喷雾干燥破膜血球蛋白粉替代血粉对断奶仔猪生长性能的影响

试验采用单因子试验设计,选用60头(28±2)日龄断奶,体重(7.08±0.82)kg二元杂交仔猪,随机分为3组,每组5个重复,每个重复4只猪,分别用0、1.76%、3.52%喷雾干燥破膜血球蛋白粉(SDBC)取代仔猪基础日粮(玉米-豆粕型,添加4%的血粉)中血粉的0、50%、100%,研究SDBC部分或全部替代血粉对断奶仔猪生长性能、养分消化率和血液指标的影响。经过28d的试验,结果表明:与对照组相比,1.76%SDBC组和3.52%SDBC组均可显著提高仔猪ADG、降低F/G。而且1.76%SDBC组的ADG和F/G分别比对照组提高了24.7%和降低了14.1%,其养分消化率也最高。由此可见,SDBC能够完全替代血粉,但以添加1.76%SDBC替代50%的血粉效果最好。     

喷雾干燥破膜血球蛋白粉替代鱼粉对断奶仔猪生长性能的影响

试验采用单因子试验设计,选择60头(28±2)日龄断奶、体重(7.36±0.73)kg二元杂交仔猪,随机分为3组,每组5个重复,每个重复4头猪,分别饲喂用0、1%、1.5%血球蛋白粉等蛋白质取代仔猪饲粮中鱼粉的饲粮,研究血球蛋白粉部分替代鱼粉对断奶仔猪生长性能的影响。通过28d的试验表明,添加1.5%和1%血球蛋白粉组,与对照组相比可以提高平均日增重、降低料重比和腹泻率。血球蛋白粉可部分替代鱼粉,且对仔猪的生长性能有一定的促进作用,节约饲料成本,提高经济效益。     

马铃薯蛋白粉在仔猪上的营养价值评定

选择体重为(16±1.66)kg PIC仔猪18头,在测定马铃薯蛋白粉(PPM)养分、氨基酸含量的基础上进行消化代谢试验。以PPM和豆粕(SBM)分别作为唯一蛋白源配制半纯合日粮,采用无氮日粮法测定两者猪回肠末端氨基酸的表观消化率和真消化率。结果表明:PPM含消化能18.84MJ/kg,可消化粗蛋白质74.08%,蛋白质生物学效价76.87%,均显著高于豆粕。同时,PPM中大部分氨基酸,尤其是Glu、Lys、Pro等的含量、表观消化率或真消化率显著或极显著高于豆粕,回肠真可消化Glu、Lys、Pro的含量分别为20.67%、5.58%、8.16%,分别比豆粕高194.92%、110.34%、94.87%。可见,PPM的能量和蛋白质氨基酸营养价值明显优于豆粕。     

NP-90饲料用喷雾干燥血球蛋白粉体外消化率的测定

本实验利用过滤法对NP-90饲料用喷雾干燥血球蛋白粉进行蛋白质体外消化率的测定，实验结果表明，NP-90饲料用喷雾干燥血球蛋白粉的平均粗蛋白质含量较高，可达91.625％，且易于消化和吸收。平均体外消化率高达96.708％。     

喷雾干燥血浆蛋白粉在断奶仔猪生产中的应用

近几年来喷雾干燥血浆蛋白粉（SDPP）在仔猪饲料中的应用逐渐普及。尤其是实行三阶段仔猪日粮方案,血浆蛋白粉被认为是非常理想和必需的蛋白质。本文概述了SDPP的营养价值及其在断奶仔猪生产中的应用。喷雾干燥血浆蛋白粉（SDPP）是利用检疫合恪的动物（主要是猪、牛、羊）的新鲜血液经抗凝、稳定化、消毒处理、分离卅血浆,经喷雾干燥获得的具有固定气味,存在灰白色至浅粉红色色阶的无定型粉状物。SDPP具有独持的营养价值,尤其适用于幼龄动物早期断奶时使用。     

