蛋氨酸螯合锌和无机锌对仔猪生产性能的比较

将96头三元杂交仔猪分为4个组，在基础日粮上分别添加：1组为蛋氨基酸螯合锌350mg(锌）／kg、2组为氧化锌3000mg（锌）/kg、3组为氧化锌60mg（锌）／kg＋蛋氨基酸螯合锌40mg(锌）／kg、对照组为氧化锌100mg(锌）/kg。结果表明：1、2、3组较对照组日增重、日采食量、饲料利用率高。1组与2组日增重、日采食量、饲料利用率、腹泻发生率几方面差异不显（P＞0．05）。     

蛋氨酸螯合锌对绿头野鸭生产性能的影响

试验研究蛋氨酸螯合锌对绿头野鸭生长性能及能量和蛋白质代谢的影响，探讨蛋氨酸螯合锌的最佳添加剂量。第Ⅰ组为对照组，添加150mg／kg硫酸锌组；第Ⅱ、Ⅲ组为试验组，分别添加75mg/kg硫酸锌＋150mg／kg蛋氨酸螯合锌、300mg／kg蛋氨酸螯合锌。结果表明，各试验组的平均日增重、能量和蛋白质代谢率显著高于对照组（P〈0．05），以4-7周效果最明显；料肉比显著低于对照组；添加75mg／kg硫酸锌＋150mg／kg蛋氨酸螯舍锌效果较好。     

蛋氨酸螯合锌对绿头野鸭生产性能的影响

本试验研究蛋氨酸螯合锌对绿头野鸭生长性能及能量和蛋白质代谢的影响,探讨蛋氨酸螯合锌的最佳添加量。试验采用单因子完全随机试验设计,供试绿头野鸭54只,分为3个处理组,每组18只,设3个重复。第Ⅰ组为对照组,添加150 mg/kg硫酸锌;第Ⅱ、Ⅲ组为试验组,分别添加75 mg/kg硫酸锌 150 mg/kg蛋氨酸螯合锌3、00 mg/kg蛋氨酸螯合锌。试验期为8周,采用3层立体笼养,每周进行称重、称料,通过饲养试验、代谢试验,测定绿头野鸭生长率、耗料量及营养物质的代谢率。研究结果表明,各试验组的平均日增重显著高于对照组(P<0.05),分别提高了12.13%、11.96%,以4~7周效果最明显;能量和蛋白质代谢率均显著高于对照组(P<0.05);料肉比显著低于对照组;从试验的总体效果看,添加75 mg/kg硫酸锌 150 mg/kg蛋氨酸螯合锌效果较好。因此,提倡蛋氨酸螯合锌与硫酸锌混合饲喂绿头野鸭效果好,成本低,建议推广使用。     

蛋氨酸螯合锌对肉鹑增重及蛋白质代谢率的影响

本实验研究了蛋氨酸螯合锌对肉鹑增重及蛋白质代谢率的影响。试验结果表明：各试验组增重显著高于对照组（Ｐ＜００１）,而料肉比低于对照组,但未达到统计学显著水平。蛋白质表观代谢率第Ⅰ组（Ｐ＜００５）,第Ⅱ组（Ｐ＜００１）极显著高于对照组,第Ⅱ组显著高于第Ⅰ组（Ｐ＜００５）。     

蛋氨酸螯合锌替代无机锌对仔猪的影响

将 96头三元杂交仔猪设 4个处理组 ,每个处理组 3个重复 ,每个重复 8头仔猪。 4个处理组试验猪分别饲喂氧化锌来源 30 0 0mg/kg锌、蛋氨酸螯合锌来源 35 0mg/kg锌、氧化锌来源6 0mg/kg锌 +蛋氨酸螯合锌来源 4 0mg/kg锌、氧化锌来源 10 0mg/kg锌日粮 ,结果表明 ,蛋氨酸锌处理组、高锌处理组、混合锌处理组较正常锌处理组日增重、日采食量、饲料转化率高。蛋氨酸锌处理组与高锌处理组日增重、日采食量、饲料效率、腹泻发生率差异不显著 (P >0 .0 5 )。     

