鸡粪饲料,草粉生物饲料喂猪试验

本试验是使用含鸡粪３０％的试验配合饲料Ａ、含草粉生物饲料２５％的试验配合饲料Ｂ和对照配合饲料Ｃ，通过９组（每组８头）试验猪，每种配合饲料设三个重复组，进行饲养试验，以研究各种饲料的饲养效果和经济效益。结果表明：对照配合饲料Ｃ组日增重为７０８克，比试验配合饲料Ａ组（６７６克）、Ｂ组（６６５克）均高，料重比较低（Ａ：３．６７、Ｂ：３．７４、Ｃ：３．４８），但试验配合饲料较对照配合饲料成本低（Ａ：１．５     

蛋鸡产蛋后期日粮添加复合纤维素酶的饲养效应

试验依据复合纤维素酶可将畜禽日粮中植物纤维分解为葡萄糖进而提高饲料营养价值的原理，在蛋鸡产蛋后期日粮中分别添加活性为１２００ＩＵ／ｇ的复合纤维素酶０．１％、０．３％、０．６％、０．９％，进行饲养对比试验。结果表明：以添加０．３％效果最好，比对照组产蛋率提高８．２３％，只日来食量下降０．５２％，料蛋比降低９．１２％，死淘率降低５０％，每只蛋鸡产蛋后期（６５～７４周龄）可净增收入０．６４元，经济效益较     

褐壳蛋鸡饥饿法强制换羽的研究

４８００余只５０７日龄海兰褐商品蛋鸡实施饥饿法强制换羽,结果：试验鸡群６０日龄内死淘率为３．４６％,换羽后产蛋高峰８７％８０％以上产蛋率维持了８９ｄ,平均蛋重６６．１ｇ／个,高峰期只鸡日产蛋５７ｇ,换羽后蛋壳质量有了明显好转。褐壳蛋鸡饥饿法强制换羽的...     

产蛋鸡日粮中添加Vc的效果试验

选取海兰商品蛋鸡１０８只，分为对照和试验Ⅰ、Ⅱ３组，每组３６只，分别饲喂添加０、１００、２００ｍｇ／ｋｇＶｃ的蛋鸡日粮。４２天的试验结果：Ⅰ组提高蛋鸡产蛋数６．３６％，饲料转化效率提高６．７％，经济效益增加１７．０２％；Ⅱ组降低蛋鸡产蛋数１．４５％，降低饲料转化效率２．９４％，比对照组少收入６．３％。说明适宜的Ｖｃ添加量能显著提高产蛋鸡的生产性能。     

降低蛋鸡生产成本的措施

近年来，我国蛋鸡饲养呈稳定增长态势，蛋鸡业靠蛋价攀升来增加效益的可能性已经很小，因此养鸡场应当在降低生产成本上挖掘潜力。现提出以下措施，供大家参考。１降低饲料成本１．１采用优质配合饲料用优质配合饲料喂鸡是最经济、最节省饲料的措施。鸡可获得的各种营养成份全面而均衡，料蛋比可达２．３～２．４∶１。１．２调整饲养，节约饲料消耗根据鸡在不同生理时期对营养需要量不同的特点，及时调整饲料配方中的各种营养成分，既适用鸡的需要，又可降低成本。我国蛋鸡的饲料标准中对产蛋鸡产蛋水平分为三段：２１～４０周龄为产蛋上升…     

草粉配合饲料养鹅试验

试验选用１５０只３０日龄狮头鹅,随机分成３组进行草粉配合饲料养鹅试验,试验Ⅰ组加１５％草粉,试验Ⅱ组加２０％的草粉,对照组不加草粉,结果表明：试验Ⅰ、Ⅱ和对照组平均日增重分别为６８．６５、６９．０４和６８．１０克,经分析３组之间差异不显著,料肉比分别...     

TR饲料替代部分全价配合饲料对蛋鸡生产性能的影响

试验选用５７６只４８周龄海兰商品蛋鸡随机分成２组，以ＴＲ饲料替代１０％的蛋鸡全价饮料进行包头试验。结果表明，试验组与对照组的产蛋率和料蛋比差异不显著；平均蛋和理分别为６０．８５ｇ和６２．０１ｇ 。     

花粉喂鸵鸟增加产蛋量与成鸟数

同济大学花粉应用研究中心王开发等与上海洛克德鸵鸟公司陆雁勇进行的复方花粉饲料添加剂饲养非洲鸵鸟的试验，选择鸟况相近的３组９只（每组３只，１雄２雌），各组均饲喂全价配合饲料，试验１组和２组分别加喂复方花粉添加剂２０ｇ及４０ｇ。加喂花粉前两个月各组均产蛋...     

