共查询到16条相似文献,搜索用时 156 毫秒
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《中国草食动物科学》2015,(3)
利用屠宰测定和检测分析方法研究了郏县红牛的肉用性能。试验选择郏县红牛10头,经繁育场育肥6个月后屠宰,按照年龄和性别分成3组,即公牛组(A)、阉牛Ⅰ组(B)、阉牛Ⅱ组(C),进行屠宰性能测定和检测分析。结果表明:短期育肥后郏县红牛具有较高的肉用性能,屠宰率(60.65±7.93)%、胴体产肉率(83.69±2.05)%、净肉率(50.63±1.44)%、眼肌面积86.94 cm2±12.14 cm2、肉骨比(5.22±0.88):1、优质牛肉率(29.69±1.07)%、高档牛肉率(14.62±5.77)%,3组间均差异不显著;牛肉中蛋白质含量高,脂肪酸中不饱和脂肪酸含量46.29%~51.59%,必需氨基酸8.5%;公牛组牛肉胆固醇含量291.00 mg/kg,阉牛组447.60 mg/kg;红牛肉锌含量33 mg/kg。结论:郏县红牛牛肉蛋白含量高,脂肪酸中多不饱和脂肪酸含量和必需氨基酸含量高;郏县红牛肉用性能优良,优质牛肉率和高档牛肉率高,可用于生产高档牛肉。 相似文献
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郏县红牛是产于河南省平顶山市郏县的全国八大良种黄牛之一,因其毛色多呈红色,故称郏县红牛。郏县红牛具有适应性强、抗病力强、牛肉品质好等诸多特性,是不可多得的肉牛资源,在上世纪80年代曾达到养殖高峰。随着后来的诸多原因,整个产业不断萎缩,面临着良种繁育体系不健全、种质资源开发不足、种群数量逐年减少、产品开发落后等诸多问题。现今为了更好地实现乡村振兴,郏县政府大力推动郏县红牛产业的发展,为了郏县红牛的进一步开发和产业化发展,本文基于生产要素从几个方面提出思路,为郏县红牛产业的发展提供思路基础。 相似文献
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为了促进郏县红牛的保种安全性.通过对郏县红牛主产区牛群的调查,认识到在现代肉牛生产体系中,郏县红牛属于一个良好的母本品种,具有很多优良特性.提出要依据保种理论建立保种群体,尽量提高保种群体的安全性;以发展促进保种,不断选育提高,合理利用导入杂交.作者认为,主动保种是郏县红牛长期保种的有效途径. 相似文献
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ZHANG Hua-ju XU Ya-bo WANG Lin-lin SUN Bin-bin LI Zhi-gang DING Ya-jun SUN Hong-xia 《中国畜牧兽医》2017,44(12):3482-3490
In order to study the beef traits and beef quality of Jiaxian Red bull with crossbred beef cattle, 5 purebred Jiaxian Red bull, 5 Red Angus cattle×Jiaxian Red bull F1 generation, 5 Simmental cattle×Jiaxian Red bull F1 generation and 5 Charolais cattle×Jiaxian Red bull F1 generation were chosen and assigned into groups A,B,C and D for continual finishing for 3 months of age under the same feeding and management conditions and slaughtered at the end of the trial. The results showed that there were no significant difference in body height, body length, chest girth and cannon circumference between Red Angus cattle×Jiaxian Red bull F1 generation and purebred Jiaxian Red bull, the same as in Charolais cattle×Jiaxian Red bull F1 generation (P>0.05). The weight of head, skin, fore hooves and tail, the skin thick, esophagus, trachea, liver, spleen, lung, kidney, and carcass meat percentage, loin eye area and the meat bone ratio in crossbred beef cattle groups were not significant differences compared with purebred Jiaxian Red bull (P>0.05), but its hind legs wide in carcass was significantly higher than that of purebred Jiaxian Red bull (P<0.05). The high-grade meat weight and high quality meat weight in Red Angus cattle×Jiaxian Red bull F1 generation were 70.22 and 105.22 kg, respectively, and was the highest in four groups,but