我国唯一的河流型奶水牛——槟榔江水牛的开发利用思考     

霍金龙 《中国牛业科学》2010,36(5):59-61

综合介绍了水牛由奶、肉、役兼用向奶畜专用转变的发展趋势以及槟榔江水牛品种的形成及其培育、体型外貌特征、遗传学特征、生产性能、存在的问题等,并对该水牛品种的有效开发和利用提出了建议。  相似文献   

德宏州水牛产业发展与探讨   总被引：1，自引：0，他引：1  

梅国栋 《中国牛业科学》2010,36(5):68-70

对德宏州10余年来水牛产业发展历程进行回顾,对发展现状、优势、存在问题等进行了总结与探讨,并对今后产业发展提出了自己的思路、措施和建议。  相似文献   

不同还原剂预处理精子对水牛ICSI介导转基因效果影响的初步研究     

陈自洪  ;孟凡丽  ;王丹  ;刘玉兵  ;陆凤花  ;刘庆友  ;石德顺 《广西农业生物科学》2014,(3):537-542

本研究探讨了还原剂β-巯基乙醇（β-ME）、二硫苏糖醇（DTT）及谷胱甘肽（GSH）预处理水牛精子对水牛ICSI介导转基因（ICSI-mediated gene transfer,ICSI-Tr）效果的影响。结果显示,β-ME、DTT和GSH预处理水牛精子对提高ICSI介导转基因的效果不显著（p〉0.05）,但GSH能显著提高2原核（PN）的形成率（p〈0.05）。  相似文献   

不同饲草料组合配方养殖奶水牛的效益分析     

杨国荣  李乔仙  袁福锦  王鹏武  尹尚芬  何永珍  高月娥 《中国牛业科学》2011,37(5):28-30

[目的]针对奶水牛饲草料不足及营养缺乏的现状,开展了不同饲草料组合配方对奶水牛产奶量及养殖效益的研究。[方法]试验设3个不同的饲草料配方处理组,每处理组供试摩杂奶水牛10头,试验正试期100 d,对正试期内的投入及产出进行了养殖效益分析。[结果]紫花苜蓿配方组（紫花苜蓿鲜草15 kg/头＋混合精料2 kg/头＋稻草2 ...  相似文献   

摩拉、尼里及其中国水牛杂交后代的若干泌乳生理特性的观察   总被引：1，自引：0，他引：1  

陆天水  陈伟华  庄康  韩正康  梁纪豪  吴坚新 《南京农业大学学报》1987,(3)

选用泌乳摩拉水牛19头、尼里14头和三品杂11头,测定排乳反射潜伏期,各乳叶的乳池乳、反射乳和残留乳,并采乳样测定干物质含量,乳脂率和乳脂球直径。观测排乳速率的动态变化。 结果表明:排乳反射潜伏期以摩拉较长,且易出现排乳抑制,尼里居次,三品杂较短。乳池乳依次为5.24±3.92,3.13±2.83,2.58±1.07％;反射乳为82.29±20.66,86.83±31.55,91.08±18.19％;残留乳为12.17±5.17,5.79±2.25,10.60±6.43％。三部分乳的干物质含量、乳脂率和乳脂球直径一般以残留乳最高,乳池乳较低。左右两侧乳叶泌乳量相似。排乳持续时间4—12分钟,排乳高峰多在第2—4分钟,往往有排乳间断现象。  相似文献   

水牛胚胎体外生产研究综述     

孙燕潘红梅  张家骅 《中国农学通报》2004,20(4):17-17

近年来采用其它家畜上的程序来进行水牛体外胚胎生产（in vitro production,IVP）引起了越来越多的关注。水牛胚胎体外生产已获得了较高的卵母细胞成熟率、受精率和卵裂率,但囊胚发育率和体外胚的移植成功率仍较低,水牛IVP胚胎体外生产效率比黄牛低得多。在IVP技术应用于水牛生产育种之前,还有一些问题必须解决。本文对水牛胚胎体外生产的不同技术,包括未成熟卵母细胞的体外培养成熟和受精以及胚胎体外培养卵裂发育至囊胚等进行综述。文章还讨论了胚胎体外生产存在的问题及可能的解决方案。  相似文献   

Prevalence of Coxiella burnetii in milk collected from buffalo (water buffalo) and cattle dairy farms in Northwest of Iran     