饲料中添加蛋氨酸螯合锌、锰对肉用仔鸡生产性能的影响

试验研究了日粮添加羟基酸螯合锌、锰代替无机锌、锰对肉用仔鸡生产性能影响。试验结果表明，以微量元素氨基酸螯合物代替无机盐可显著提高肉用仔鸡的生长速度和饲料转化率，改善肉鸡的健康状况，提高养殖的经济效益。     

日粮蛋氨酸螯合锌和硫酸锌水平对肉仔鸡生产性能的影响

试验探讨了日粮中不同硫酸锌和蛋氨酸螯合锌水平对肉用仔鸡生产性能、血液生化指标和胫骨锌及铁浓度的影响.选用1日龄岭南黄肉鸡720只,按体重和性别随机分为6组,每组4个重复,每个重复30只鸡.在玉米豆粕型基础日粮中分别以硫酸锌和蛋氨酸螯合锌形式添加40、80和120mg/kg锌饲喂试验鸡,预饲10d,正式试验期为21 d.结果表明,日粮锌源和锌水平对肉仔鸡平均日增重、平均日采食量、血清碱性磷酸酶活性、血清葡萄糖和总蛋白浓度以及胫骨锌和铁含量无明显影响,在锌添加水平为40mg/kg时,蛋氨酸螯合锌处理组耗料增重比显著低于硫酸锌组(P<0.05).     

蛋氨酸螯合锌替代硫酸锌对肉鸡生产性能、肉品质及抗氧化指标的影响

本试验旨在研究蛋氨酸螯合锌替代硫酸锌对肉鸡生产性能、肉品质及抗氧化指标的影响。试验选用1日龄体重接近的健康爱拔益加（AA）肉公鸡200只,随机分为2个处理,每个处理5个重复,每个重复20只鸡。各处理组肉鸡均饲喂基础日粮且将Zn的添加水平定为40 mg/kg,其中处理1组以硫酸锌形式添加锌,处理2组以蛋氨酸螯合锌形式添加锌。试验期为42 d。结果表明,①与硫酸锌相比,蛋氨酸螯合锌显著降低了22~42 d和1~42 d肉鸡的料重比（P < 0.05）,但对各阶段肉鸡平均日采食量、平均日增重以及21和42 d肉鸡体重均无显著影响（P > 0.05）。②蛋氨酸螯合锌替代硫酸锌对42 d肉鸡宰前体重、屠体重、全净膛重、腿肌重、屠宰率、胸肌率和腿肌率均无显著影响（P > 0.05）,但显著降低了42 d肉鸡全净膛率（P < 0.05）,增加了42 d肉鸡胸肌重、腹脂重和腹脂率（P < 0.05）。③蛋氨酸螯合锌替代硫酸锌对42 d肉鸡胸肌肉色、滴水损失和蒸煮损失均无显著影响（P > 0.05）。④与硫酸锌相比,蛋氨酸螯合锌显著提高了21和42 d肉鸡血清铜锌—超氧化物歧化酶（CuZn-SOD）活力以及42 d肉鸡血清总抗氧化能力（T-AOC）（P < 0.05）,降低了21 d肉鸡血清丙二醛（MDA）含量（P < 0.05）,但对21和42 d肉鸡血清谷胱甘肽过氧化物酶（GSH-Px）活力无显著影响。由此可见,蛋氨酸螯合锌替代硫酸锌具有提高肉鸡生产性能和抗氧化功能的作用。     

蛋氨酸螯合锌在黄羽肉鸡生产中的应用研究

1材料和方法1.1试验设计试验共设4个处理组,具体见表1。每处理组3重复,每重复50只鸡(雌雄各半)。表1试验设计处理组硫酸锌蛋氨酸螯合锌Zn-0--ZnSO4-6060mgZn/kg-Zn(Met)2-60-60mgZn/kgZn(Met)2-30-30mgZn/kg表2试验饲粮组成及主要营养指标饲料原料组成(%)1～21日龄22～42日龄43～63日龄玉米58.5063.1065.80次粉--2.50豆粕31.1526.7022.90植物油1.852.702.94鱼粉2.51.50-玉米蛋白粉1.271.451.40石粉1.271.201.14氢钙1.461.351.32预混料①2.002.002.00合计100.00100.00100.00营养成分②代谢能(MJ/kg)12.1212.5412.75粗蛋白质(%)21.0019.…     

