Dietary Protein to Calorie Ratios and Fat Sources for Neonatal Piglets Reared Artifically with Subsequent Performance I. Performance

Publisher Website
Google Scholar
Abstract
Neonatal pigs were reared artificially from 1 to 23 days of age to determine the effects of fat saturation and protein to calorie ratio on average daily gain (ADG), gain over feed (G/F), diet digestibility and subsequent nursery performance. Soybean meal and skim milk each provided 50% of the dietary protein. Calculated crude protein content ranged from 25.6 to 28.2% and digestible energy ranged from 4.20 to 4.85 Meal per kilogram. Protein to calorie ratios ranged from 53 g to 67 g of crude protein per Meal of digestible energy, which was accomplished by substituting either protein or glucose for fat. The more unsaturated fat (63% vs 43% 18:1) increased the G/F and the digestibility coefficients (P<.05). Protein to calorie ratio did not affect the digestibility of nitrogen, fat, ash and crude fiber. ADG and G/F increased with increasing protein to calorie ratios. Performance in the nursery from 23 to 65 days of age indicated that previous neonatal diet did not influence (P>.05) ADG or G/F when all pigs within experiments received the same diet. Copyright © 1978. American Society of Animal Science . Copyright 1978 by American Society of Animal Science.