不同粗饲料组合对山羊饲粮养分表观消化率及氮平衡的影响   总被引：1，自引：0，他引：1  

高立鹏  孟梅娟  白云峰  涂远璐  严少华  刘建 《动物营养学报》2016,(8):2396-2403

本试验旨在研究不同粗饲料组合对山羊饲粮养分表观消化率及氮平衡的影响。选取4只体重为(26.63±2.60)kg的波尔山羊×徐淮山羊(波杂羊),采用4×4拉丁方设计,基础饲粮采用稻草(A)为粗饲料,试验饲粮分别采用大豆皮(B)、金针菇菌渣(C)及大豆皮+金针菇菌渣(D)替代部分稻草,4组饲粮等氮、等能、等纤维。试验分为4期,每期15 d,其中预试期10 d,正试期5 d。结果表明:1)4组饲粮的干物质(DM)、酸性洗涤纤维(ADF)、磷以及总能的表观消化率差异不显著(P0.05)。2)与饲粮A相比,饲粮D显著提高了有机物(OM)和中性洗涤纤维(NDF)的表观消化率(P0.05),饲粮B与饲粮A差异不显著(P0.05);饲粮B、饲粮C和饲粮D的钙表观消化率差异不显著(P0.05),但显著高于饲粮A(P0.05)。3)与饲粮A相比,饲粮B、饲粮C和饲粮D显著提高了氮沉积率和氮生物学价值(P0.05)。综合得出,与单独采用稻草为粗饲料相比,采用大豆皮、金针菇菌渣或二者联合与稻草组合提高了山羊OM、NDF、钙的表观消化率,氮沉积率以及氮生物学价值;本试验条件下,采用大豆皮和金针菇菌渣联合与稻草组合为粗饲料效果最优。  相似文献   

金针菇菌渣对山羊饲粮养分表观消化率及氮平衡的影响     

《动物营养学报》2016,(9)

本试验旨在研究不同金针菇菌渣添加比例对山羊饲粮养分表观消化率及氮平衡的影响。选用4只体重为(22.5±0.6)kg的波尔山羊×徐淮山羊(波杂山羊),采用4×4拉丁方设计,金针菇菌渣在饲粮中的添加比例分别为0(对照)、15%、25%和40%,用于替代稻草,4组饲粮营养水平接近;试验分为4期,每期15 d,其中预试期10 d,正试期5 d。结果表明:1)与对照组比较,饲粮金针菇菌渣添加比例为15%、25%和40%时对山羊的钙、磷表观消化率无显著影响(P0.05),但能够显著提高干物质、有机物、中性洗涤纤维、酸性洗涤纤维以及总能表观消化率(P0.05),且这些指标随金针菇菌渣比例的升高逐渐降低。2)与对照组比较,饲粮金针菇菌渣添加比例为15%、25%和40%时显著提高了山羊氮沉积率以及氮生物学价值(P0.05),且这2个指标随金针菇菌渣比例的升高逐渐降低。结果提示,在饲粮中添加金针菇菌渣可以提高山羊对营养物质消化率;在本试验条件下,金针菇菌渣在山羊饲粮中的最适宜添加比例为15%~25%。  相似文献   

饲粮消化能和可消化粗蛋白质水平对燕山绒山羊营养物质表观消化率的影响     

张继伟  李振林  翟刚  高昆  张英杰  刘月琴  段春辉 《动物营养学报》2018,(10)

