高产母猪的饲养策略.ppt

Feeding Strategies for Prolific Sows高产母猪的饲养策略
. Thacker
Department of Animal Science
University of Saskatchewan
Saskatoon, Saskatchewan
加拿大萨斯喀砌温大学动物科学系
中文翻译:美国ADM公司蔡永久
Changes in the Swine Industry (1980-2005)养猪工业的变化(1980-2005)
Increased Reproductive Efficiency
提高繁殖率
Reduced Back Fat Levels
降低背膘厚度
Earlier Weaning 早期断奶
Muti-Site Production 多点生产
Larger Operations 规模变大
Lower Profit Margins 利润空间变小
Feed Modern Genotypes Differently
现代基因型猪饲养与过去的不同
Conserve
Body Tissue
体组织储备
Consequences of Poor Sow Nutrition母猪营养缺乏的后果
Smaller Litter Size 窝重小
Increased Piglet Mortality 仔猪死亡率增加
Lighter Pigs at Weaning 断奶体重轻
Lower Conception Rates 受精率低
Longer Weaning to Rebreeding Interval
断奶至下一次配种时间间隔长
Premature Culling 过早淘汰
Formulate Diets for
Specific Stages of Production
按生产阶段配制日粮
Developer diets typically contain higher levels of vitamins and minerals than those fed to market animals since the nutritional requirements for growth and reproduction are different. 由于生长和繁殖期的营养需要量不同,后备母猪日粮比商品育肥猪的日粮含有更高水平的维生素和微量元素。
The higher levels of vitamins and minerals are designed to enhance body reserves of nutrients since breeding animals will remain in the herd for a significantly longer period than market animals. 由于种猪比育肥猪饲养时间长,高水平的维生素和微量元素可以保证它们体组织营养物的储备。
Gilt Developer Diets后备母猪日粮
otor problems are mon reason for culling and it is important to ensure adequate intakes of calcium and phosphorus. 运动问题是造成母猪淘汰的主要原因, 但它对保证母猪能摄取足够的钙磷也非常重要。
Several research trials have indicated that the calcium and phosphorus requirements for maximal bone mineralization are higher than the requirements for maximal growth rate. 很多实验研究表明,猪的最大骨质矿化要比最快生长率对钙磷的需要量更高。
Diets fed to replacement gilts should be at least % higher in calcium and total phosphorus than diets fed to market animals beginning at approximately 50 kg body weight. 从50kg体重开始,%。
In addition to higher levels of calcium and phosphorus, there is antidotal evidence that supplementing the gilt developer diet with h