提高母鸡产蛋率方法

提高母鸡产蛋率方法１喂红辣椒粉法：在鸡饲料中加入红辣椒粉、苜蓿粉各１％，并加入少量的植物油，产蛋率可提高。２加喂海藻法：蛋鸡饲料中掺入海藻，可使蛋的重量增加，产量提高，蛋壳的厚度和强度增加，蛋黄占整个蛋的比重增加。３喂药法：在６００ｇ鸡的配合饲料中添...     

舍温对猪饲料报酬的刺激效应

沿用传统饲养方式，进行了暖棚与敞圈养猪饲料报酬的对比试验。结果表明，日增重暖棚猪比敞圈猪多９４．９３ｇ，提高饲料报酬５０．０６％，头均增加收益２７２．８７元；肉料比暖棚组与敝圈组分别为１：６．１和１：９．４９，每千克增重暖棚组节约饲料３．３９ｋｇ，节料率提高３５．７２％；育肥一头１１０ｋｇ重的肉猪，可缩短饲养期１８２ｄ，提高时效４９．８６％。     

Influence of sumac (Rhus Coriaria L.) and ginger (Zingiber officinale) on egg yolk fatty acid,cholesterol and blood parameters in laying hens

The aim of the study was to evaluate the potential effect of different levels of sumac (Rhus coriaria L.) seed powder and ginger (Zingiber officinale) root powder on egg yolk fatty acid composition, blood/yolk cholesterol in laying hen. A total of 63 (ATAK‐S: Domestic Turkish Laying Hens) laying hens (average weight: 1470 g each hen, 25‐weeks of age) were assigned to seven treatment diets including sumac seed (S) and ginger root powder (G) at 0 g/kg (control), 10 g/kg (S1), 20 g/kg (S2), and 30 g/kg (S3); 10 g/kg (G1), 20 g/kg (G2), or 30 g/kg in rations respectively, for 8 weeks. After a two‐week adaptation period to cages, the hens were allocated to 7 groups with 9 replicates of 1 hen in per cage each. The replications were allotted equally into the upper and lower cages to minimize the effects of cage level. In this study, egg yolk cholesterol had a decrease (p <0.05) in supplemented diet( sumac seed and ginger root powder). Fatty acid content in yolk; saturated fatty acid, monounsaturated fatty acids, polyunsaturated fatty acids and rate of n6/n3 were not significant (p <0.05). However, dietary supplementation with sumac and ginger powder reduced and yolk/blood cholesterol concentrations in laying hens. Supplementation of sumac and ginger affected on HDL, there was found a significant effect (p < 0.05) in treatment groups. Moreover, LDL positively decreased in all treatment groups compared with the control group. The findings of this study suggested that feeding sumac and ginger tend to be decreasing cholesterol levels in both yolk and blood on laying hens. It can be concluded that ginger root and sumac seed powder can be used as an effective feed additive to improve fatty acid composition and yolk and blood cholesterol in ATAK‐S laying hens.     

饲料原料对蛋鸡生产性能和鸡蛋品质的影响

用三种来源不同的饲料饲喂商品蛋鸡,分别是全玉米豆粕饲料(A组)、河北购进的典型商品饲料(B组)和用杂粕配制的饲料(C组)。结果显示,A组产蛋率最高(76.8%),和C组(74.7%)差异显著(P<0.05)。平均蛋重三个组之间差异不显著。平均日耗料量A组(120.3g)低于B组(127.6g),高于C组(116g)。A组料蛋比和C组接近(2.43:1和2.42:1),均优于B组(2.63:1)。常规蛋品质三个组之间差异不显著,但是鸡蛋内容物中一些成分的含量存在差异。C组鸡蛋的水分含量稍高于A组和B组。三种鸡蛋中有毒有害物质含量均低于国家要求的标准,鸡蛋中没有检测出细菌。     

Digestible valine-to-digestible lysine ratios in brown commercial layer diets

Considering that Val may potentially be a limiting amino acid for laying hens, an experiment was carried out to determine the ideal digestible Val-to-Lys ratio in the diets of 42- to 54-wk-old brown layers. Literature reports are divergent, with ratios varying between 86 and 102%, which suggests that further research is needed. Five different digestible Val-to-Lys ratios were evaluated: 84 (0.555% digestible Val), 88, 92, 96, and 100%. Feed intake (g/hen per day), egg production (%), egg weight (g), egg mass (g), FCR (kg/dozen and g/g), egg quality (yolk, eggshell, and albumen %), and egg weight (g) were evaluated. Egg weight, egg internal quality, and weight gain were not influenced by the different dietary digestible Val-to-Lys ratios. The evaluated ratios linearly affected feed intake and had a quadratic effect on egg production, egg mass, and FCR (kg/dozen and g/g). Based on the evaluated parameters, the ideal digestible Val-to-Lys ratio is 92%, corresponding to 0.607% digestible Val or 567 mg/hen per day of digestible Val.     