本试验旨在研究饲粮消化能(DE)和可消化粗蛋白质(DCP)水平对舍饲燕山绒山羊公羔营养物质表观消化率的影响。选择体况良好、体重为(16.17±1.90) kg的4月龄断奶燕山绒山羊公羔90只,随机分为9组,每组10只。试验采用3×3完全随机设计,DE设定低(11.6 MJ/kg)、中(12.8 MJ/kg)、高(14.0 MJ/kg) 3个水平,DCP也设定低(8.5%)、中(9.5%)、高(10.5%) 3个水平,共配制9种饲粮。每组试验羊随机饲喂1种饲粮,当试验羊平均体重达到20 kg时,每组选择4只进行消化代谢试验,预试期7 d,正试期3 d。结果显示:1)随着饲粮DE水平的升高,粪能显著降低(P0.05),总能表观消化率显著提高(P0.05);饲粮DCP水平和DE水平与DCP水平的交互作用对摄入总能、粪能、尿能、消化能和总能表观消化率均未产生显著影响(P0.05)。2)摄入氮和粪氮随饲粮DE水平的升高而显著降低(P0.05);低、中DE水平组的氮表观消化率显著低于高DE水平组(P0.05);低DCP水平组的摄入氮和氮表观消化率显著低于高DCP水平组(P0.05),低、中DCP水平组的可消化氮显著低于高DCP水平组(P0.05);饲粮DE水平与DCP水平的交互作用对各氮代谢指标均无显著影响(P0.05)。3)随着饲粮DE水平的升高,干物质、有机物、粗脂肪和钙的表观消化率逐渐提高,其中干物质、有机物的表观消化率表现为各组间差异显著(P0.05),粗脂肪的表观消化率表现为高DE水平组显著高于低DE水平组(P0.05),钙的表观消化率表现为高、中DE水平组显著高于低DE水平组(P0.05);饲粮DCP水平以及DE水平与DCP水平的交互作用对干物质、有机物、粗脂肪、中性洗涤纤维、酸性洗涤纤维、钙和磷的表观消化率均未产生显著影响(P0.05)。综上所述,随着饲粮DE水平的提高,燕山绒山羊的干物质、有机物、粗脂肪、钙、总能和氮的表观消化率持续提高;饲粮DCP水平显著影响了燕山绒山羊的摄入氮、消化氮和氮表观消化率;饲粮DE和DCP水平分别为14.0 MJ/kg和10.5%时燕山绒山羊的总能表观消化率、消化能、氮表观消化率最高,DE和DCP水平分别为12.8 MJ/kg和10.5%时燕山绒山羊的沉积氮最高。  相似文献   

玉米干酒糟及其可溶物(DDGS)营养价值评定和评定技术的研究   总被引：17，自引：0，他引：17  

郭亮  郭浩  李学武 《中国畜牧兽医》2005,32(1):17-19

试验选用 6头平均体重为 5 0 .9± 2 .73kg的生长猪 ,应用套算法 (the difference method) ,采用全消化道收粪技术 ,试验按 6× 6拉丁方设计 ,测定 4种玉米干酒糟及其可溶物 (corn distillers dried grains with solubles,DDGS)的氮 (N)、中性洗涤纤维 (NDF)、酸性洗涤纤维 (ADF)、干物质 (DM)、总能 (GE)和消化能 (DE)及其表观消化率。 4种 DDGS(CP30 %、CP2 7%、CP2 6 %和 CP2 5 % )的表观消化能分别为 35 80、345 6、35 6 8和 35 2 3kcal/ kg;氮表观消化率为 6 6 .0 %～ 76 .0 % ;中性洗涤纤维表观消化率为 6 0 .6 %～ 76 .6 % (P<0 .0 5 ) ;酸性洗涤纤维表观消化率 91.0 %～ 94 .8% (P<0 .0 5 ) ;总能表观消化率为 6 1.0 %～6 7.7% ;干物质表观消化率为 75 .4 %～ 79.5 % (P<0 .0 5 )。DDGS的总能和中性洗涤纤维消化率相关系数为 0 .6 8;粗蛋白质和酸性洗涤纤维消化率相关系数为 0 .73。加工工艺影响 DDGS的养分表观消化率。采用套算法测定 DDGS的养分消化率 ,要求待测试验日粮中的被测养分含量满足动物对该养分的最低需要量。  相似文献   

日粮营养水平对海南黑山羊肥育羔羊日粮养分表观消化率的影响          下载免费PDF全文

王定发  周璐丽  李茂  周汉林  侯冠彧  施力光 《家畜生态学报》2013,34(6):26-29

试验旨在研究不同营养水平精料补饲对海南黑山羊肥育羔羊的日粮养分表观消化率的影响。选择3月龄、体重相近的海南黑山羊24只,随机分成6个处理组,每个处理组4只羊。设计2个粗蛋白质水平(15%和17%)和3个消化能水平(11.72、12.55、13.39MJ/kg)的精料补充料,自由采食,试验期90d。结果表明:日粮蛋白质水平对黑山羊日均干物质、能量、中性洗涤纤维(NDF)和酸性洗涤纤维(ADF)采食量无显著影响(P>0.05),日粮消化能水平对黑山羊日均粗脂肪、粗灰分和钙、磷、NDF和ADF采食量影响显著(P<0.05);日粮蛋白质水平对黑山羊日粮中各养分的表观消化率无显著影响(P>0.05);随着日粮中消化能水平的增加,能量、粗蛋白质、粗脂肪、ADF和NDF的表观消化率亦随之增加(P<0.05)。结果表明,日粮蛋白质水平对黑山羊日粮中各养分表观消化率无显著影响,而日粮能量水平对日粮中能量、粗蛋白质、粗脂肪、ADF和NDF的表观消化率影响显著。  相似文献   

