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氨基酸营养对母猪繁殖性能的影响 总被引：1，自引：0，他引：1
介绍母猪对氨基酸的营养需要，主要阐述赖氨酸、苏氨酸、精氨酸以及几种支链氨基酸在母猪营养中的作用，特别是对母猪繁殖性能的影响。为了解母猪氨基酸营养和繁殖性能的关系提供参考。 相似文献
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母猪繁殖性能的高低直接影响现代集约化养猪的生产成绩。影响母猪繁殖性能的因素很多,例如品种、管理、环境和营养等。本文综述了营养和饲养管理对母猪繁殖性能的调控。1营养因子对母猪繁殖性能的影响1.1能量和氨基酸能量和氨基酸摄入量对泌乳和随后的繁殖性能均很重要。葡萄糖 相似文献
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含硫氨基酸对家禽营养和免疫应答影响研究进展 总被引：1，自引：0，他引：1
《现代畜牧兽医》2017,(3)
含硫氨基酸(蛋氨酸和半胱氨酸)在动物健康和细胞功能方面都起到许多关键作用,被认为是一种功能性氨基酸,其通过参与和调节机体重要代谢通路来调节生长发育和繁殖性能,提高健康水平及生存质量。作为家禽日粮的第一性限制氨基酸——蛋氨酸,对家禽的生产及繁殖性能、免疫应答影响显著。本文对含硫氨基酸对鸡和鹅的营养作用及免疫应答的影响进行了阐述。 相似文献
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氨基酸作为构成蛋白质的主要原料和基本单位在动物体内发挥作用,是生物体内不可缺少的营养成分。L-精氨酸是条件必需氨基酸,也是功能性氨基酸,在妊娠母猪生理、免疫、繁殖等方面均有重要影响。通过综述精氨酸的生物学作用、合成与代谢,改善宫内发育迟缓,以及对母猪繁殖性能和胎儿生长发育等方面的影响,为其在饲料中的合理应用提供参考。 相似文献
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支链氨基酸作为猪的必需氨基酸,具有重要的生物学功能,特别是对泌乳母猪生产性能影响的研究,近年来受到高度重视。日粮中添加适当比例支链氨基酸,对进一步提高母猪泌乳力、繁殖性能、仔猪生产性能等都有重要意义。 相似文献
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鸡对饲料氨基酸有效利用率的研究 总被引：1，自引：0，他引：1
采用Sibbald“真代谢能”法测定饲料原料的氨基酸有效利用率。试验鸡分别强饲玉米、大豆粕和鱼粉 ,测定鸡强饲后的氨基酸排出量。结果表明 ,不同种类饲料原料的氨基酸利用率存在差异 ,玉米与大豆粕、鱼粉间差异显著 (P <0 0 5)。不同种类氨基酸之间利用率也有差异。 3种饲料原料的氨基酸真利用率均大于表观利用率 ,其中玉米的差异达到极显著水平 (P <0 0 1 ) ,表明内源性氨基酸对氨基酸利用率有影响 ,且这种影响随饲料原料中粗蛋白质水平的下降而增大。 3种饲料原料的氨基酸利用率在去盲肠鸡与正常鸡之间存在差异。盲肠微生物对饲料原料的氨基酸利用率有影响 ,且对不同种类氨基酸的影响有差异 ,这种影响不能通过内源性氨基酸的校正而消除。另外 ,内源性氨基酸的排泄量在去盲肠鸡大于正常鸡。表明内源性氨基酸也受到盲肠微生物的影响 相似文献
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阿拉善荒漠草地牧草氨基酸组成特点与营养价值研究 总被引：3，自引：3，他引：0
对阿拉善荒漠草地３８种优势牧草氨基酸总量、必需氨基酸、含硫氨基酸、限制性氨基酸含量及必需氨基酸指数（ＥＡＡＩ）的组成特点进行了研究。结果表明,氨基酸总含量为２．４７％～２２．５０％;各科牧草氨基酸总含量顺序为：百合科＞豆科＞蒺藜科＞菊科＞禾本科＞藜科＞蔷薇科＞柽柳科＞蓼科;必需氨基酸含量为０．９７％～８．９２％,同时满足ＥＡＡ／ＮＥＡＡ＞６０％,ＥＡＡ／ＴＡＡ＞４０％ 的牧草有２３种;各科牧草必需氨基酸含量占氨基酸总量比值依次为：蔷薇科＞菊科＞藜科＞豆科＞蓼科＞禾本科＞百合科＞柽柳科＞蒺藜科;含硫氨基酸含量为０．２８％～１．４０％,含硫氨基酸占氨基酸总量比值从高到低依次为柽柳科、藜科、蓼科、豆科、蔷薇科、蒺藜科、禾本科、菊科、百合科;内蒙古白绒山羊限制性氨基酸总含量为０．７０％～３．２２％;３８种牧草的ＥＡＡＩ值,对羊肉为０．９１４～１．０１０,对山羊绒为０．９７６～１．２５０,对山羊毛为０．９５１～１．２１９。阿拉善荒漠草地牧草是当地白绒山羊和绵羊优良的饲料来源,对山羊毛和羊绒的产量和品质有重要的作用。 相似文献
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Analysis of Regular Nutritional Components and Amino Acid Contents of Mongolia Bullock Muscle Grazed in Kubuqi Desert 总被引：1，自引：0，他引：1
In order to evaluate the Mongolia muscle characteristics and nutritional value, six Mongolia bullocks aged 4 years grazed in Kubuqi desert were chosen to analyze the regular nutritional components and amino acid contents of Mongolia muscle.The results showed that the contents of water, crude protein (CP), crude fat (EE), crude ash (ash), calcium and phosphorus of Mongolia muscle (fresh) were 68.21%, 22.60%, 6.49%, 2.69%, 0.58% and 0.55%, respectively.A total amino acid (TAA) content of beef was 24.297 g/100 g, essential amino acid content was 10.265 g/100 g, the proportion of essential amino acid justified and exceeded the FAO/WHO standard.The ratio of essential amino acid and total amino acid contents (EAA/TAA) was 42.25%, the ratio of essential amino acid and the non-essential amino acid (EAA/NEAA) was 73.15%.In functional amino acid, the content of palatable taste amino acid and sweet flavor amino acid in total amino acid was 46.891%.In addition to valine, essential amino acid contents of Mongolia muscle were superior to ideal protein of FAO/WHO standard, the percentage of valine reached 83.972% in ideal protein.These results indicated that Mongolia muscle belonged to the comprehensive nutrition and high quality protein food on the evaluation of the regular nutrient content and the amino acid content of beef. 相似文献
