2013
DOI: 10.1590/s0102-09352013000300030
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Abstract: Investigou-se o efeito da ordem de parto (OP) e da perda de peso durante a lactação no desempenho reprodutivo de 666 matrizes suínas. Foram formadas três classes de OP (OP1, OP2 e OP3-5) e duas classes de percentual de perda de peso (≤1% e >1%) durante a lactação. Foram avaliados: taxa de parto, intervalo desmame-estro (IDE) e tamanho da leitegada subsequente. Houve interação de OP versus perda de peso na taxa de parto das fêmeas (P<0,05). As fêmeas OP1 e OP2 tiveram maior chance (P<0,05) de não parir… Show more

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Cited by 9 publications
(6 citation statements)
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“…This way it is possible to infer that the sow capacity in mobilizing body reserves for milk production is conditioned to the thermal environment in which she is kept, and also the interaction of the factors related to the body weight of the piglets (King et al, 1997), number of sucklings (Audist st al., 2000), parturition order, lactation stage, litter size, diet and metabolic status of the sow (Kim et al, 2001). al., 2006) or the reduction in the number of piglets born in the subsequent parturition (Mellagi at al., 2013). According to Gourdine et al (2006) this increase in the weaning-estrus interval is due to the amplification of the puerperal hypothalamic inhibition, more pronounced in primiparous sows.…”
Section: Methodsmentioning
confidence: 99%
“…This way it is possible to infer that the sow capacity in mobilizing body reserves for milk production is conditioned to the thermal environment in which she is kept, and also the interaction of the factors related to the body weight of the piglets (King et al, 1997), number of sucklings (Audist st al., 2000), parturition order, lactation stage, litter size, diet and metabolic status of the sow (Kim et al, 2001). al., 2006) or the reduction in the number of piglets born in the subsequent parturition (Mellagi at al., 2013). According to Gourdine et al (2006) this increase in the weaning-estrus interval is due to the amplification of the puerperal hypothalamic inhibition, more pronounced in primiparous sows.…”
Section: Methodsmentioning
confidence: 99%
“…Os pesos das porcas ao parto (PP) e ao desmame (PD) diferiram significativamente em função da ordem do parto, mas não em decorrência dos tratamentos (Tabela 2), resultado este que está diretamente relacionado ao maior desenvolvimento corporal de fêmeas de segundo ciclo em relação às fêmeas de primeiro parto (MELLAGI et al, 2013).…”
Section: Resultsunclassified
“…Young females tend to consume lower amount of feed during the lactation phase leading to subsequent higher weight loss [3,6]. A logical consequence of this physiological condition in these females is an inadequate development and oocyte maturation [16], which directly affects the litter size in subsequent farrowing and increases the chance of reproductive failure in the next cycle [13]. In the present study, although the body weight was not recorded at the first farrowing and weaning, some decrease in farrowing rate was expected for primiparous sows but no difference was detected between the four groups.…”
Section: Discussionmentioning
confidence: 99%