Effects of Forage Combinations on Nutrient Digestibility, Utilization of Energy and Nitrogen of Diets for Dairy Cows     

XIA Ke  WANG Zhibo  XI Weibin  YAO Qing  LI Fuguo  WANG Yan  ZHAO Hongbo  ZHANG Yonggen 《动物营养学报》2012,24(4)

本试验旨在研究粗饲料组合对奶牛饲粮养分消化率、能量和氮的利用的影响.试验采用单因素随机区组设计,将16头体重、年龄、胎次相近的,处于干奶期的健康荷斯坦奶牛分为4组,每组4头.以常用的粗饲料设计A(玉米青贮+玉米秸秆)、B(玉米青贮+羊草)、C(玉米青贮+玉米秸秆+羊草)、D(玉米青贮+苜蓿草+羊草)4种粗饲料组合的饲粮.结果表明:饲粮D干物质、有机物和中性洗涤纤维的消化率最高,显著高于其他各饲粮(P＜0.05),其次为饲粮B和饲粮C,饲粮A最低,显著低于其他各饲粮(P＜0.05),各饲粮的酸性洗涤纤维消化率差异不显著(P＞0.05).粗饲料组合显著影响饲粮摄入总能、能量消化率和能量代谢率(P＜0.05),饲粮D甲烷能占摄入总能比显著低于其他3种饲粮(P＜0.05).各饲粮的粪氮、尿氮占摄入总氮比差异不显著(P＞0.05),饲粮D的氮消化率显著高于饲粮B与饲粮C(P ＜0.05),且饲粮B显著高于饲粮A(P ＜0.05);饲粮B、饲粮D的氮利用率显著高于饲粮A(P ＜0.05).由此可见,玉米青贮+苜蓿草+羊草型饲粮的养分消化率、能量和氮的利用均优于其他各饲粮,羊草与玉米秸秆之间存在正组合效应,两者搭配使用可提高玉米秸秆的消化率,优化能量和氮的利用.  相似文献   

玉米蛋白粉营养价值评定及其评定技术的研究   总被引：6，自引：0，他引：6  

郭亮  安秀芳  李淑英  郭帅 《中国畜牧兽医》2004,31(3):16-18

试验选用6头平均体重(50.9±2.73)kg生长猪,应用套算法(The Difference Method),采用全消化道收粪技术,按6×6拉丁方试验设计,测定玉米蛋白粉的氮(N)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、干物质(DM)、总能(GE)和消化能(DE)及其表观消化率,待测原料包括4种不同粗蛋白质含量的玉米蛋白粉(CP 63%、CP 52%、CP 47.5%和CP 32%,CGM).4种玉米蛋白粉(CP 63%、CP 52%、CP 47.5%和CP 32%)的表观消化能分别为4234、4029、4023和4244 kcal/kg,氮表观消化率分别为92.3%～96.3%;总能表观消化率分别为79.7%～89.7%;干物质表观消化率分别为82.7%～88.0%(P＜0.05).加工工艺影响玉米蛋白粉的养分表观消化率.采用套算法测定玉米蛋白粉的养分消化率,要求待测试验日粮中的被测养分含量满足动物对该养分的最低需要量.  相似文献   

不同NDF水平肉羊日粮养分表观消化率研究   总被引：5，自引：0，他引：5  

孔祥浩  郭金双  朱晓萍  贾志海  岳春旺  靳玲品  李秀花  秦艳红 《动物营养学报》2010,22(1)

