玉米DDGS在畜禽日粮中的应用研究

随着玉米在酒精生产中用量的不断增加,同时也产生了大量的副产物--玉米酒糟,商品名为DDGS.它是一种很有价值的饲料组分,因其最大限度地保留了原谷物的蛋白质等营养成分,并且还融入了糖化曲和酵母的营养成分和活性因子.所以说DDGS是一种高蛋白、高营养、无任何抗营养因了的优质蛋白饲料原料.主要对DDGS的组成、营养特性、在畜禽日粮中的应用现状以及应用前景4个方面进行了综述.     

日粮中添加DDGS对肉鸡肉质的影响

将144只肉鸡随机分成3组,评价DDGS(对照组0%;8%)对肉鸡胸肌和腿肌肉质的影响。将肉鸡电晕后,将其胴体除毛、整理和摘取内脏。屠宰4h后,将胴体从冷藏室内取出,摘取胸肌肉和腿肌肉。测定右半侧胴体胸肌和腿肌的肉色、pH、蒸煮损失和剪切力。来自右半侧胴体的胸肌用作感官评定,腿肌用作测定TBA活性物质和脂肪酸组成。总体来说,DDGS组和对照组的肉色(CIEL*,a*,b*)、pH、蒸煮损失和剪切力均无显著差异(P0.05)。另外,消费者对肌肉质地的接受程度无差异(P0.05),但更喜欢对照组(P0.05)。然而,根据嗜好程度评分,两组的得分都是一般喜欢,对胸肌肉评一般喜欢和非常喜欢的消费者(50%)人数,两组间无显著差异。在感官评定的不同试验中,消费者成员无显著差异(P0.05)。DDGS组亚油酸和多不饱和脂肪酸含量较高(P0.05),预示着该组更容易被氧化。总体来说,两组胸肌肉和腿肌肉相比无显著差异。     

玉米DDGS在畜禽日粮中应用及品质评定

玉米DDGS作为一种营养价值丰富、适口性好的蛋白饲料,缓解了近年来国内蛋白类饲料资源不足的局面,对促进我国畜牧业的持续发展具有重要意义,文章对玉米DOGS的营养特性、在畜禽日粮中应用、品质评定,以及使用过程中注意的问题进行了综述。     

玉米DDGS的营养特性及在家禽日粮上的应用

玉米DDGS是以玉米为原料生产燃料乙醇所产生的1种副产品,是1种高蛋白、高营养的蛋白饲料原料。本文总结了玉米DDGS的营养特性、质量评定及在家禽日粮上的应用效果。     

DDGS的营养特性及其在奶牛日粮中的应用

酒精糟及其残液干燥物(DDGS)是谷物发酵生产酒精的一种副产品,其蛋白质、能量争磷含量较高,并且具有明显的价格优势.本文对DDGS饲料的营养特性及其在奶牛日粮中的应用进行综述.     

DDGS在畜禽日粮中的应用

1DDGS的营养价值酒精的生产工艺是利用淀粉酶将淀粉糖化,进而将糖转变成酒精。在生产酒精的过程中,谷物(玉     

DDGS的营养价值及在动物生产中的应用研究进展

酒精糟及其残液干燥物(DDGS)是工业生产酒精的副产品,因其蛋白含量较高,近年来在畜禽生产中广泛应用,体现出较高的营养价值、经济价值和生态价值。DDGS的营养价值主要表现为高蛋白质含量、高脂肪和可消化纤维以及高有效磷含量。DDGS营养成分变异性较大,而造成其变异的主要原因是生产原料和加工工艺的不同。我国现阶段对于DDGS的研究还远落后于生产,因此急需对DDGS饲料进行深入研究,以推进这一优良蛋白质资源在我国畜牧业中的有效应用。     

DDGS在猪日粮中的应用研究

<正>自20世纪70年代以来,大规模的酒精副产物DDGS被生产出来,这使得众多学者加大研究力度将其添加到动物日粮中(Wahlstrom等,1970;Smelski和Stothers,1972;Cromwell等,     

DDGS在猪日粮中的应用

干酒糟及其可溶物（DDGS）是推向饲料市场的相对较新的饲料原料,不过所谓的“新”主要指在欧洲和亚洲的应用前景。在美国,2005年大约有900万吨的DDGS被当作饲料使用,其中75％～80％用于反刍动物,大约20％用于猪日粮。     

肉鸡的DDGS赖氨酸消化率

虽然家禽科学协会单独于2008年在加拿大安大略省尼加拉瓜瀑布旅游胜地召开了会议，但美国动物协会和美国牛奶科学协会联合召开的最新一届年会的非反刍动物营养会议收到了多篇家禽研究文摘。     