The effects of carotenoids in quail breeder diets on egg yolk pigmentation and breeder performance

The effects of supplementation of 10?mg/kg (i) apoester, (ii) canthaxanthin, (iii) 3% clover extract, (iv) paprika oleoresin and (v) aztec marigold extract pigments to a wheat-based non-pigmented feed on hatchery performance and egg yolk pigmentation in quail breeders were investigated. At six weeks of age a total of 432 Japanese quail breeders were randomly divided into 6 treatments, each of which was replicated 3 times, with 24 birds (18 female:6 male) per replicate. Hatchability was significantly better in the apoester treatment compared to the control, canthaxanthin, clover extract and paprika oleoresin treatments (p?p?>?.05). Total carotenoids concentration, YCF score, yellowness (b*) and redness (a*) of egg yolk were significantly higher in pigment-supplemented treatments compared to the control treatment (p?a*) were highly correlated in all treatments (0.94; p?相似文献   

鸡蛋、乌鸡蛋、鹌鹑蛋营养成分的测定比较

禽蛋是人们生活中的重要营养源,是天然食物中最理想的蛋白质。本试验测定了鸡蛋、乌鸡蛋和鹌鹑蛋中的水分、脂肪、蛋白质、磷脂、胆固醇、维生素B2和氨基酸的含量,通过数据对比分析,得到如下结果:乌鸡蛋具有较高的营养价值,鹌鹑蛋由于含有很高的胆固醇,并不适合老年人的食用。鸡蛋的蛋白质、磷脂和氨基酸含量均低于乌鸡蛋和鹌鹑蛋,其营养价值最低。     

微波法制备人工养殖鲟鱼皮复合氨基酸螯合锌工艺的研究

本试验采用微波螯合工艺,通过单因素和正交试验研究在不同复合氨基酸与锌的配位比、微波时间、微波功率及反应pH条件下人工养殖鲟鱼皮复合氨基酸螯合锌的制备工艺。结果表明,螯合的最佳工艺为:反应体系pH为8,微波功率为340W,微波时间为10min,氨基酸与七水硫酸锌配位比为2:1,在此条件下复合氨基酸螯合锌产量为0.6172g,螯合率达68.72%。同时,对复合氨基酸螯合锌进行了红外表征及紫外吸收测定,发现复合氨基酸螯合锌的最大紫外吸收波长为215nm。     

Comparison of the effects of dietary supplementation of flavonoids on laying hen performance,egg quality and egg nutrient profile

1. The aim of this experiment was to compare the effects of dietary supplementation of hesperidin, naringin and quercetin on laying hen performance, egg quality and egg yolk lipid and protein profiles.

2. A total of 96 Lohmann White laying hens weighing an average of 1500 g at 28 weeks of age were randomly assigned to a basal diet and the basal diet supplemented (0.5 g/kg) with either hesperidin, naringin or quercetin. Each treatment was replicated in 6 cages in an 8-week experimental period. Data were analysed using one-way analysis of variance.

3. None of the dietary flavonoids affected laying performance and eggshell quality. Hesperidin and quercetin supplementations decreased albumen and yolk indexes.

4. As compared to the control group, egg yolk cholesterol content decreased and egg yolk protein content increased in response to dietary hesperidin and quercetin supplementation. The mean egg yolk cholesterol (mg/g) and protein (g/100 g) contents were 10.08/14.28, 16.12/14.08, 14.75/15.04 and 15.15/14.85 for the control group and groups supplemented with naringin, hesperidin and quercetin, respectively.

5. Egg yolk lipid and protein profiles were variable.

6. In conclusion, dietary supplementation of hesperidin or quercetin could be used in the diets during the early laying period to reduce egg yolk cholesterol and increase egg yolk protein, which may be attractive to consumers.     