为了测定不同中性洗涤纤维(NDF)水平对肉羊日粮养分表观消化率的影响,选用4只体重相近[(23.5±0.6)kg7的4月龄杂交一代(小尾寒羊×尤角陶赛特)羯羊,采用4×4拉丁方设计进行试验.4种试验口粮按等能等氮而NDF水平分别为30%、35%、40%和45%进行配制(干物质基础),定量饲喂.在本试验条件下,除45%NDF日粮的干物质表观消化率显著(P<0.05)低于其他日粮外,不同NDF水平对肉羊日粮的有机物、粗蛋白质和淀粉表观消化率均未产生显著影响(P>0.05);不同NDF水平并未显著影响(P>0.05)肉羊日粮的NDF、酸性洗涤纤维、纤维素和半纤维素表观消化率,但30%和45%NDF日粮相应指标均较低.综合分析,不同NDF水平对肉羊日粮养分的表观消化率有一定影响,肉羊日粮的适宜NDF水平为35%～40%.  相似文献   

日粮纤维对山羊营养物质消化率的影响          下载免费PDF全文

孟梅娟  高立鹏  涂远璐  刘萍  严少华  白云峰 《家畜生态学报》2016,37(9):29-34

试验选用波尔山羊为研究对象研究不同纤维来源的日粮对山羊营养物质消化率的影响。试验采用4×4拉丁方设计,分别饲喂以小麦秸秆、梨渣、大豆皮和混合(小麦秸秆和梨渣)为主要纤维来源的等氮等能等纤维4组日粮,日粮纤维的添加量为35%。试验分为4期,每期15d,其中预试期10d,正试期5d。结果表明:(1)与小麦秸秆组、梨渣组以及混合组相比,大豆皮组提高日粮中干物质(DM)、有机物(OM)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、以及能量(GE)的表观消化率,大豆皮组的DM表观消化率显著高于梨渣组(P0.05),与日粮小麦秸秆组、混合组差异不显著(P0.05)。大豆皮组的OM表观消化率显著高于小麦秸秆组和梨渣组(P0.05),与混合组差异不显著(P0.05)。大豆皮组的NDF、ADF的表观消化率显著高于小麦秸秆组、梨渣组和混合组(P0.05)。大豆皮组的能量表观消化率显著高于小麦秸秆组、梨渣组和混合组(P0.05);(2)与小麦秸秆组、梨渣组以及混合组相比,当饲喂大豆皮组日粮时,山羊的氮保留率和氮的生物学价值最高,显著高于小麦秸秆组(P0.05)。混合组的钙保留率与大豆皮组差异不显著(P0.05),但显著高于小麦秸秆和梨渣组(P0.05)。大豆皮组的磷保留率显著高于小麦秸秆组和混合组(P0.05),与梨渣组差异不显著(P0.05)。研究结果表明,当饲喂大豆皮为主要纤维来源的日粮时,山羊对其营养物质的利用效果显著,有效地提高了日粮中性洗涤纤维、酸性洗涤纤维以及能量的消化率,并且能有效提高氮的生物学价值。  相似文献   

香蕉茎叶青贮对山羊羔羊生长、营养物质表观消化率及血清指标的影响     

庄一民  解彪  黄文琴  王世琴  刁其玉  张乃锋 《动物营养学报》2019,31(12)

本试验旨在研究饲粮中添加不同比例香蕉茎叶青贮对山羊羔羊生长性能、营养物质表观消化率及血清指标的影响。试验选取3～4月龄、体重相近、健康状况良好的断奶山羊羔羊96只,随机分为4组,每组6个重复,每重复4只羊。对照组(A组)饲喂基础饲粮,试验组(B、C、D组)分别用香蕉茎叶青贮代替基础饲粮中33%、66%、100%的牛鞭草,使饲粮中香蕉茎叶青贮添加比例分别达到21.5%、43.0%、65.2%。饲养试验持续35 d,其中预试期5 d,正试期30 d。结果表明:随着饲粮中香蕉茎叶青贮添加比例的提高,山羊羔羊的平均日增重呈线性降低(P0.05),D组羔羊的干物质采食量和平均日增重有低于A组的趋势(0.05≤P≤0.10);山羊羔羊的干物质、粗脂肪、酸性洗涤纤维表观消化率随着饲粮中香蕉茎叶青贮添加比例的提高呈线性升高(P0.05),且D组羔羊的干物质和酸性洗涤纤维表观消化率有高于A组的趋势(0.05≤P≤0.10);粗蛋白质表观消化率随着饲粮中香蕉茎叶青贮添加比例的提高呈线性降低(P0.05),且C、D组显著低于B组(P0.05); C、D组血清总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)活性、胰岛素样生长因子-1(IGF-1)含量显著高于A、B组(P0.05),C、D组血清总蛋白(TP)、免疫球蛋白G(IgG)、球蛋白(GLOB)与尿酸(UA)含量显著低于B组(P0.05)。综上,在饲粮中添加43.0%～65.2%香蕉茎叶青贮可提高山羊羔羊的抗氧化能力,但会降低粗蛋白质表观消化率,实际应用中需要在饲粮中适当补充粗蛋白质和能量,并提高香蕉茎叶青贮的适口性,以增加采食量。  相似文献   

