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1.
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)。 相似文献
2.
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。 相似文献
3.
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。 相似文献
5.
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<001),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<005),第Ⅱ组(P<001)极显著高于对照组,第Ⅱ组显著高于第Ⅰ组(P<005)。 相似文献
6.
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。 相似文献
7.
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). 相似文献
9.
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 )。 相似文献
10.
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。 相似文献
11.
随机选取 7日龄健康环颈雉雏雉 72只 ,分成 3组 ,每组 2 4只。每组基础日粮相同 ,Ⅰ组为对照组 ,添加 0 0 4 %硫酸锌 ;Ⅱ、Ⅲ组为试验组 ,分别添加 0 0 4 %蛋氨酸螯合锌、0 0 2 %蛋氨酸螯合锌 +0 0 2 %硫酸锌。饲养试验结果表明 ,各试验组体长、翅长增长均显著大于对照组 (P <0 0 5 ) ,各试验组平均日增重均极显著高于对照组 (P >0 0 1) ,同时各试验组料重比均低于对照组 (P <0 0 5 ) ,各试验组尾长增长也大于对照组 (P <0 0 5 )。此外 ,各试验组成活率均高于对照组。综合比较 ,Ⅱ、Ⅲ组饲喂效果好且无显著差异 (P >0 0 5 )。 相似文献
12.
主要探讨了蛋氨酸螯合锌对雉鸡繁殖机能的影响。随机选取 40周龄雉鸡 54只 ,分成 3组 ,每组 1 8只 ,雌雄比例 (♀∶♂ )为 5∶1。每组基础日粮相同。Ⅰ组为对照组 ,Ⅱ、Ⅲ组为试验组 ,分别在基础日粮中添加 0 0 4 %硫酸锌 ,0 0 4 %蛋氨酸螯合锌 ,0 0 2 %蛋氨酸螯合锌 +0 0 2 %硫酸锌 ,经 48d试验 ,结果表明 ,各试验组总产蛋数、产蛋总重及产蛋率均极显著高于对照组 (P <0 0 1 ) ,种蛋受精率、孵化率均高于对照组 (P >0 0 5) ,同时料蛋比极显著低于对照组 (P <0 0 1 )。平均蛋重及蛋概略养分在各试验组与对照组间无显著差异 (P >0 0 5)。在试验组中进行综合比较 ,Ⅲ组试验效果好于Ⅱ组。 相似文献
13.
1. The aim of the present study was to estimate genetic parameters for average egg weight (EW) and egg number (EN) at different ages in Japanese quail using multi-trait random regression (MTRR) models. 2. A total of 8534 records from 900 quail, hatched between 2014 and 2015, were used in the study. Average weekly egg weights and egg numbers were measured from second until sixth week of egg production. 3. Nine random regression models were compared to identify the best order of the Legendre polynomials (LP). The most optimal model was identified by the Bayesian Information Criterion. A model with second order of LP for fixed effects, second order of LP for additive genetic effects and third order of LP for permanent environmental effects (MTRR23) was found to be the best. 4. According to the MTRR23 model, direct heritability for EW increased from 0.26 in the second week to 0.53 in the sixth week of egg production, whereas the ratio of permanent environment to phenotypic variance decreased from 0.48 to 0.1. Direct heritability for EN was low, whereas the ratio of permanent environment to phenotypic variance decreased from 0.57 to 0.15 during the production period. 5. For each trait, estimated genetic correlations among weeks of egg production were high (from 0.85 to 0.98). Genetic correlations between EW and EN were low and negative for the first two weeks, but they were low and positive for the rest of the egg production period. 6. In conclusion, random regression models can be used effectively for analysing egg production traits in Japanese quail. Response to selection for increased egg weight would be higher at older ages because of its higher heritability and such a breeding program would have no negative genetic impact on egg production. 相似文献
14.
本试验采用典型饲粮配方,以氧化锌形式补充锌,观察短期(4周)饲喂高锌饲粮对母鸡产蛋性能及蛋可食部分锌含量的影响。试验得出:(1)饲粮添加锌量超过2000ppm 时,母鸡采食量减少、饲料转化率下降、产蛋成绩下降、卵巢和输卵管萎缩、卵泡数目明显减少;(2)饲粮添加1000ppm 锌时,可使蛋可食部分锌含量提高31%,且对母鸡的饲料转化率和产蛋成绩均无不良影响。 相似文献
15.
为研究同一添加水平的4种锌源对AA肉仔鸡小肠形态及金属硫蛋白(MT)表达的影响,选取1日龄AA肉仔鸡480只,随机分成4组,每组6个重复,每个重复20只鸡。在玉米-豆粕型基础饲粮(含锌22.68 mg/kg)中分别添加硫酸锌(ZnSO4)、赖氨酸锌(Lys-Zn)、蛋氨酸锌(Met-Zn)、甘氨酸锌(Gly-Zn),配制成4种含锌量均为90 mg/kg的试验饲粮,ZnSO4组为对照组,试验期21 d。结果表明:4种锌源对肉仔鸡小肠形态和肝脏MT 含量均无显著影响(P>0.05)。 Gly-Zn和Met-Zn组小肠MT mRNA相对表达量和胰脏MT含量显著高于对照组(P<0.05),但Lys-Zn组与对照组差异不显著(P>0.05)。在3种氨基酸螯合锌中,Lys-Zn组胰脏MT含量、十二指肠MT mRNA相对表达量显著低于其他两种螯合锌组(P<0.05)。由此可见,Gly-Zn和Met-Zn对促进肉仔鸡小肠MT mRNA表达,提高胰脏MT含量效果较好。 相似文献
16.