饲料代谢能水平对农大3号小型蛋鸡生产性能的影响

180只140日龄的农大3号小型蛋鸡随机平均分为A、B、C、D、E五组,每组6个重复,每个重复6只鸡,体重大小基本一致,各组间生产性能差异不显著。分别饲喂代谢能水平11.5MJ/kg、11.3MJ/kg、11.1MJ/kg、10.9MJ/kg和10.7MJ/kg的饲料,其他营养成分含量设计上保持一致。通过30周的观察,发现在产蛋高峰前饲喂稍低能值的饲料(10.9MJ/kg)有利于采食量的增加和产蛋率的迅速上升。在一定饲料代谢能值范围内,饲料能值的高低对小型蛋鸡采食量影响不显著,所以从产蛋高峰期开始,必须使用代谢能水平较高的日粮,才能满足小型蛋鸡维持高产蛋率对能量的需求。综合来看,饲料代谢能为11.3MJ/kg时,小型蛋鸡有较高的产蛋量和饲料报酬。     

2‐Hydroxy‐4‐methylthio butanoic acid and DL‐methionine for Japanese quails in production

An experiment was performed using 1,000 laying Japanese quails to assess the availability of two alternative dietary methionine sources. Treatment 01 = Basal Feed that is deficient in digestible methionine + cystine (Met + Cys). The other treatments were constituted by Met + Cys levels of 0.8, 1.60 and 2.40 g/kg, supplemented with DL‐Methionine‐99%, HMTBA‐88% and HMTBA‐84%, being 10 treatments in total. The following characteristics were studied: feed intake (g/bird/day), egg production (egg/day × 100), egg weight (g/egg), egg mass (g/egg), feed conversion per egg dozen (kg feed/dozen eggs), feed conversion per egg mass (kg feed/kg eggs), relative yolk weight (g/100 g of egg), relative albumen weight (g/100 g of egg), relative shell weight (g/100 g of egg), shell thickness (mm) and specific gravity (g/cm³). In general result comment, supplemental methionine sources must be included in the poultry diet. The different methionine sources affect the performance of quails, and the increase in the levels within each source improves the performance variables. Significant effect was observable on performance variables and egg quality variables, being that DLM‐99% is superior to the other sources. The HMTBA‐88% source is superior to the HMTBA‐84% source for the same aforementioned variables. In conclusion, the bioefficacy values of the HMTBA‐88% and HMTBA‐84% sources compared to the DLM‐99% source on an equimolar basis were 81 and 79%, respectively, for the performance variables, and 83 and 74 while the methionine sources were equivalent for the variables related to egg quality.     

强制换羽对蛋鸡生产性能和蛋品质的影响

旨在研究强制换羽对蛋鸡生产性能和蛋品质的影响。选取80周龄海兰褐蛋鸡4 500只,分为A、B、C组,每组1 500只,于试验组Ⅰ区饲养;选取60周龄海兰褐蛋鸡3 000只,分为D、E组,每组1 500只,于试验组Ⅱ区饲养;另选取60周龄海兰褐蛋鸡1 500只（F组）,于对照组Ⅲ区饲养。试验组Ⅰ区和试验组Ⅱ区位于同一栋鸡舍,对照组Ⅲ区位于另外一栋鸡舍。采取饲料、饮水、光照控制的方式对A~E组鸡群进行强制换羽处理;F组不进行强制换羽处理。试验包括7 d的预试期和56 d的正试期。在正试期内,测定各组鸡群的产蛋率、蛋品质指标、死亡率。结果表明：与换羽前相比,强制换羽后A、B、C组的平均产蛋率的提高幅度为27.1%,强制换羽后D、E组的平均产蛋率的提高幅度为16.1%,换羽后F组的平均产蛋率的降低幅度为5.5%;5个接受强制换羽处理的试验组（A~E组）与对照组（F组）相比,蛋重增加2.5%,蛋壳强度提高11.8%,蛋白高度提高8.8%,蛋形指数提高3.3%,蛋壳尖端的厚度提高14.8%;5个接受强制换羽处理的试验组（A~E组）的平均死亡率为2.5%,对照组（F组）的死亡率为1.5%。综上所述,强制换羽技术的应用可以明显提高海兰褐蛋鸡的产蛋率,并提升蛋品质。     