Feeding value of diets containing almond hulls     

S.H. Clutter MS  A.V. Rodiek PhD 《Journal of Equine Veterinary Science》1992,12(2)

Four mature geldings were used in a 4 X 4 Latin Square digestion experiment to determine the digestibility of pelleted diets containing 0. 15, 30 and 45% Nonpareil almond hulls. The four isonitrogenous treatments consisting of almond hulls, oat hay, and alfalfa hay provided approximately 94% dry matter (DM), 11% crude protein (CP), 23-32% acid detergent fiber (ADF) and 4100 kcal/kg gross energy (GE). Each horse consumed a different diet during each of four 14-day trial periods. Horses were fed 10 kg of their assigned diet per day. The horses gained an average of 15 kg over the course of the 8-week study. No feed was refused in any of the trials and there were no signs of adverse reactions to any of the diets. The digestibilities of the four dietary components (DM, CP, ADF and GE) were not affected by horse or trial period. Dry matter and GE digestibilities increased (P<.05) as the almond hull content increased in the four diets (59, 63, 64 and 68% DM digestibility and 57, 61, 61 and 64% GE digestibility, respectively). Acid detergent fiber digestibility was not affected by almond hull content (39, 39, 39 and 42% digestibility, respectively) while CP digestibility decreased as the almond hull content increased in the four diets (69, 62, 66 and 56% digestibility, respectively). Almond hulls appear to be a safe and palatable feed for horses and can be fed up to levels of 45%.  相似文献   

Effects of supplementation of Panicum maximum with four herbaceous forage legumes on performance,nutrient digestibility and nitrogen balance in West African dwarf goats     

Festus Tope AJAYI  Olaniyi Jacob BABAYEMI  Abiodun Ayinde TAIWO 《Animal Science Journal》2008,79(6):673-679

The effects of supplementing a basal diet of guineagrass (Panicum maximum cv Ntchisi) (diet 5) with Stylosanthes guianensis (diet 1), Lablab purpureus (diet 2), Aeschynomene histrix (diet 3) and Centrosema pubescens (diet 5) on West African dwarf goats were evaluated. Parameters measured were feed intake, nutrient digestibility and nitrogen balance. Voluntary intake (g/kg W0^.75/day) of dry matter (DM) 138.73, crude protein (CP) 25.86, neutral detergent fiber (NDF) (96.29) and acid detergent fiber (ADF) (65.73) of diet 1 were not significantly different (P > 0.05) from the other diets with legume supplements. The feed intake of goats on diet 5 was lower (P < 0.05), having corresponding values of DM (108.21), CP (17.33), NDF (77.68), and ADF (53.55). Weight gain (g/day) differed (P < 0.05) in goats placed on the diets. The lowest weight gain was obtained in diet 5. The digestibilities of DM, CP, ADF and acid detergent lignin (ADL) differed (P < 0.05) in diet 1–5 except for NDF digestibility. Nitrogen balance (g/kg W ^0.75/day) ranged from 0.29 in diet 5 to 0.83 in diet 2 (P < 0.05). Similarly, nitrogen retention percentage was highest in diet 2 (35.17), with the lowest value in diet 5 (20.71). It could be concluded that a diet consisting of Panicum maximum with Lablab purpureus supplementation gave the highest performance in weight gain, nitrogen digestibility and nitrogen utilization. However, any of the herbaceous legumes in this study would lead to increased productivity of ruminant livestock.  相似文献   

饲喂频率对生长猪饲粮养分消化率的影响     

刘静  曹山川  陈冠希  谢乙宁  刘静波 《中国畜牧杂志》2018,(2)