喷雾干燥血浆蛋白粉和血球蛋白粉在生猪生产中的应用进展

本文主要介绍了喷雾干燥血浆蛋白粉和血球蛋白粉,对母猪生产性能的影响,对仔猪生产性能和免疫性能的影响及在应用于仔猪影响效果的因素。     

肠膜蛋白粉在断奶仔猪上的应用研究进展

断奶仔猪的营养问题是猪营养问题中的关键环节,动植物性蛋白饲料的选择关系到日粮设计的好坏,进而影响到仔猪的肠道健康、生产性能、消化吸收、免疫功能、生理生化等.肠膜蛋白粉能够有效的促进仔猪的肠道吸收,可部分或全部替代鱼粉、豆粕等蛋白饲料,节约成本的同时也可以减少对大量进口豆粕的依赖.本文就肠膜蛋白粉的营养特性、在断奶仔猪上的应用进行了综述,并对其前景进行展望.     

血浆蛋白粉在断奶仔猪生产上的应用

本文对血浆蛋白粉的生产工艺、特点、及其对断奶仔猪生产性能的影响等方面作一综述,为血浆蛋白粉的合理应用提供一定的理论基础。     

喷雾干燥血浆蛋白粉在仔猪日粮中的应用

早期断奶,可以提高母猪的年生产能力。但是,早期断奶易引起仔猪生产停滞、腹泻,甚至死亡,这主要是因为仔猪的消化机能发育不完善和主动免疫系统尚未健全。喷雾干燥血浆蛋白粉易消化、适口性好、蛋白质组成稳定、含有丰定的免疫球蛋白,是断奶仔猪日粮中一种较理想的蛋白源,对于防止仔猪断奶后的生长停滞和仔猪腹泻有显著效果。     

血球蛋白粉和血粉的差异

本文主要从血球蛋白粉和血粉的感官、加工工艺、化学组成和新鲜度4个方面分析比较二者的差异,结果表明,血球蛋白粉的加工工艺比血粉更加科学、安全。其粗蛋白质和氨基酸含量显著高于血粉,比血粉更新鲜。     

鸡蛋粉在畜禽生产中的应用

本文主要综述了鸡蛋粉的营养特征及其在畜禽生产中的应用。     

不同狼尾草属牧草对德州驴的营养价值评定

为评定不同狼尾草属牧草对德州驴的营养价值,本试验选取健康、体重接近的30月龄德州公驴36头,分为6组,每组2个重复,每个重复3头驴,采用移动尼龙袋法对6种狼尾草属牧草进行表观消化率评定.结果 表明:热研4号王草干物质含量显著高于巨菌草和桂闽引象草(P＜0.05);王草粗蛋白质(CP)含量较热研4号王草、紫色象草、桂牧1...     

不同甘草种质材料营养价值研究

对6个不同甘草种质材料的异黄酮、水分、灰分、粗蛋白、粗脂肪、粗纤维和无氮浸出物含量进行了测定。结果表明,6个甘草的营养成分不同,其中,胀果甘草的无氮浸出物50.29%,根中总异黄酮含量891.8μg/g,均最高,乌拉尔甘草茎叶异黄酮含量、粗蛋白与粗脂肪含量较高。利用灰色关联度分析法对6个甘草进行综合评价得出,乌拉尔甘草营养价值最优,其次排序为胀果甘草粗毛甘草云南甘草光果甘草黄甘草。     

Apparent ileal digestibility of nutrients and amino acids in soybean meal,fish meal,spray‐dried plasma protein and fermented soybean meal to weaned pigs