乳酸锌对蛋鸡生产性能及蛋壳质量的影响

为研究乳酸锌对蛋鸡生产性能及蛋壳质量的影响,试验采用单因子随机分组试验设计,选取1600只360日龄的罗曼粉壳蛋鸡,随机分为4个处理组,每个处理组8个重复,每个重复50只鸡。础饲日粮为玉米-豆粕型粉状饲粮,处理1组饲喂基础饲粮+60 mg/kg一水硫酸锌(以锌计),处理2组饲喂基础饲粮+60 mg/kg乳酸锌(以锌计),处理3组饲喂基础饲粮+40 mg/kg乳酸锌(以锌计),处理4组饲喂基础饲粮+60 mg/kg锌(一水硫酸锌和乳酸锌提供的锌各一半)。结果表明,蛋鸡日粮中添加60 mg/kg乳酸锌(以锌计)能显著降低平均破蛋率、提高平均蛋壳强度(P<0.05)和明显提高平均蛋壳厚度,并且平均死亡率最低,但对蛋鸡的平均产蛋率、平均蛋重、平均日采食量和平均料蛋比无显著影响(P>0.05)。     

Effects of main cereal type and feed form on production performance,egg quality and egg sanitary indices of laying hens

ABSTRACT

1. The experiment was conducted to evaluate the effects of cereal types (maize or wheat) and feed forms (pelleted or mash feed) on production performance, egg quality and egg sanitary indices in laying hens.

2. Three hundred and sixty hens (Jinghong No. 1) at 18 weeks of age were randomly assigned to four treatments with six replicates of 15 hens per replicate according to a 2 × 2 factorial design with two cereal types (maize or wheat) and two feed forms (pelleted or mash feed).

3. Compared with the wheat-based diet, the maize-based diet improved (P < 0.05) average egg weight of laying hens. Yolk colour of hens fed with the maize-based diet was higher (P < 0.05) in comparison to those fed the wheat-based diet, while Haugh units were lower (P < 0.05) for the maize-based treatment. Egg mass and average daily feed intake of hens fed the pelleted diet were higher (P < 0.05) than of those fed the mash diet. However, the mash diet improved (P < 0.05) yolk colour compared with the pelleted diet. The percentage of dirty eggs for the wheat-based diet was higher (P < 0.05) than for the maize-based diet. The percentage of dirty eggs was higher (P < 0.05) in birds fed the pelleted diet compared with those fed the mash diet. There were interactions (P < 0.05) between cereal type and feed form, with regard to average egg weight and shell thickness.

4. In conclusion, dietary cereal type affected average egg weight, yolk colour and Haugh units in eggs, while feed form influenced egg mass, average daily feed intake and yolk colour.     

Effects of poppy seed meal on egg production and hatching results in quail (Coturnix coturnix japonica)

This study was carried out to determine the effects of poppy seed meal (PSM) on the egg production and hatching of quail. Two experiments were undertaken. In the first experiment, 240 quail, reared under the same conditions, were divided into four groups of 60 birds each (which were, in turn, subdivided into four subgroups of 15 each for experimental replicates). The first, second, and third experimental groups were fed ratios containing 5%, 15%, and 25% PSM, respectively, over 12 weeks. The control group received no PSM. Feed and water were supplied ad libitum and artificial light was provided for 16 h a day. During the first experiment, egg production, egg weight, and feed conversion ratio (FCR) were measured. In the second experiment, 240 female and 48 male quail were divided into four groups, as in the preceding experiment, and the birds were housed in cages at a ratio of one male to five females. The diets and their presentation to the quails were the same as in the preceding experiment. The results of the two experiments showed that the addition of PSM to the feed ratios increased egg production, feed consumption, and feed conversion per kg of eggs and per dozen eggs. However, PSM addition at all percentages significantly reduced (P<0.001) hatchability, mainly because of increased infertility and embryonic deaths.     

鹌鹑β-防御素10基因的克隆与表达及其体内分布的检测

为测定鹌鹑β-防御素10 (AvBD10)体外抗菌活性及检测其在鹌鹑脏器组织的分布,本研究应用RT-PCR方法从鹌鹑肺脏组织中扩增到鹌鹑AvBD10,经序列同源性分析,鹌鹑AvBD10与鸡AvBD10的氨基酸序列同源性最高(83.8％).将该基因亚克隆到表达载体pGEX-6p-1中进行原核表达,SDS-PAGE电泳表明,鹌鹑AvBD10重组蛋白分子量约为31ku.该重组蛋白经纯化后测定其体外抗菌活性,结果显示,鹌鹑AvBD10重组蛋白具有广谱的抗菌活性.采用定量RT-PCR法检测到AvBD10在鹌鹑脏器组织中广泛表达.