DDGS日粮中添加复合酶制剂对肉鸡生长性能和屠宰性能的影响

选用960只1日龄改良型艾维茵肉鸡随机分成3个处理组,每个处理8个重复、每个重复40只鸡,分别饲喂玉米-豆柏型日粮、DDGS型日粮、DDGS加酶型日粮.DDGS添加量为前期5%、后期13%.其中DDGS加酶型日粮中添加复合酶150 g/t.测定分析了肉鸡的生长性能、屠宰性能以及生物学综合评定价值和经济效益分析.试验结果显示:DDGS加酶型日粮对肉鸡生产性能和屠宰性能均无不良影响(P0.05),生物学综合评定价值为100,并降低了全期单住增重饲料成本;而DDGS型日粮显著增加了肉鸡的料肉比(P<0.05),显著降低了屠体重、胸肌重和翅肌重(P<0.05),降低了生物学综合评定价值,增加了中大鸡的单位增重饲料成本.     

Effects of feeding dried distillers grains with solubles (DDGS) on meat quality at the late stage of the fattening period of Holstein steers

Feeding dried distillers grains with solubles (DDGS) during the late stage of the fattening period of Holstein steers was studied in regard to the influence on meat quality. Sixteen Holstein steers approximately 18 months old were used in this study. Eight animals were fed commercial concentrated feed for the entire fattening period. The other eight animals were fed 15% DDGS in the concentrated feed for 3 months before slaughtering. The moisture, ether extract and crude protein from both groups was approximately the same. The thiobarbituric acid reactive substance (TBA) value of storage for 7 days at 5°C from the animals fed DDGS showed a tendency to be lower (P = 0.059). The change in the TBA value during storage was also lower for the animals not fed DDGS (P < 0.05). There were no differences in the subcutaneous fat color between the two groups. The a*(measure of redness) and b*(measure of yellowness) of the M. longissimus from the animals fed DDGS showed a tendency to be lower (P = 0.051, 0.070). The fatty acid composition of the M. longissimus, subcutaneous and perirenal fat were not widely influenced by the feeding of DDGS. It is suggested that feeding 15% DDGS during the late stage of the fattening period for Holstein steers reduced the oxidation of the beef.     

玉米酒精糟的营养价值及其对生长育肥猪肉品质的影响

玉米酒精糟(corn distillers dried grains with solubles,DDGS)是燃料乙醇工厂以玉米为原料发酵生产酒精的副产品,含有丰富的蛋白质、脂肪、有效磷和维生素,是一种良好的饲料原料。近年来,随着燃料乙醇工厂数量的增多、规模的扩大及加工工艺的改进,玉米DDGS的产量和质量也不断提高,并且被越来越多地用于养猪生产中。但是其中过高的脂肪含量,特别是不饱和脂肪酸,导致生长育肥猪的肉品质下降,对猪肉的货架期及深加工造成了一定的负面影响。作者综述了玉米DDGS的营养价值及其对猪肉品质的影响。     

玉米DDGS在饲料中的应用

本文着重介绍了国内外玉米DDGS(谷物干酒糟及可溶物)的营养特性及其在饲料中的应用。     

Evaluation of a high-protein DDGS product in broiler chickens: performance,nitrogen-corrected apparent metabolisable energy,and standardised ileal amino acid digestibility

ABSTRACT

1. New production processes and additional uses for corn co-products have increased the availability of distiller’s dried grains with solubles (DDGS) with varying energy and amino acid digestibility, for use in poultry feed. The objective of this study was to determine the performance, N-corrected metabolisable energy (AME_n), and amino acid (AA) digestibility of a 34% CP (as fed) high-protein DDGS (HP-DDGS) included in poultry diets for Cobb 500 broiler chickens.

2. A total of 832 Cobb 500 broilers were randomly assigned to four dietary treatments containing 5% conventional DDGS (CV-DDGS) as a control or 10%, 15% and 20% HP-DDGS and fed for 42 d. After the performance trial, 240 birds from the original 832 were selected for a concurrent AME_n and AA digestibility experiment consisting of two AME_n diets and two AA diets.

3. Birds fed diets containing 15% and 20% HP DDGS gained less weight than birds fed the CV-DDGS (P < 0.05) but did not differ in feed intake (FI), and therefore had a less efficient FCR than the control (P < 0.05). The AME_n of HP-DDGS was determined to be 11.4 MJ/kg. The standardised ileal amino acid digestibility (SIAAD) of the essential amino acids Lys and Met were determined to be 80.9% and 88.6%, respectively.