This study sought to determine whether fermentation could increase apparent ileal digestibility (AID) of dry matter (DM), nitrogen (N), energy (E) and amino acids (AA) in fermented soybean meal (FSBM) greater than that of soybean meal (SBM) in weaned pigs. Four weaned pigs (10.00 ± 0.30 kg) were surgically equipped with T‐cannulas and randomly followed a 4 × 4 Latin square design of treatments (SBM, FSBM, fish meal and spray‐dried plasma protein). Overall, the fermentation process was able to reduce the amount of anti‐nutritional factors (ANF), including trypsin inhibitors, raffinose and stachyose, in the FSBM diet, which were significantly reduced by 39.4, 92.2, and 92.9%, respectively, as compared to the SBM diet. As a consequence of ANF reduction in FSBM, the AID of DM, N and E as well as AA was significantly greater with FSBM than SBM. Taken all together, the fermentation process improved the nutritional quality of SBM, due to ANF reduction, leading to improvement of digestibility of AA. As such, FSBM can be potentially used as a specialized feed ingredient, especially for young animal diets in an attempt to reduce diet costs.     

籽粒苋对鹅营养价值的评定

为了探索籽粒苋对鹅的营养价值以及不同方法不同鹅品种对其真代谢能、常规养分利用效果与差异,分别选取健康成年五龙鹅(小型)和青农灰鹅(大型)公鹅各24只,各设4个处理组,每个处理组6只,试验鹅单笼饲养,每天强饲80 g,试验采用全收粪法。试验结果表明,籽粒苋对鹅是一种较为理想的粗纤维饲料;对籽粒苋进行营养价值评定时,采用强饲并添加维生素和微量元素的方法最好;两品种之间对籽粒苋的真代谢能及常规养分的利用率具有一定的差异。     

Effect of dietary crude protein level on basal ileal endogenous losses and standardized ileal digestibilities of crude protein and amino acids in newly weaned pigs

The study was carried out to estimate basal ileal endogenous crude protein and amino acid losses (IAAL_B) and standardized ileal digestibilities (SID) of crude protein (CP) and amino acids (AA) originating from casein in newly weaned pigs from linear relationships between ileal recoveries and dietary intakes of graded levels of CP and AA. A total of 14 (12 + 2 for replacement) 3‐week‐old barrows weighing 5.7 kg was fitted with simple T cannulas at the distal ileum. At 28 days of age, the pigs were randomly allocated to the six experimental diets with two pigs per diet in four weekly repeated measurements. Corn starch‐based diets, containing six graded levels of CP from casein (90, 155, 220, 285, 350, 415 g/kg CP as‐fed basis respectively), were formulated. Titanium dioxide (TiO₂) was included as a digestibility marker. Each experimental period consisted of 7 days. Ileal digesta were collected for a total of 24 h during day 6 and 8. Splitting the total range of 90 to 415 g/kg CP into smaller ranges, i.e. from 90 to 220, 220 to 350 or 285 to 415 g/kg CP, provides estimates for CP and AA recoveries which are not significantly different from zero. As a result, dietary CP and AA originating from casein are completely digested and absorbed until the end of the small intestine. In addition, the use of large ranges of dietary CP levels showed that IAAL_B were affected (p < 0.050) by the dietary CP content. Accepting that ileal recoveries of CP and AA are exclusively of endogenous origin when purified corn starch casein‐based diets are fed, IAAL_B were estimated as a function of the dietary CP level. There were linear increases (p < 0.050) in IAAL_B when the dietary CP content was increased from 90 to 415 g/kg. Average IAAL_B expressed in g/kg dry matter intake (DMI) were 16.3, 0.7, 0.2, 0.9 and 0.2 for CP, lysine, methionine, threonine and tryptophan respectively. These values are in close agreement with IAAL_B obtained in grower‐finisher pigs.     

不同类型黑麦草营养价值评估

文章旨在通过体内外试验评估不同类型黑麦草的营养价值.试验选择平均体重为(66.87±2.34)kg的绵羊12头,随机分成3组,每组4个重复,每个重复1头.3组绵羊分别饲喂新鲜、青贮和晒干黑麦草.经过14 d的饲养试验后收集粪便和牧草样品进行后续分析.结果:晒干黑麦草的干物质、有机物和无氮浸出物含量均表现最高(P<0.0...     

血浆蛋白粉在仔猪生产中的应用及其作用机理

本文对血浆蛋白粉的特点及其在仔猪生产中的应用效果、作用机制和生物安全性作一综述。