为研究饲喂频率对生长猪总能(GE)和养分的表观回肠消化率(AID)和表观全肠道消化率(ATTD)的影响,试验将24头回肠末端安装简单T型瘘管、平均初始体重为(40.7±1.3)kg的生长猪随机分到M2组(每天饲喂2次)和M12组(每天饲喂12次),每个处理组12个重复,每个重复1头猪。试验期共9 d,包括5 d适应期,2 d粪样收集期和2 d食糜收集期。结果表明:平均日采食量(ADFI)、平均日增重(ADG)和耗料增重比不受饲喂频率的影响(P0.1);饲喂频率对粗灰分、干物质(DM)、粗脂肪(EE)、碳水化合物(CHO)、粗蛋白(CP)、中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)以及GE的AID无显著影响(P0.1);M2组的粗灰分、DM、EE、CP、NDF和GE的ATTD显著低于M12组(P0.05);M2组EE和ADF(P0.05)、NDF(P0.01)的后肠道消化率显著低于M12组;M2组ADF和CP的ATTD以及GE的后肠道消化率有低于M12组的趋势(P0.1)。由此可见,生长猪饲喂玉米-豆粕型饲粮,GE和养分的AID不受饲喂频率的影响,但增加饲喂频率能提高GE和养分的后肠消化率和ATTD。  相似文献   

Influence of urea molasses treated wheat straw fermented with cattle manure on chemical composition and feeding value for growing buffalo calves     

M. Sarwar  M. Nisa  Z. Hassan  M.A. Shahzad 《Livestock Science》2006,105(1-3):151-161

The study was conducted to examine the chemical composition of urea–molasses treated wheat straw (WS) fermented with cattle manure (CM) and its feeding value for growing buffalo male calves. Wheat straw treated with varying levels of urea (0%, 2% and 4%) and molasses (2% and 4%) was ensiled with 30% cattle manure (on dry matter basis) for different fermentation periods (20, 30 and 40 days). Fermented wheat straw (FWS) after each fermentation period was analyzed for pH, dry matter (DM), crude protein (CP), true protein (TP), ammonia nitrogen (NH₃-N), acid detergent fiber (ADF) and neutral detergent fiber (NDF). Maximum pH, DM, CP, TP and NH₃-N and minimum NDF contents were observed with 4% urea. The 4% molasses level increased the CP, TP and NH₃-N contents of FWS, but pH, DM and NDF remained unchanged after 40 days of fermentation. The 4% urea × 4% molasses interaction resulted in maximum DM, CP, TP, NH₃-N after 40 days of fermentation period and this combination was used for large scale production of FWS to evaluate its feeding value for calves. Four isonitrogen and isocaloric diets were formulated. The control FWS 0 diet contained no FWS while in FWS 15, FWS 25 and FWS 35 diets concentrate was replaced with 15%, 25% and 35% FWS, respectively. The diets were randomly allotted to four groups of 28 calves 9–12 months of age, seven in each group, in a randomized complete block design to examine the nutrient intake, digestibility, nitrogen balance and weight gain. An increased DM, organic matter (OM), CP and NDF intakes were observed in calves fed FWS diets compared to those fed FWS 0 diet. Nitrogen retention increased significantly with increasing the level of FWS. The DM, OM, CP and NDF apparent digestibilities were non-significant in calves fed different levels of FWS. A linear increase in weight gain was noticed in calves fed diets containing increasing level of FWS.  相似文献   

Effects of Feeding Distiller's Dried Grains with Solubles on Growth and Feed Efficiency of Weanling Horses     

Therese A. BonomaAmy C. Brogren  Kevin H. Kline  Kristine M. Doyle  BS 《Journal of Equine Veterinary Science》2008