the high-grade beef percentage among four groups did not show significant differences (P>0.05). The high quality meat percentage in Red Angus cattle×Jiaxian Red bull F1 reached 34.43%, was significantly higher than that of Jiaxian Red bull and Simmental cattle×Jiaxian Red bull F1 generation (P<0.05), and was higher than that of Charolais cattle×Jiaxian Red bull F1 generation (P>0.05). In terms of meat quality, the content of inosinic acid that related with the meat flavor in Red Angus cattle×Jiaxian Red bull F1 was the highest in four groups, while the content of unsaturated fatty acid and the flavor related amino acid, such as aspartic acid, glutamic acid, glycine and alanine, in Charolais cattle×Jiaxian Red bull F1 were the highest in four groups,and their values were 53.85% and 8.04%, respectively. To sum up, the results suggested that there was no significant difference in body development and beef traits using Red Angus cattle, Simmental cattle and Charolais cattle to improve Jiaxian Red bull, while Red Angus cattle crossbred with Jiaxian Red bull could moderately improve the weight of high-grade beef and high-quality beef, and Charolais cattle could moderately improve the beef quality of Jiaxian Red bull. 相似文献
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为了研究郏县红牛与不同品种肉牛杂交后代的肉用性能和肉品质情况,试验选取红安格斯牛、西门塔尔牛、夏洛莱牛与郏县红牛的杂交1代公牛各5头,纯种郏县红牛5头,分为试验A组(郏县红牛公牛)、B组(红郏F1代公牛(红安格斯牛×郏县红牛))、C组(西郏F1代公牛(西门塔尔牛×郏县红牛))和D组(夏郏F1代公牛(夏洛莱牛×郏县红牛))4个试验组,在同样的饲养管理条件下,持续育肥3个月后屠宰,利用屠宰测定和检验分析的方法对郏县红牛及其不同杂交品种的体尺发育、肉用性能和肉品质进行分析测定。结果表明:采用红安格斯牛、夏洛莱牛改良郏县红牛,在体高、体斜长、胸围和管围方面与郏县红牛纯种牛相比均无显著性差异(P>0.05);屠宰测定方面,杂交后代组的头重、皮厚、皮重、前二蹄重和尾重,屠体器官食道、气管、肝脏、脾脏、肺脏、肾脏的重量,以及胴体产肉率、眼肌面积、肉骨比与郏县红牛纯种牛相比均无显著性差异(P>0.05),但其胴体后腿宽显著高于郏县红牛纯种牛(P<0.05);红郏F1代公牛高档肉块重和优质肉块重最高,分别为70.22和105.22 kg,但高档牛肉率4组之间差异不显著(P>0.05),红郏F1代公牛优质牛肉率达到34.43%,显著高于郏县红牛和西郏F1代公牛(P<0.05),高于夏郏F1代公牛(P>0.05)。在肉品质方面,红郏F1代公牛与肉品风味有关的肌苷酸含量最高,而不饱和脂肪酸含量和与鲜味有关的氨基酸(天门冬氨酸、谷氨酸、甘氨酸和丙氨酸)含量均为夏郏F1代公牛含量最高,分别为53.85%和8.04%。结果提示,采用红安格斯牛、西门塔尔牛和夏洛莱牛改良郏县红牛,没有在体尺发育和肉用性能方面表现出显著优势,但采用红安格斯牛改良郏县红牛可提高郏县红牛肉用性能的潜力,可适度提高高档牛肉和优质牛肉肉块重量,而夏洛莱牛改良郏县红牛可适度提高牛肉品质。 相似文献
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本研究旨在检测郏县红牛成纤维生长因子13(fibroblast growth factor 13, FGF13)基因的拷贝数变异(copy number variation, CNV)及其与生长性状之间的相关性分析。本研究利用实时定量PCR(real-time quantitative PCR, qPCR)技术,以57头郏县红牛为研究对象,检测FGF13基因CNV,并利用皮尔逊相关分析进行FGF13基因拷贝数与郏县红牛生长性状的关联分析。结果表明,郏县红牛FGF13基因的相对拷贝数高于对照组秦川牛(P<0.05),在郏县红牛群体中,FGF13基因CNV位点存在拷贝数增加Gain,拷贝数正常Normal和拷贝数减少Loss三种类型;关联分析结果显示,FGF13基因的相对拷贝数与郏县红牛的体斜长呈显著的正相关(P<0.05)。该研究结果表明,FGF13基因的CNV位点与郏县红牛的生长性状显著相关,可作为分子标记应用于郏县红牛的分子标记辅助选择育种工作中。 相似文献