乳糖和乳制品在斷奶仔豬飼料中的應(yīng)用(編輯修改稿)

　

【文章內(nèi)容簡(jiǎn)介】 Whey Lactose 5 – 10 % 3.4 6.8% Daily gain, g 336 372 377 Daily feed, g 608 672 672 Feed/gain 1.81 1.81 1.78 Baird et al. (1974) 176 pigs weaned at 21 days。 35day test from 5.4 to 18.6 kg,Dried Whey for Weanling Pigs 斷奶仔豬日糧中添加乳清粉的效果,Control Whey Improve 20% ment, % Daily gain, g 236 250 6 Daily feed, g 445 463 4 Feed/gain 1.91 1.85 3 Survival, 成活率% 97.9 98.9 1 Stahly et al. (1983)。 480 pigs weaned at 28 days。 28day test from 6.8 to 13.6 kg,Dried Whey for Weanling Pigs 斷奶仔豬日糧中添加乳清粉和乳糖的效果,Control Whey Improve 20% ment, % Daily gain, g 236 300 26 Daily feed, g 472 576 22 Feed/gain 2.08 1.98 5 Cromwell et al. (1984)。 108 pigs weaned at 28 days。 28day test from 7.7 to 15.0 kg,Dried Whey for Weanling Pigs 斷奶仔豬日糧中添加乳清粉和乳糖的效果,Control Whey Improve 15% ment, % Daily gain, g 304 335 10 Daily feed, g 522 576 10 Feed/gain 1.72 1.73 Burnell et al. (1987)。 252 pigs weaned at 28 days。 28day test from 7.3 to 16.3 kg,Spray vs RollerDried Whey for Pigs 噴霧和滾筒干乳清粉的比較,Control Spray Roller Dried Dried 24% 24% Daily gain, g 413 431 445 Daily feed, g 672 740 708 Feed/gain 1.60 1.68 1.59 Cromwell et al. (1994)。 180 pigs weaned at 28 days。 28day test from 7.3 to 19.1 kg,Roller Dried Whey vs. Dairylac80 for Weanling Pigs 滾筒干乳清粉和乳寶80比較,Control Whey Dairylac80 20% 18% (15% lactose) Daily gain, g 350 368 404 Daily feed, g 586 672 690 Feed/gain 1.69 1.85 1.70 Cromwell et al. (1995)。 84 pigs weaned at 28 days。 28day test from 8.6 to 19.1 kg,Dried Whey for Weanling Pigs Overall Summary of Six University of Kentucky Experiments 肯塔基大學(xué)六個(gè)乳清粉試驗(yàn)的結(jié)果總結(jié),Control Whey Improve ment, % Daily gain, g 313 350 11 Daily feed, g 549 617 12 Feed/gain 1.80 1.80 6 experiments, 1,178 pigs, ~ 4 to 8 weeks, 8 to 17 kg,Dried Whey for Weanling Pigs Average Daily Gain, g 日增重,克,University of Kentucky 6 experiments, 1,178 pigs,Dried Whey for Weanling Pigs Average Daily Feed Intake, g 采食量,克,University of Kentucky 6 experiments, 1,178 pigs,Dried Whey for Weanling Pigs 斷奶仔豬日糧中添加乳清粉和乳糖的效果,Dried whey, % 15 20 25 30 35 Daily gain, g 163 182 186 209 227 Daily feed, g 308 322 335 368 377 Feed/gain 1.89 1.78 1.80 1.76 1.66 Mahan (1992), Ohio State University。 130 pigs weaned at 14 days.,Levels of Dried Whey for Weanling Pigs 不同水平的日糧乳清粉對(duì)斷奶仔豬的影響,Ohio State University (1992)俄漢俄州立大學(xué) (1992) 4wk test, 130 pigs weaned at 2 wk,Levels of Dried Whey for Weanling Pigs 不同水平的日糧乳清粉對(duì)斷奶仔豬的影響,Kansas State University (1981) 堪薩斯州立大學(xué)(1981) 35d test, 100 pigs weaned at 19 d,Daily gain, kg,Levels of Lactose for Weanling Pigs for 14 Days Postweaning 在斷奶14天內(nèi)日糧中的乳糖水平,Mahan et al. (2004) Ohio State University 俄漢俄州立大學(xué)MAHAN博士等(2004) 240 pigs weaned at 19 days,Levels of Lactose for Weanling Pigs from 7 to 21 Days Postweaning 在斷奶7到21天內(nèi)日糧中的乳糖水平,Mahan et al. (2004) Ohio State University 330 pigs weaned at 19 days,Objectives 目的,To assess the efficacy of lactose in the diet during the mid nursery phase – 2 to 4 weeks postweaning.評(píng)價(jià)在保育中期,斷奶后的2到4周飼喂乳糖的效果. To determine the level of lactose that gives the maximum response.決定日糧中的最佳乳糖水平. To determine if the benefits of lactose are maintained following elimination of lactose from the diet.決定是否乳糖的效益能夠在以后飼喂不含乳糖日糧階段中保持下來(lái).,Experimental Procedures 試驗(yàn)方法,Collaborative study at 3 stations (KY, MO, and OH)在肯塔基,密蘇里,俄漢俄3所大學(xué)的試驗(yàn)站同時(shí)進(jìn)行. 1,320 pigs in the study 試驗(yàn)中共使用1320頭豬 Pigs weaned at 15 to 20 d (6.2 kg) 仔豬在15到20日齡斷奶,體重6.2公斤 Allotted by weight and gender to 5 dietary treatments 根據(jù)體重和性別將仔豬分配到5個(gè)不同的日糧處理. 120 pens, 24 reps of 5 or 23 pigs/pen 120欄豬,每欄5到23頭,每個(gè)處理24個(gè)重復(fù). Four phases – experimental diets during phase 3.日糧分為四個(gè)階段,第三階段日糧為試驗(yàn)日糧. Length of experiment: 35 to 42 d 試驗(yàn)日糧從35日齡飼喂到42日齡. Conventional nursery pens with slotted floors. 試驗(yàn)在常規(guī),具有條縫地板的保育欄進(jìn)行.,Experimental Procedures 試驗(yàn)方法,肯塔基KY 密蘇里MO 俄漢俄OH No. reps/treatment 8 8 8 Pigs/pen 5 23 5 Avg initial age, d 19.0 17.5 18.0 Avg initial weight, kg 6.8 5.9 5.8 Avg days on test 35 42 40 Avg final weight, kg 25.7 23.9 26.4 Floor space/pig, m2 0.28 0.17 0.30,Treatments 日糧處理,Week 1 (Phase 1) – Common diet – 20% lactose Week 2 (Phase 2) – Common diet – 15% lactose Week 3 (Phase 3) – 0, 2.5, 5, 7.5, 10% lactose Week 4 Week 5 (Phase 4) – Common diet – no lactose Week 6,Source of Lactose 乳糖來(lái)源,Dairylac174。 80 乳寶80 Granular, nonhygroscopic product produced from sweet whey solubles