title: Effect of supplemental yeast culture in sow gestation and lactation diets on apparent nutrient digestibilities and reproductive performance through one reproductive cycle.
abstract: Ninety-six crossbred sows and gilts were used to study the effect of yeast culture (Diamond V. Mills, Cedar Rapids, IA) on apparent nutrient digestibilities and reproductive performance from d 60 of gestation through d 21 of lactation. Sows were allotted to treatment groups based on parity and BW. Four dietary treatments were made by substituting 0, .5, 1.0, or 2.0% yeast culture for wheat middlings in the basal gestation and lactation diets. During gestation, sows were fed 2.15 kg/d of a 12.5% CP corn-soybean meal diet containing 25.0% alfalfa meal that provided 6.39 Mcal of ME/d. During lactation, sows were fed a 13.5% CP corn-soybean meal diet containing 12.5% alfalfa meal (3.16 Mcal of ME/kg) to appetite daily. Yeast culture supplementation did not affect (P > .3 to .9) the apparent digestibilities of DM, energy, CP, ether extract, ADF, and NDF in gestation (d 90 to 97) or lactation (d 14 to 21), sow weights on d 107 of gestation and d 1 and 21 of lactation, lactation feed intake, or days from weaning to first estrus compared to control sows. Also, yeast culture treatment had no effect (P > .3 to .5) on number of live pigs/litter at birth and d 21 or total litter weight on d 21. In conclusion, supplemental yeast culture in gestation and lactation diets containing alfalfa meal did not affect apparent nutrient digestibilities and reproductive performance criteria through one reproductive cycle.
authors.affiliation: Department of Animal Sciences, University of Missouri, Columbia 65211, USA.
authors.forename: T L
authors.initials: TL
authors.lastname: Veum
authors.forename: J
authors.initials: J
authors.lastname: Reyes
authors.forename: M
authors.initials: M
authors.lastname: Ellersieck
mesh_terms: D000818:Animals; D004032:Diet / Q000592:standards / Q000662:veterinary; D004063:Digestion / Q000502:physiology*; D004971:Estrus / Q000502:physiology; D005260:Female; D005527:Food, Fortified; D007774:Lactation / Q000502:physiology*; D008297:Male; D000455:Medicago sativa / Q000592:standards; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000502:physiology*; D011897:Random Allocation; D012098:Reproduction / Q000502:physiology*; D012441:Saccharomyces cerevisiae / Q000502:physiology*; D013025:Glycine max / Q000592:standards; D013552:Swine / Q000502:physiology*; D003313:Zea mays / Q000592:standards