4. HP-DDGS can be included in broiler diets up to 10% without any negative impact on performance or requiring supplemental Lys and Arg. The results from the AA digestibility study indicated that HP-DDGS could be a good source of digestible Lys.     

DDGS和其他来源的粗饲料在肉牛生产上的应用研究

两组试验用来评估当在蒸汽压片玉米（SFC）日粮中添加玉米DDGS和苜蓿干草（AH）或者玉米青贮（CS）的肉牛的胴体品质、瘤胃发酵或日粮代谢的影响。在试验1中,358头体重为353±13kg的杂交母牛被用来评估玉米DDGS和AH（或CS）对肉牛胴体品质的影响,试验日粮分为4组,分别为：SFC-CS日粮,即蒸汽压片玉米（SFC）和11%青贮料（CS）;DDGS-CS日粮,即蒸汽压片玉米（SFC）和11%青贮料（CS）以及25%DDGS;SFC-AH日粮,即蒸汽压片玉米（SFC）和6%AH;DDGS-AH日粮,即SFC和25%DDGS以及6%AH。所有的牛每天自由采食,试验时间为97d。结果显示,饲喂DDGS没有影响肉牛的平均日增重（ADG,P=0.19）、干物质采食量DMI（P=0.14）以及饲料转化率（P=0.67）。饲喂CS的肉牛要比饲喂AH的肉牛的DMI高（P=0.05）,但ADG（P=0.56）和G：F（P=0.63）没有太大差别;各处理组的肉牛热胴体重（HCW）、屠宰率、皮下脂肪厚度以及牛肉产量、质量等级的差别也不大（P〉0.20）;饲喂CS组的肉牛相对饲喂AH肉牛有降低大理石花纹评分分数的趋势。在第2个试验中,12头荷斯坦奶牛用来评估各种日粮的肉牛瘤胃发酵和日粮代谢的差异。结果显示,饲喂后14h所有处理组的肉牛瘤胃pH值低于5.8,饲喂25%的DDGS组的肉牛瘤胃的乙酸和丙酸的比率较低（P=0.02）,但瘤胃乳酸浓度要比未添加DDGS组的高（P=0.02）。饲喂25%的DDGS组的肉牛瘤胃氨气浓度有所下降（P〈0.01）。这说明当在肉牛蒸汽压片玉米日粮中添加DDGS可以提高饲料转化率。     

玉米DDGS饲喂肉鸭的营养价值研究

试验用不同添加水平的玉米DDGS代替豆粕饲喂樱桃谷肉鸭,旨在探讨其饲喂肉鸭的营养价值。试验采用单因素完全随机分组设计,共设5个处理组,分别添加0(对照组)、2%、4%、6%和8%的玉米DDGS。每组3个重复,每个重复40只。结果表明:在采食量方面各添加DDGS组与对照组相比有提高的趋势,但差异不显著(P>0.05);在平均日增重和料肉比方面,2%、4%和6%组与对照组差异不显著(P>0.05),而8%组日增重极显著低于对照组(P<0.01),料肉比极显著高于对照组(P<0.01);在饲料增重成本方面,各添加DDGS组均低于对照组。可见,在肉鸭饲料中添加到6%的DDGS不影响肉鸭的生产性能,但是可以明显降低成本,取得较好的经济效益。     

The effects of feeding a low level of distiller's dried grains with solubles (DDGS) to yearling Holstein steers

We examined the effects of feeding a low percentage of distiller's dried grains with solubles (DDGS) to yearling Holstein beef steers during the late stage of the fattening period on growth performance and carcass quality. Fifteen animals were fed a total mixed ration (TMR) feed plus a DDGS supplement equal to 10% of the total feed weight for 3 months (DDGS group). The other 15 animals were fed TMR with no DDGS (Control group). The vitamin E (VE) levels in the blood from the DDGS group showed a tendency to be higher in the DDGS group (P = 0.056). Blood urea nitrogen levels in the DDGS group were also higher (P < 0.05). The Beef Color Standard (BCS) number for the DDGS group was also higher than that for the Control group (P < 0.05). Forty‐eight hours after cutting, the yellowness (b*) value for Longissimus muscle in the DDGS group was significantly higher (P < 0.05) and the redness (a*) value in the DDGS group tended to be higher than that in the Control group (P = 0.05). The study results show a potential for adding value to yearling beef by improving the ability to maintain meat color with an increase in VE content.     

玉米DDGS的营养价值及其在养猪生产中的应用研究进展

玉米DDGS是玉米生产酒精所产生的一种副产品,富含粗蛋白质、磷、维生素等营养成分.本文主要介绍了玉米DDGS的营养特性、质量控制及其在养猪生产中的应用.