This study was conducted to investigate the effects of dietary dried baker’s yeast on laying performance, egg traits and some
blood parameters of quails. In the experiment a total of 342 Japanese quails ( Coturnix coturnix japonica) aged ten weeks were equally divided into six groups of 57 (three replicates of 19 quails each). Six levels (0, 4, 8, 12,
16 and 20%) of dried baker’s yeast were included in isonitrogenous and isocaloric diets. The experimental period lasted 14
weeks. At the end of the experiment, there were no significant differences among the groups in body weight, feed intake, protein
intake, egg production, feed efficiency, egg yolk index and egg haugh unit. Blood serum levels of total protein, triglyceride
and cholesterol were not affected by dietary dried baker’s yeast. Diets containing 4 and 8% of dried baker’s yeast increased
the egg weight significantly ( p < 0.01). The inclusion of dried baker’s yeast at the level of 20% to the diets reduced egg shell thickness and egg albumen
height. It is concluded that dried baker’s yeast can be used up to 16% in the diets of laying quails without adverse effects
on the measured parameters. 相似文献
17.
通过对50例蛋用型鸡尸体剖检和组织病理学观察,发现病鸡极度消瘦、脱水,羽毛囊出血,鸡爪出血,鸡冠苍白,贫血,趾骨隆凸,胸骨内侧有黄白色奶油样肿瘤结节。在肝、脾、肾、卵巢、输卵管、肺、骨髓、腺骨、肠道等可见胞浆内充满球形的、嗜酸性颗粒的骨髓瘤细胞,呈灶状或弥漫性的分布,该变化是骨髓细胞瘤病病理学的特征性变化,具有诊病意义。有关蛋用型鸡发生骨髓细胞瘤病在国内外尚未见报道。 相似文献
18.
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。 相似文献
19.
The objective of this study was to evaluate the effects of quantitative feed restriction, along with dietary supplementation with a probiotic blend (Protexin) as a natural growth promoter, on the performance, water consumption, mortality rate and carcass traits of meat‐type quails. A total of 250 1‐day unsexed quails were randomly allocated to five equal groups in a completely randomized design. The first group (A) fed a basal diet without any restriction (24 hr/day); the second group (B1) fed the basal diet for 20 hr/day; the third group (B2) fed the basal diet enriched with probiotic (0.1 g/kg diet) for 20 hr/day; the fourth group (C1) fed the basal diet for 16 hr/day; and the fifth group (C2) fed the basal diet enriched with probiotic (0.1 g/kg diet) for 16 hr/day. Birds were fed ad‐libitum from 0–14 days of age, and then the feed restriction regimes started from 14 till 28 days of age. Results showed that quails in the control‐group consumed more feed and water than the other treatment groups ( p < .01), however their body weights did not differ ( p > .05) compared with the other treated groups. The best feed conversion values were achieved in quails supplemented with probiotic blend (B2 and C2) in comparison with the other groups ( p < .01). Feeding probiotic had a positive effect on bird health which reduced the mortality rate. Further, mortality rate was significantly reduced ( p < .05) by feed restriction, with or without probiotic supplementation. No carcass parameters were significantly affected ( p > .05) by treatments. Our results show that quail could be reared under a feed restriction system, for 4–8 hr daily, along with dietary supplementation of probiotic as growth promoter for better growth performance. 相似文献
20.
本试验旨在研究饲粮中不同添加量的半胱胺螯合锌(Zn-CS)对育肥猪免疫性能、抗氧化能力、血清生化指标及肠道微生物的影响。选取90头体重为(64.67±1.15)kg的健康育肥猪,随机分为5组,每组3个重复,每个重复(圈)6头。对照组饲喂基础饲粮,试验组分为Ⅰ、Ⅱ、Ⅲ、Ⅳ组,分别饲喂在基础饲粮中添加60、90、120、150 mg/kg Zn-CS的试验饲粮。结果表明:1)与对照组相比,Ⅰ、Ⅱ组血清免疫球蛋白A(IgA)含量显著提高(P<0.05)。2)与对照组相比,Ⅲ、Ⅳ组血清丙二醛含量显著降低(P<0.05),Ⅱ、Ⅲ、Ⅳ组血清总抗氧化能力显著提高(P<0.05)。3)与对照组相比,Ⅱ组血清生长激素含量显著提高(P<0.05),Ⅱ组血清生长抑素含量显著降低(P<0.05),Ⅱ、Ⅲ、Ⅳ组血清胰岛素含量显著提高(P<0.05)。4)各组在门水平上相对丰度超过1%的优势菌门有厚壁菌门、变形菌门、拟杆菌门,各组在属水平上相对丰度超过1%的优势菌属有梭菌属、肠杆菌属、Romboutsia、Turicibacter、Terrisporobacter、放线菌属。由此可见,饲粮中添加Zn-CS能够提高育肥猪免疫性能与抗氧化能力。在本试验条件下,建议Zn-CS在育肥猪饲粮中的适宜添加量为120 mg/kg。 相似文献
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