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《中国家禽》2016,(13)
为研究在产蛋后期蛋鸡日粮中添加0.025%低聚木糖对蛋鸡生产性能及蛋品质的影响,试验选择427日龄(61周龄)健康罗曼粉商品蛋鸡420只,随机分成2个处理,每个处理7个重复,分别饲喂基础日粮和添加0.025%低聚木糖的试验日粮。试验持续16周(63~78周龄)。结果:低聚木糖组产蛋率比对照组平均提高2.12%(P0.05),料蛋比比对照组平均下降3.74%(P0.01),采食量、产蛋量及蛋重无显著差异。试验组蛋壳强度、蛋白高度和哈夫单位均显著高于对照组(P0.01),分别比对照组提高6.05%、12.43%和9.66%。试验表明:产蛋后期蛋鸡日粮中添加0.025%低聚木糖可显著提高蛋鸡产蛋率和产蛋量,降低料蛋比,提高饲料利用率,还可改善产蛋后期的鸡蛋品质。 相似文献
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李进春何瑞李莉闫文婧 《饲料研究》2023,(10):44-47
试验旨在研究日粮中联合添加低聚木糖和丝兰粉对蛋鸡生产性能及脂质指标的影响。选择96只70周龄产蛋后期绿壳蛋鸡,随机分成4组,每组4个重复,每个重复6只蛋鸡。对照组绿壳蛋鸡饲喂基础日粮,试验Ⅰ组、Ⅱ组、Ⅲ组分别在基础日粮中添加50 mg/kg低聚木糖+100 mg/kg丝兰粉、100 mg/kg低聚木糖+200 mg/kg丝兰粉、200 mg/kg低聚木糖+300 mg/kg丝兰粉。试验期6周。结果显示,试验各组蛋鸡平均产蛋数、平均日采食量、蛋重、产蛋率和料蛋比差异不显著(P>0.05)。与对照组相比,试验各组鸡蛋哈夫单位、蛋白高度和蛋壳相对重具有提高的趋势;各组蛋黄相对重、蛋形指数、蛋黄粗脂肪含量差异不显著(P>0.05)。Ⅱ组和Ⅲ组蛋黄甘油三酯和总胆固醇含量显著降低(P<0.05),Ⅱ组蛋鸡血清中低密度脂蛋白胆固醇含量比对照组降低30.71%(P<0.05)。研究表明,在产蛋后期蛋鸡日粮中联合添加低聚木糖和丝兰粉具有协同增效作用,可以改善蛋鸡生产性能和蛋品质,调节蛋鸡脂质代谢,降低鸡蛋蛋黄胆固醇含量,日粮中添加低聚木糖制剂100 mg/kg+丝兰粉200 mg/kg效果较佳。 相似文献
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本试验旨在研究在蛋鸡日粮中添加酵母硒与低聚木糖及其互作对鸡蛋硒与胆固醇含量、蛋鸡脂质代谢、生产性能的影响。选择1 080只300日龄体质健康的蛋鸡,分为6个试验组,每个试验组4个重复,每个重复45只鸡。对照组饲喂基础日粮,试验1组在基础日粮添加0.01%低聚木糖,试验2组在基础日粮添加0.015%低聚木糖,试验3组在基础日粮中添加0.09 mg亚硒酸钠/kg饲料、试验4组在基础日粮中添加120 mg酵母硒/kg饲料,试验5组在基础日粮中同时添加0.01%低聚木糖、120 mg酵母硒/kg饲料。预饲1周,试验从44周龄持续到48周龄,为期5周(35 d)。结果显示,鸡蛋中的硒含量提高了,蛋黄中胆固醇含量降低了,酵母硒提高了产蛋率并降低了料蛋比。低聚木糖降低了蛋黄及血清中的胆固醇含量。同时添加120 mg酵母硒/kg、0.01%低聚木糖的饲料显著提高了产蛋率,降低了料蛋比,提高了血清中高密度胆固醇含量和鸡蛋中的硒含量,并降低了血清及蛋黄中的胆固醇含量,同时在产蛋率、料蛋比方面有正相关的作用,在提高鸡蛋硒含量及降低蛋黄胆固醇方面有微弱正相关的作用。 相似文献
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蛋鸡饲料中添加糖萜素对其生产性能影响的研究 总被引：3，自引：0，他引：3
糖萜素是从山茶属植物种子饼粕中提取的三萜皂甙类与糖类的混合物。具有抗应激和提高机体免疫力的功能。本试验研究在海兰褐蛋鸡饲料中添加糖萜素对其生产性能、肠道双歧杆菌和肠道内容物pH值的影响。试验表明,饲料中添加糖萜素可提高产蛋1.96%(P<0.05),料蛋比下降0.78%,蛋鸡上笼死亡率下降16.86%(P<0.01),能显著促进盲肠中双歧杆菌增殖(P<0.05),但对回肠中双歧杆菌增殖效果不明显。盲肠和回肠内容物pH值试验组较对照组均略有降低。 相似文献
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低聚木糖对商品蛋鸡产蛋性能及蛋品质的影响 总被引：13，自引：0，他引：13
将 12 6 0只新罗曼蛋鸡随机分为 7组 ,分别在其日粮中添加 0 .0 1% ,0 .0 15 % ,0 .0 2 % ,0 .0 2 5 %和 0 .0 3%的纯度为 35 %的低聚木糖 ,并设空白对照组以及 0 .1%果寡糖对照组。结果表明 :①日粮中添加 0 .0 15 %和 0 .0 2 %的低聚木糖可极显著提高蛋鸡日平均产蛋率、产蛋重、饲料转化率 (P <0 .0 1) ;②日粮中添加 0 .0 2 %的低聚木糖能极显著增加鸡蛋的蛋壳强度、蛋壳厚度和蛋壳率 (P <0 .0 1) ,而对蛋形指数、蛋黄比色、蛋黄率和哈夫单位等没有显著性影响 (P >0 .0 5 )。 相似文献
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低聚异麦芽糖对蛋雏鸡生长性能和肠道菌群的影响 总被引：1，自引：1，他引：0
本试验以7日龄海兰褐蛋雏鸡为研究对象,通过饲养试验和肠道菌群培养,研究低聚异麦芽糖替代抗生素对蛋雏鸡生长性能和肠道菌群数量的影响。试验期7周。结果表明:低聚异麦芽糖组和抗生素组的生长性能均显著好于对照组,且二者之间差异不显著;低聚异麦芽糖组比对照组和抗生素组显著增加了盲肠和回肠内容物的双歧杆菌和乳酸杆菌数量,与对照组相比,降低了肠道中的大肠杆菌数量。在饲料中添加0.3%的低聚异麦芽糖在一定程度上能够替代抗生素药物,能促进蛋雏鸡生长,显著增加盲肠和回肠内容物的双歧杆菌和乳酸杆菌数量。 相似文献