液体蛋氨酸羟基类似物对蛋鸡生产性能、鸡蛋品质、养分利用率和血液生化指标的影响

试验用38周龄健康的罗曼粉壳蛋鸡600只,经饲喂玉米-豆粕-麦麸型基础日粮(蛋氨酸0.22%、蛋氨酸+胱氨酸0.48%)10d后,随机分为4个处理,每个处理5个重复,每个重复30只蛋鸡。处理1为对照组,饲喂基础日粮;处理2在每千克基础日粮中添加1.325gDL-Met;处理3和处理4以液体蛋氨酸羟基类似物(HMB,活性物质88%)在等摩尔基础上按100%或50%分别替代处理2的DL-Met。试验期10周。试验结果表明:在基础饲粮中添加DL-Met以满足高产蛋鸡的蛋氨酸需要可提高3～10周的产蛋率,并极显著地提高了3～10周的蛋重、日产蛋重、干物质、钙、磷和粗蛋白的表观代谢率(P<0.01),极显著降低了饲料转化率比(P<0.01),对采食量、鸡蛋蛋形指数、破蛋率、软蛋率、蛋黄重、蛋黄比例、哈氏单位、蛋壳重、蛋壳厚度、蛋壳强度、鸡蛋水分和粗蛋白含量无显著影响(P>0.05)。在等摩尔基础上HMB以100%或50%替代DL-Met,对蛋鸡生产性能、鸡蛋品质和养分代谢率的影响与DL-Met无显著差异。结果表明在蛋鸡玉米-豆粕-麦麸型饲粮中HMB的生物学效价与DL-Met相同。     

虾蛋白肽对蛋鸡产蛋性能和蛋品质的影响

研究和探讨了虾加工副产物的酶解产物（Enzymatic Hydrolysis Production,EHP）对蛋鸡产蛋率和蛋品质的影响。以虾加工副产物为原料,应用复合生物酶酶解技术制备EHP,选择产蛋率在80%以上的300日龄笼养褐壳蛋鸡288只,随机分成3组,在基础日粮中分别添加0、1.5g/100g、3g/100g虾加工副产物EHP,并替代相应重量的鱼粉,试验期为60天。EHP,可显著提高鸡蛋的哈夫单位（P〈0.05）,试验组蛋鸡产蛋率平均提高3.14%,料蛋比相应低于对照组。表明虾加工副产物EHP可显著提高产蛋高峰期过后处于衰减期的鸡蛋的哈夫单位及产蛋率。     

鲜茶叶粉对蛋鸡生产性能、蛋品质、蛋黄脂肪酸水平及经济指标的影响

文章旨在评估日粮添加不同水平的鲜茶叶粉对蛋鸡生产性能、蛋品质及蛋黄脂肪酸水平的影响。试验将672只产蛋性能一致的28周龄海兰褐壳蛋鸡随机分为4组,每组4个重复,每个重复42只。对照组饲喂基础日粮,处理组蛋鸡分别饲喂基础日粮+20（T1）、40（T2）和60?mg/kg（T3）鲜茶叶粉,试验为期6周。结果：与对照组相比,T3组蛋鸡蛋重显著提高6.12%（P＜0.05）。T3和T2组蛋鸡料蛋比较对照组和T1分别显著降低了4.07、6.67%和2.12%、4.77%。T2和T3组蛋壳厚度较对照组分别显著提高了2.06%和2.27%（P＜0.05）。此外,T3组蛋黄颜色a值较对照组和T1组分别显著提高了34.78%和20.16%（P＜0.05）。T3组蛋黄胆固醇含量分别较其他组显著降低了10.90%、7.23%和8.16%（P＜0.05）,而对照组蛋黄硫代巴比妥酸值较处理组分别显著提高了54.91%、59.52%和57.65%（P＜0.05）,而T3组蛋黄C16：1脂肪酸水平较对照组和其他组分别显著降低25.60%、20.05%和24.51%（P＜0.05）。结论：日粮添加60?mg/kg鲜茶叶粉可以显著提高蛋鸡的蛋重、饲料效率和蛋壳厚度,降低蛋黄胆固醇及硫代巴比妥酸值。 [关键词]鲜茶叶粉|蛋鸡|生产性能|蛋品质|脂肪酸     

几种中药方剂对蛋鸡产蛋中后期生产性能的影响

105羽390日龄罗曼蛋鸡,随机均分5组。以4种中药方剂分别添加饲喂组1-组4鸡群,组5为对照。分别观察用药前(第0周)、用药后各组每周平均产蛋率、羽日蛋重、每周平均枚蛋重以及用药期平均料蛋比、破蛋率等生产性能指标。结果:至第11周时,对照组鸡群每周平均产蛋率仅77.55％,每周平均日蛋重仅52.72g/羽,分别比试验前下降13.72％和4.82 g;而组1和组2鸡群产蛋率仅分别下降4.76％和0.21％,日蛋重反而分别增加0.28g/羽和3.41g/羽。其余2组结果与对照组相近。组1和组2平均料蛋比分别为2.25和2.2,显著小于对照组5。组1和组2破蛋率比组5低4—5倍。结论:方1和方2可以明显提高产蛋中后期蛋鸡生产性能。