1977
DOI: 10.2527/jas1977.4551061x
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Effect of Feeding Various Gestation and Lactation Dietary Protein Sequences on Long-Term Reproductive Performance in Swine

D. C. Mahan
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Cited by 27 publications
(27 citation statements)
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“…Less clearly defined, however, is the carry-over effect of low gestation protein levels on subsequent lactation performance of the dam. It has been clearly demonstrated that fortified, corn-based gestation diets resulted in decreased postpartum performance even though lactation diets met or exceeded NRC (1979) requirements (Rippel et al, 1965;Baker et al, 1970a,b;Hawton and Meade, 1971;Hesby et al, 1972;Mahan, 1977). Mahan and Grifo (1975) observed a linear increase in pig weight gain with increasing dietary lactation protein levels from 12 to 18% when the dam had received a vitamin-and mineral-fortified corn diet during gestation.…”
Section: Resultsmentioning
confidence: 99%
“…Less clearly defined, however, is the carry-over effect of low gestation protein levels on subsequent lactation performance of the dam. It has been clearly demonstrated that fortified, corn-based gestation diets resulted in decreased postpartum performance even though lactation diets met or exceeded NRC (1979) requirements (Rippel et al, 1965;Baker et al, 1970a,b;Hawton and Meade, 1971;Hesby et al, 1972;Mahan, 1977). Mahan and Grifo (1975) observed a linear increase in pig weight gain with increasing dietary lactation protein levels from 12 to 18% when the dam had received a vitamin-and mineral-fortified corn diet during gestation.…”
Section: Resultsmentioning
confidence: 99%
“…Entretanto, Mahan (1977) verificou que porcas de terceiro ciclo submetidas a nível de 8,5% de PB na ração tiveram menor número de leitões desmamados que aquelas recebendo 14,0% de Tabela 2 -Peso das fêmeas à cobertura, ganho de peso das fêmeas na gestação e diferença de peso entre ciclos reprodutivos, em função do nível protéico da ração …”
Section: Resultsunclassified
“…Da mesma forma, Pond (1973) observou que a restrição de PB durante a gestação reduziu significativamente a produção de leite nos primeiros dias de lactação, com queda no consumo de colostro pelos leitões e conseqüente redução da taxa de sobrevivência. Segundo Mahan (1977) e Shields et al (1985), o nível de PB na ração durante a gestação pode influenciar a produção de leite após o parto, principalmente nos primeiros dias.…”
Section: © 2006 Sociedade Brasileira De Zootecniaunclassified
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“…In the study of Holden et (1968), a diet containing 8% high quality protein fed at the level of 1.82 kg daily during ges tation and fed ad libitum twice daily during lactation provided adequate amount of protein for satisfactory reproductive performance. In more recent studies (Mahan, 1977;Duee et , 1980) a detrimental effect on reproductive performance was observed, when pregnant sows were fed a diet containing 10% crude protein. But unlike Holden et 's (1968) high quality protein diets, in the latter studies the protein was provided by corn alone or by corn and only 5% soybean meal.…”
Section: Protein Levelmentioning
confidence: 99%