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为研制苦豆籽粕-双歧杆菌合生元并寻求二者的最佳配比,试验采用2%、4%、6%、8%苦豆籽粕液体培养基分别进行了两歧双歧杆菌、鸡白痢沙门杆菌和大肠杆菌进行了体外生长影响研究.结果表明:6%苦豆籽粕对两歧双歧杆菌的增殖作用最明显,与对照组相比差异极显著(P＜0.01).2%、4%、6%苦豆籽粕对鸡白痢沙门杆菌生长的影响与对照组相比差异显著(P＜0.05),对大肠杆菌生长的影响与对照组相比差异不显著(P＞0.05);8%苦豆籽粕对鸡白痢沙门杆菌生长的影响与对照组相比差异极显著(P＜0.01),对大肠杆菌生长的影响与对照组相比差异显著(P＜0.05). 相似文献
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Abou-Elezz Fouad Mohammed K Sarmiento-Franco L Santos-Ricalde R Solorio-Sanchez JF 《Tropical animal health and production》2012,44(5):1035-1040
This study aimed to evaluate the potential of Moringa oleifera fresh leaves (MOL) as feed supplement on the performance and egg quality of Rhode Island Red (RIR) hens under the tropical
conditions of Yucatan, Mexico. Forty-eight RIR hens were allocated in 12 floor pen replicates each with four birds. Thereafter,
the replicates were divided into three groups which were corresponded to ad libitum feed (control), ad libitum feed supplemented
with MOL T1 (AL + MOL) and restricted feed amount (20% lower than control) with MOL T2 (RCD + MOL), respectively. T1 (AL +
MOL) had higher egg laying rate (71.4% versus 66.6%), higher daily egg mass production (45.4 versus 41.9 g/day), lower feed
intake (121.3 versus 127.5 g/day) and better feed conversion ratio (2.8 versus 3.2 g feed:g egg) versus control. T2 / (RCD
+ MOL) had lower values of body weight, egg laying rate, egg weight and egg mass, and recorded better feed conversion ratio
than the control group. The control group recorded a higher percentage of pecked eggs versus T1 and T2 (6.5% versus 1.2% and
2.0 %). Similar intake of MOL (3.1 and 3.4 g DM/day) was recorded in T1 (AL + MOL) and T2 (RCD + MOL). Yolk color was improved
significantly in T1 (AL + MOL) than both control and T2 (RCD + MOL), while T2 (RCD + MOL) had eggs with lower yolk and higher
albumen percentages than the other two ad libitum groups. The results suggest that MOL could be used successfully as sustainable
tropical feed resource for RIR hens. 相似文献
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The effect of housing two Hyline strains of commercial laying hens White Hyline (W-98) and Brown Hyline (Hyline Brown) at
densities of 2, 3 or 4 per cage (1100, 733 or 550 cm2/hen, respectively) was investigated over 3 months. Hyline Brown layers gained more weight, laid more but lighter eggs, utilized
feed more efficiently and had a lower mortality than W-98 layers. Housing birds 2 or 3 per cage resulted in greater body weight
gain, higher egg production, heavier eggs, better feed conversion ratio and a lower mortality than housing them 4 per cage.