《Comparative immunology, microbiology and infectious diseases》2019

The present study was conducted to determine the prevalence of C. burnetii in raw milk samples collected from water buffalos and cattle in Northwest of Iran (West Azerbaijan Province). A total number of 840 milk samples were randomly collected from buffalos and cattle belonged to three different geographical regions in west Azerbaijan (the map is necessary). The milk samples were collected seasonally during 2018 and the age of animals were recorded. All the milk samples were subjected to DNA extraction. Nested-PCR was used to detect C. burnetii based on the transposable gene IS1111. The results showed that 16.9% (95% CI: 14.5%–19.6%) of the examined milk samples (19.3% buffalo and 14.6% cattle samples) were positive for C. burnetii. There was a significant difference in C. burnetii shedding in milk between different age groups in cattle but not in buffalos (p value <0.05). The shedding of C. burnetii in milk was highly prevalent in summer (31.1%) (p < 0.05, 95% CI: 26.1%–38.4%). There were significant regional and seasonal variations in the prevalence of C. burnetii in the examined milk samples. It was concluded that buffalo population in west Azerbaijan should be considered as an important factor in the epidemiology of Q fever and consequently in public health.  相似文献   

水牛奶干酪功能活性肽的研究     

王钰潭  侯坤辉  王雪峰  赵存朝  黄艾祥 《中国奶牛》2019,(4):46-51

以水牛奶为原料,研制不同凝乳酶的水牛奶干酪,利用单因素试验、二次通用旋转方案筛选奶酪蛋白肽提取工艺,并研究蛋白肽的抗氧化功能及抑菌活性。结果表明,水牛奶奶酪蛋白肽最佳提取工艺为料液比26∶1、匀浆时间5min、转速10×1000r/min;4种水牛奶奶酪蛋白肽均具有较好的功能活性,其中贯筋藤凝乳酶奶酪的ABTS清除活性为82.22%、还原能力(RP)为52.96%、DPPH自由基清除能力为52.63%,对李斯特菌抑菌率达到86.33%、对沙门氏菌抑菌率达到55.36%。水牛奶干酪含有较丰富的功能活性物质,开发前景较好。  相似文献   

Use of additives to capture nitrogen in ammoniated wheat straw: Intake, ruminal parameters, digestibility and nitrogen utilization in buffaloes     

M. Ajmal Khan  M. Sarwar  M.S. Khan  M.S. Rehman  M. Nisa  W.S. Lee  H.S. Kim 《Livestock Science》2008,114(2-3):347-353

This study examined the influence of urea treated wheat straw (UTWS) ensiled with additives on feed intake, digestibility, ruminal characteristics and N utilization in Nili-Ravi buffalo bulls (Babulus bubalis) fed ad libitum. Wheat straw was treated on large scale with 4% urea at a 50% moisture level. The UTWS was ensiled with 6% CSL, 6% acidified molasses, 2% acetic acid and 2% formic acid on DM basis in four different cemented trench silos for 15 days. Four diets each having 50% dry matter (DM) from UTWS ensiled with acetic acid (AD), formic acid (FD), acidified molasses (MD) or corn steep liquor (CD) and 50% DM from concentrate mixture were fed to ruminally cannulated bulls in a 4 × 4 Latin square design. Ruminal total VFA, acetate, cellulolytic ruminal bacterial count, DM and NDF degradability were significantly higher with MD and CD diets compared with AD and FD diets. Intake of different feed fractions was higher in bulls fed MD and CD diets. Total tract apparent digestibility of nutrients was similar across all treatments. Nitrogen retention was higher in bulls fed MD and CD diets than those fed AD and FD diets. Ensiling UTWS with fermentable carbohydrates sources having low pH compared to organic acids increased the N fixation in the matrix of cell wall fiber thus slowing its release at ruminal level that probably enhanced the N synchronization with carbon skeleton (fiber fermentation) and this consequently improved the N utilization.  相似文献   

不同饲养方式对涪陵水牛生长性能的影响     

蒋安  高立芳  王琳  何玮  陈静  刑豫川  向白菊 《草业与畜牧》2012,(9):8-11

为了提高涪陵水牛的产肉性能，探索适合涪陵水牛的科学饲养模式，本试验研究了不同饲养方式对涪陵水牛生长性能的影响。挑选3Q头体重接近的涪陵水牛，随机分为A、B、C三组，A组采用栓系舍饲方式、B组则用半天放牧加补饲的方式、C组采取全天放牧加补饲，试验时间为3个月，通过每月末定期测定牛的体斜长、体高、胸围和管围四项指标反映生长发育情况。结果表明，半天放牧组的生长性能明显优于全天放牧组，而舍饲组优于放牧组。  相似文献