The effects of replacing corn and soybean meal with distiller's dried grains and solubles in the weanling horse diet were examined. Sixteen weanling horses, 12 fillies and four colts, were fed completely pelleted diets consisting of 50% alfalfa in addition to 50% of a concentrate containing either corn and soybean meal (CS), or 30% of the concentrate replaced with distiller's dried grains with solubles (DDGS). There were no significant differences (P > .05) between the two diets in either average daily gain or gain-to-feed ratio. The CS diet had a higher apparent dry matter digestibility (P < .0001), and higher apparent digestibility of crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) (P < .01). It was concluded that replacing a portion of the corn and soybean meal with distiller's dried grains with solubles in the weanling horse diet did not lead to significant growth depression. However, the diet containing DDGS had reduced apparent digestibility of dry matter, CP, and fiber. Therefore, it was concluded that it may not be advisable to replace more than 30% of the concentrate portion or 15% of the total diet with distiller's dried grains and solubles when alfalfa is used as the forage source constituting 50% of the weanling diet. Even less DDGS may be desirable to substitute for corn and soybean meal in weanling horse diets if the forage source is one with lower protein quality than alfalfa. It is possible that using DDGS for less than 30% of the concentrate portion of the diet along with high-quality alfalfa forage may produce comparable gain and feed efficiency results with less depression of apparent digestibility of dry matter, crude protein, and fiber.  相似文献   

Digestibility and nitrogen retention of diets containing different levels of fibre in local (Mong Cai), F1 (Mong Cai x Yorkshire) and exotic (Landrace x Yorkshire) growing pigs in Vietnam     

Len NT  Lindberg JE  Ogle B 《Journal of animal physiology and animal nutrition》2007,91(7-8):297-303

Total tract digestibility and nitrogen retention of three diets containing different levels of fibre [200, 260 and 320 g/kg neutral detergent fibre (NDF) in dry matter] were determined in three breeds of growing pig at an initial age of approximately 3.5 months. The breeds were local (Mong Cai, MC), F1 crossbred (MC x Yorkshire) and exotic (Landrace x Yorkshire, LY), allocated at random within breed (block) to double 3 x 3 Latin squares. The main fibrous ingredients of the experimental diets were rice bran, cassava residue meal and non-dehulled groundnut cake meal. Digestibility of organic matter (OM), crude protein (CP), NDF, crude fibre, gross energy (GE) and ether extract (EE) decreased as the level of dietary NDF increased (p < 0.001). The r(2) values for the relationship between NDF level and digestibility of OM, CP, GE and EE were 83%, 83%, 80% and 82% respectively. On average, an increase in NDF content of 1% unit resulted in a decrease in OM, CP, GE and EE digestibility of 0.67%, 0.75%, 0.50% and 0.42% units respectively. Digestibility of energy and nutrients was the highest for MC and the lowest for LY (p < 0.01), with intermediate values for F1. There was a negative effect of NDF level on nitrogen (N) retained as a proportion of intake (p < 0.05). Nitrogen retention and utilization were significantly higher (p < 0.001) for LY than for MC and F1 pigs.  相似文献   

Effects of different defatted rice bran sources and processing technologies on nutrient digestibility in cannulated growing pigs     

Bingbing B Huang  Zhiqiang Q Sun  Li Wang  Lu Wang  Huangwei W Shi  Qile L Hu  Zhiqian Q Lyu  Defa F Li  Jianjun J Zang  Changhua H Lai 《Journal of animal science》2021,99(2)

The objective of this study was to evaluate the effects of different defatted rice bran (DFRB) sources and processing technologies on nutrient digestibility in different intestinal segments of pigs. Nine barrows with T-cannula in the distal ileum were randomly allotted to nine different sources in which oil was pressed extracted for seven sources and was solvent extracted for two sources. The experiment contained 6 periods of 12 d, including 8 d for diet adaptation, 2 d for fecal collection, and 2 d for digesta collection. The apparent ileal digestibility (AID) of dry matter (DM), ash, total dietary fiber (TDF), insoluble dietary fiber (IDF), neutral detergent fiber (NDF), acid detergent fiber (ADF), and hemicellulose in different sources of DFRB was quite variable. There were no differences in the AID of dietary gross energy (GE), organic matter (OM), ether extract (EE), crude protein (CP), and soluble dietary fiber (SDF) between different sources of DFRB. There were no differences in the AID of dietary EE, TDF, IDF, and hemicellulose between different processing technologies. Pressed DFRBs have greater (P < 0.05) average AID of dietary GE, DM, ash, OM, CP, SDF, and NDF and lower (P < 0.01) ADF compared with solvent-extracted DFRBs. The apparent total tract digestibility (ATTD) of most of the dietary nutrients, except for the ATTD of dietary EE, SDF, and hemicellulose, significantly varied in different sources of DFRB (P < 0.05). In addition, pressed DFRB had greater (P < 0.05) ATTD of dietary SDF, NDF, ADF, and hemicellulose compared with solvent-extracted DFRB. The apparent hindgut digestibility (AHD) of dietary DM, SDF, NDF, and ADF significantly varied (P <0.05) in different sources of DFRB. Exception with DM, there are no differences in the AHD of nutrients digestibility between pressed DFRB and solvent-extracted DFRB. In conclusion, DFRB in different sources and processing technologies with different physicochemical properties had different effects on nutrient digestibility in the foregut and hindgut of pigs.  相似文献   