There were significant interactions between strain and stocking density for egg production, egg weight, egg output and mortality.
It is suggested that for egg production in semi-arid areas Hyline Brown hens could be used and housed at a density of 733
cm2/hen. 相似文献
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复合酸化剂抗蛋鸡热应激效果的研究 总被引：3，自引：0，他引：3
通过在日粮中添加复合酸化剂,研究其对蛋鸡生产性能和血液理化指标的影响,探讨复合酸对蛋鸡热应激的作用效果,并筛选出适宜的添加水平。结果表明:①复合酸A1、A2使产蛋率、蛋重和采食量分别提高0.82%￣8.25%、0.48%￣2.19%和0.92%￣3.66%,死淘率降低1.85%￣3.70%。②复合酸使蛋鸡血清ALP、GLU升高,LDH、BUN、UA及pH值降低,TP、ALB、GLOB变化呈降低趋势,A/G则相反;血清钙各组间差异不显著,血清磷则随着酸添加量的增加逐渐下降。③复合酸化剂能缓解夏季产蛋鸡的热应激,可以作为抗应激添加剂应用。A1、A2抗热应激的效果总体上优于乳酸宝,A2尤为明显。A1和A2的最适添加剂量分别为0.3%和0.2%。 相似文献
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选用４８周龄伊沙蛋鸡９０羽，随机分３组进行草粉组合饲料饲养试验，经６０天的试验。结果表明，用草粉配合饲料饲养蛋鸡能够取得与常规配合饲料相同的饲养效果，试验Ⅰ组，Ⅱ组，对照组的蛋均重分别为５７．１ｇ，５７．６ｇ５７．３ｇ，产蛋率分别为７３．９％，７４．２％，７４．４％，各组之间无显著差异，料蛋比分别为３．１０：１，３．０６；１，３．０７：１是基本一致。 相似文献
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D. V. G. Vieira F. G. P. Costa M. R. Lima J. G. de V. Júnior T. P. Bonaparte D. T. Cavalcante 《Journal of animal physiology and animal nutrition》2018,102(2):e686-e694
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. 相似文献
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生物纤维饲料在蛋鸡生产中的应用研究 总被引：1，自引：0，他引：1
生物纤维饲料是对玉米淀粉湿磨国工过程中的浸泡液，黄浆和玉米皮渣等副产品经生物发酵方法而形成的一种新型饲料。本文研究了生物纤维饲料在蛋鸡饲养中的饲喂效果。试验表明，半风干生物纤维饲料（含水分26．68％）以5％比例添加蛋鸡日粮中的饲喂效果与对照组相比，日均产蛋量提高6．4％，平均产蛋率提高6．05％，料蛋比下降13．01％，毛利润提高90．70％，而风干生物纤维饲料（含水分15．44％），则以10％比添加于蛋鸡日粮时，表现出较明显的增产效果，其与对照组相比，日均产蛋量提高4．04％，平均产蛋率提高4．18％，料蛋比下降4．09％，毛利润提高25．74％。 相似文献
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利用酵母和葵花粕代替日粮中的鱼粉组成无鱼粉日粮,以无鱼粉日粮和有鱼粉日粮对蛋鸡进行试验,结果为:饲喂无鱼粉日粮的试验组和饲喂鱼粉日粮对照组的产蛋率分别为67.96%和65.01%,差异不显著(P>0.05);只平均产蛋量为44.73g和42.41g,差异显著(P<0.05);平均蛋重为65.83g和62.29g,差异不显著(P>0.05);死亡率分别为1.69%和2.10%,差异不显著(P>0.05);试验组比对照组每生产1kg蛋饲养成本降低1.9%。因此无鱼粉日粮可代替鱼粉日粮在蛋鸡生产上应用。 相似文献