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为了评价蒙古牛肉的肉质特性与营养价值,本研究选择6头4岁的常年放牧在库布齐沙漠的蒙古阉牛,进行了牛肉常规营养成分及氨基酸含量的测定分析。结果显示,牛肉中水分、粗蛋白质、粗脂肪、粗灰分、钙和磷含量分别为68.21%、22.60%、6.49%、2.69%、0.58%和0.55%;牛肉中总氨基酸含量为24.297 g/100 g,必需氨基酸含量为10.265 g/100 g,必需氨基酸的构成比例符合并超过FAO/WHO公布的标准。必需氨基酸占总氨基酸含量的42.25%,必需氨基酸与非必需氨基酸比值为73.15%。功能性氨基酸中,鲜味氨基酸和甜鲜味氨基酸含量为总氨基酸的46.891%。另外,必需氨基酸中除缬氨酸之外其他氨基酸全部优于FAO/WHO规定的理想蛋白质模式,缬氨酸含量达到理想蛋白质的83.972%。因此,从牛肉的常规养分含量和氨基酸的营养价值方面来评定,蒙古牛肉属于营养全面的优质蛋白质食物。 相似文献
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本文综述了影响生长猪氨基酸利用的主要因素,探讨了养猪生产中有关氨基酸营养问题。结果表明:通过测定体沉积蛋白质(PD)中氨基酸的沉积、生理氨基酸损失(主要是皮肤和毛发、肠道内源氨基酸损失)与不可避免的氨基酸的分解代谢来估测氨基酸的需要量,估测氨基酸需要量的数据必须建立在蛋白质沉积、活体量、饲喂水平、饲料原料组成和饲料原料的可利用氨基酸含量上。既然PD是氨基酸需要量的决定因素,在建立日粮最佳氨基酸水平时,必须认真考虑活体重或动物间的差异对PD的影响。因此,饲料组成与机体蛋白质中氨基酸组成的变化对用于蛋白质沉积需要的可利用氨基酸利用的影响必须进行更精确的定量。 相似文献
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Transfer of six amino acids through rumen epithelium of sheep has been studied on mucous and serous sides. Amino acids were classified into two groups: 1. lysine-arginine-glutamic acid, 2. glycine-alanine-leucine. The transfer of amino acids in triads was measured after 60 min. incubation. To determine amino acids transfer through rumen epithelium, three concentrations of amino acids were used: 1500: 150 and 15 mumol per 50 ml. In the first group of amino acids, the highest transfer of arginine was found in comparison with lysine and glutamic acid in all concentrations. The lowest transfer was found in glutamic acid. It follows from this that initial concentration of amino acids in the first group had no effect on amino acids transfer as far as the transfer of amino acids was as follows in all concentrations: arginine greater than lysine greater than glutamic acid. On the other hand, the composition of amino acids and initial concentration of amino acids in the second group exhibited the marked dependence on the transport of amino acids. The transfer of amino acids at the concentration of 1500 mumol per 50 ml was as follows: the passage of amino acids was the highest while this was lowest in alanine and leucine, at the concentration 150 mumol per 50 ml the highest transfer was found in alanine, it was lower in glycine and lowest in leucine and at the concentration 15 mumol per 50 ml the transfer of glycine was highest, lower in leucine and lowest in alanine.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
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S C Zicker M S Spensley Q R Rogers N H Willits 《American journal of veterinary research》1991,52(7):1014-1018
The concentrations of 23 amino acids in the plasma of 13 healthy foals were determined before suckling, when foals were 1 to 2 days old, 5 to 7 days old, 12 to 14 days old, and 26 to 28 days old. The ratio of the branched chain amino acids to the aromatic amino acids was also calculated at the 5 time points. Analysis of the concentrations at the 5 ages revealed a significant temporal relationship for each amino acid ranging from a polynomial order of 1 to 4 inclusively. There were significant differences between several concentrations of amino acids in plasma at specific sample times; however, no consistent patterns were revealed. The concentrations of amino acids in healthy foals were markedly different from previously determined values in adult horses. The significant differences in the concentrations of amino acids in plasma of healthy foals at the 5 ages may represent developmental aspects of amino acid metabolism or nutrition. 相似文献