Effect of feeding different levels of foliage from Erythrina variegata on the performance of growing goats     

Kongmanila D  Bertilsson J  Ledin I  Wredle E 《Tropical animal health and production》2012,44(7):1659-1665

The effect of feeding different levels of foliage from Erythrina variegata on the performance of growing goats was studied using a local breed (Ma T'ou) with an average initial body weight of 11.2?kg (SD?=?0.9). Twenty-four animals were allocated to a randomized design, with six animals (three males and three females) per treatment. The treatments were four different levels of replacement of the diet crude protein (CP) with CP from Erythrina foliage (EF) at 0?% (E-0), 20?% (E-20), 40?% (E-40), and 60?% (E-60). There were no significant differences in the dry matter (DM) intake between treatments, but total CP intake was significantly higher in the goats fed the diet E-60 compared to E-20 (61.1 and 51.4?g/day, respectively). The average daily liveweight gain of the goats did not differ between treatments and ranged from 51 to 63?g/day. Sixteen animals were kept in metabolism cages for a digestibility study and given with the same four diets as in the main experiment. The digestibility of DM, organic matter, neutral detergent fiber, and acid detergent fiber was significantly higher for diet E-60 than for E-0. Neither the apparent digestibility of CP and N retention nor carcass characteristics (16 animals) differed with an increase in the level of CP from EF in the diets. In conclusion, CP from EF can replace up to 60?% of CP from a mixed diet with soybean meal without any negative effect on the growth in goats.  相似文献   

比较研究固态发酵菜籽粕和菜籽粕对生长肉兔的营养价值   总被引：1，自引：0，他引：1  

田刚  王乐成  余冰  陈航  罗玉衡  陈代文  刘书亮 《动物营养学报》2017,29(3)

本研究旨在通过消化试验比较固态发酵菜籽粕(SFRSM)与菜籽粕(RSM)在生长肉兔上的营养价值,为家兔饲料原料数据库提供基础数据。在测定SFRSM和RSM化学组成的基础上,将36只42日龄、遗传背景相同的健康法国伊拉商品兔按体重相近原则随机分为3组(每组12只),饲养于粪尿可分开的代谢笼中,每笼1只,分别饲喂1种基础饲粮和2种试验饲粮(85%基础饲粮+15%SFRSM或RSM),进行体内消化试验。试验期11 d(预试期7 d,收集期4 d)。结果显示:1)与RSM相比,SFRSM的粗纤维(CF)、无氮浸出物(NFE)、酸性洗涤纤维(ADF)和异硫氰酸酯(ITC)含量极显著降低(P0.01),其他常规营养成分[除中性洗涤纤维(NDF)外]和小肽含量显著或极显著升高(P0.05或P0.01);各氨基酸含量不同程度提高,其中精氨酸(Arg)、天冬氨酸(Asp)、谷氨酸(Glu)、组氨酸(His)、异亮氨酸(Ile)、苯丙氨酸(Phe)、脯氨酸(Pro)和丝氨酸(Ser)含量达极显著水平(P0.01)。2)与RSM相比,SFRSM的消化能(DE)值(14.97 MJ/kg DM)提高了34.3%(P0.01);总能(GE)、粗蛋白质(CP)、ADF、NDF、钙(Ca)和总磷(TP)全肠表观消化率也有所提高(P0.05);各氨基酸全肠表观消化率不同程度提高,其中Asp、半胱氨酸(Cys)、甘氨酸(Gly)、Ile、酪氨酸(Tyr)和缬氨酸(Val)全肠表观消化率达显著或极显著水平(P0.05或P0.01)。总体而言,SFRSM对生长肉兔的营养价值高于RSM。  相似文献