文档介绍：Characteristics of the Modern Lactating Sow 现代哺乳母猪的特点? Greater productivity 泌乳量增加? Less body tissue reserves 机体营养储备减少? Lower voluntary feed intake 取食调节能力差? Nutritional Management is Critical 营养管理至关重要 Nutrients 摄入营养 Body Tissue Reserves 机体营养储备 Milk Production 产乳营养 Maintenance 维持营养 Sow Lactation 母猪哺乳 Daily Nutrient Requirements of a 200kg sow producing 10 litres of milk/ day 200 公斤体重的母猪在日产 10公升奶时的营养需要 Energy ( Mcal) Protein (g) Lysine (g) Nutrient in milk 奶中营养 GE 500 CP 35 d lys Efficiency of nutrient utilisation .70 .70 Nutrient Required in Diet 饲料中营养需要 ME 714 DCP 50 d lys Maintenance requirement 维持需要的营养 ME 126 DCP 4 d lys Total dietary requirement 饲料中所需要的营养总量 ME DE 840 DCP 988 CP 54 d lys 64 lysine 6kg Lactation Diet 6 公斤哺乳料含有( McalDE/kg, 16% CP, % lysine) 960 CP 51 lysine Consequences of body weight losses during lactation 哺乳期体重损失后造成的影响? Milk production 产奶量? Weaning to oestrus interval 断奶至发情间隔期 Factors affecting Lactation and Reproductive Performance of First-litter sows 影响初产母猪哺乳及繁殖性能的因素? Lactation diet - Protein content 蛋白质水平哺乳饲料- Energy content 能量水平? Sow body weight 母猪体重? Lactation food intake 哺乳期饲料采食量 Dietary Protein in Lactation (%CP) 23. 8 哺乳料蛋白质水平 Piglet growth rate 0-28 days (g/d) 179 193 215 227 213 216 仔猪日增重 0-28天 15% CP McalDE /kg % LYSINE % CP McalDE /kg % LYSINE Daily feed intake (kg/d )日采食量(公斤/天) Sows mated within 14days of weaning 断奶后 14天内配种母猪 Piglet growth rate (g/d )仔猪日增重(克/天) 20/40 160 31/39 175 Increasing the nutrient intake of sows during their first lactation 增加初产母猪哺乳期营养摄入量可以: ? Reduces the incidence of post-weaning anoestrus 减少断奶后不发情现象? May improve the weaning weight of pigs 可以提高仔猪断奶体重 Feed intake 饲料采食量(公斤) During lactation 哺乳期 Liveweight loss (kg ) 体重损失(公斤)2018161416 Backfat loss (mm ) 背膘损失(毫米) Piglet growth rate (g/d ) 220