unidade experimental. O consumo total de ração não variou entre os animais dos tratamentos, sendo que as porcas consumiram em média 4,0kg de raçã… Show more

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Cited by 3 publications
(2 citation statements)
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“…Genetic improvement has allowed a greater number of piglets to be born alive per litter; however, it has generated many negative aspects for lactating sows including body weight loss, increased weaning-estrus interval, and fewer piglets born in the subsequent farrowing (Boyd et al, 2000). Thus, it is necessary to determine the nutritional requirements of sows in lactation, as frequent changes in genetic lines result in increased productivity of sows (Paiva et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…Genetic improvement has allowed a greater number of piglets to be born alive per litter; however, it has generated many negative aspects for lactating sows including body weight loss, increased weaning-estrus interval, and fewer piglets born in the subsequent farrowing (Boyd et al, 2000). Thus, it is necessary to determine the nutritional requirements of sows in lactation, as frequent changes in genetic lines result in increased productivity of sows (Paiva et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…At the same time, animals have acquired high reproductive performance, allowing the commercial farms to wean high numbers of piglets. As a consequence of breeding, females come with lower body reserves, which demands larger feed intake during lactation to meet the demand of milk production (Paiva et al, 2006). Moreover, the selection focusing in animals with greater meat deposition resulted in sows with limited consumption capacity (Whittemore and Kyriazakis, 2006).…”
mentioning
confidence: 99%