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Unformatted text preview: 1 Life Cycle Nutrition Part III 114 G e s t a t io n 114 G e s t a t io n 21 Farrowing 21 Farrowing 21 Farrowing 21 Farrowing 42 W e a n i n g 42 W e a n i n g 42 W e a n i n g 49 F e e d e r p i g 49 F e e d e r p i g 56 G r o w / F i n i s h 56 G r o w / F i n i s h 56 Market Hog B r e e d 56 Market Hog 56 Market Hog B r e e d 338 days Sow Nutrition... Overall objective: Efficient production of the maximum number of healthy weanling pigs during the sow’s reproductive lifetime. Sow Nutrition Gestation Lactation 114 d 14-28 d Dry/Open 4-8 d Sow Nutrient Output Component Gestation 114 days Twelve 1.36 Kg Pigs Lactation 4 Wk. 254.5 Kg Milk Water (kg) 13.2 203.6 Protein (kg) 1.8 15.3 Fat (kg) 0.17 17.8 Lactose (kg) -- 12.2 Ash (kg) 0.66 2.5 • Nutrient drain on sows during lactation is much higher than at any other life stage. • Or, stated another way…In only 2 days of lactation, a sow produces dry matter equal to 114 days of gestation. Factors influencing Sow Feeding Programs: Sow body condition score Sow productivity Parity Environmental conditions Health Status 2 In general... Feed is restricted during gestation based on the sow’s body condition score Feed is fed ad libitum during lactation Individual feeding gestation stalls vs. pens... Gestation Feeding during gestation Challenges Meet the needs of the fetuses Maintain the pregnant sow Control excessive weight gains Reduce unsoundness problems Composition of Newborn Pigs COMPONENT % Of D.M. Crude Protein 69 Ash 22.5 Fat 8.5 Dietary fiber for gestating sows Adding dietary fiber to gestating sow rations may lower feed costs and increase reproductive performance ME content of fibrous feeds is greater for sows Sows have a large feed intake capacity relative to dietary requirement Limit-fed gestating sows derive more energy • Low feed intake and resulting slow rate of passage Higher hind gut fermentation capacity Average change in litter size according to source of dietary fiber fed to the sow during gestation Fiber source Daily NDF Intake, gm a Control Fiber No. Pigs born alive No. pigs weaned No. litter b Alfalfa meal 264 381 -0.4 -0.7 269 Alfalfa hay/ Haylage 246 721 +0.5 +0.8 647 Corn gluten feed 166 794 +0.7 +0.4 229 Distillers grains 139 418 -0.3 -0.4 118 Oat hulls/oats 260 1221 +1.8 +0.7 96 Wheat straw 150 368 +0.5 +0.7 699 a Average neutral detergent fiber intake by the sow consuming control and fibrous diets during gestation....
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- Spring '11