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Da Chuan Piao Tao Wang Jae Sung Lee Renato SA Vega Sang Ki Kang Yun Jaie Choi Hong Gu Lee 《畜牧与生物技术杂志(英文版)》2015,6(1)
Background
Metabolic profile was initially designed as a presymptomatic diagnostic aid based on statistical analyses of blood metabolites to provide an early warning of certain types of metabolic disorder. However, there is little metabolic profile data available about Korean Hanwoo cows. Therefore, this study aimed to determine the reference intervals of metabolic profile for Korean Hanwoo cows.Methods
Healthy animals (2,205) were selected and divided into early (day 1 to 95), middle (day 96 to 190) and late (day 191 to 285) period according to their gestating period. Metabolic profile including total protein (TP), albumin (Alb), urea (UREA), glucose (Glu), total cholesterol (T-Cho), long-chain fatty acid (LCFA), aspartate aminotransferase (AST), gamma-glutamyl transpeptidase (GGT), creatinine (Crea), calcium (Ca), inorganic phosphorous (iP) and magnesium (Mg) were analyzed using a TBA-40FR automatic biochemical analyzer. The data of Korean Hanwoo cows were then compared to those of the Japanese Wagyu cows.Results
Most of the data of the Korean Hanwoo cows were relatively higher than those of Japanese Wagyu cows, with the exception of Glu and GGT. This may indicate that the nutritional level of feed for the Korean Hanwoo cows was higher than that of the Japanese Wagyu cows because of the different feeding system. In particular, relatively higher levels of UREA and LCFA were observed in the Korean Hanwoo cows, and this may also contribute to the low reproduction efficiency.Conclusions
These findings may provide some theoretical basis for understanding the reproductive and feeding situation of Korean Hanwoo cows. 相似文献3.
旨在利用覆盖全基因组和性状的特异性SNPs标记预测和牛、西门塔尔牛与荷斯坦牛杂种优势,为牛杂种优势利用和选种选配提供参考依据。本研究分别利用牛Illumina Bovine HD 770 K和GGP Bovine 100 K芯片对464头和牛、1 222头西门塔尔牛和43头荷斯坦牛3个亲本群体进行基因型分型,并通过牛QTLs数据库筛选与目的性状对应的QTLs,对比牛参考基因组映射得到与初生重、周岁重、胴体重性状相关的特异性SNPs;然后构建覆盖全基因组和性状特异性SNPs两种标记状态同源矩阵,通过计算杂交组合亲本间的遗传距离来预测品种间杂种优势,并利用配合力分析验证较优组合的实际杂交效果。结果表明,基于全基因组和性状特异性SNPs计算的各杂交组合遗传距离差异不显著。在全基因组水平上,西门塔尔牛♂×荷斯坦牛♀(S×H)与和牛♂×荷斯坦牛♀(W×H)亲本间杂交组合遗传距离分别为0.346 1和0.338 9;在初生重、周岁重和胴体重性状上,S×H亲本间遗传距离分别为0.343 1、0.348 7和0.336 7,而W×H遗传距离分别为0.337 6、0.340 7和0.329 2;两种SNPs标记计算的遗传距离均为S×H较大,W×H次之。因此,在初生重、周岁重、胴体重性状上,S×H为较优杂交组合。通过分析德系西门塔尔牛♂×荷斯坦牛♀实际杂交群体的配合力,发现10个父系在初生重性状上一般配合力和特殊配合力均为正效应,最高效应值分别达到3.760 9和8.931 2。西门塔尔牛与荷斯坦牛杂交可在初生重、周岁重和胴体重获得较高的杂种优势。 相似文献
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旨在研究日粮中添加酿酒酵母培养物对和牛育肥效果的影响。选用健康无病、体重相近的和牛374头,随机分成3组,A、B组为试验组,日粮中添加不同水平的酿酒酵母培养物,C组为对照组,日粮中不添加酵母培养物;各组试验和牛每天早、晚各饲喂1次,正试期45 d;试验结束后对各组和牛进行称重,计算并比较各组和牛在试验期间的日增重;采用粪筛分析法评价各组和牛的饲料消化率。结果表明,A、B组在试验期间的日增重均显著高于C组(P<0.05),且B组日增重最大;A、B组试验末粪筛的第3层比例较试验前上升,且试验末粪筛的第3层黄色玉米碎屑均比C组少。综上提示,育肥和牛日粮中添加酿酒酵母培养物可以提高其日增重和饲料转化率。 相似文献
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[目的]为了在我国引进日本和牛这一高等级肉牛品种并迅速扩大纯种日本和牛的数量.[方法]分别采用CIDR+E2法和两次PGF2α法对胚胎移植受体牛做同期发情处理,采用一步细管法冷冻的日本和牛胚胎进行移植,观察妊娠率.[结果]表明,受体牛经CIDR+E2法和两次PGF2α法处理后12~48 h的发情率分别为82.7%和45.9%,两者之间差异显著(P<0.05),对90枚日本和牛胚胎进行一步细管法管内解冻,然后给62头CIDR+E2法处理和28头两次PGF2α法处理的受体奶牛移植,受胎率分别为43.5%和42.5%,产犊率分别为40.3%和39.3%,两者之间差异不显著(P>0.05).[结论]经同期发情处理的受体牛,只要其子宫环境及卵巢黄体发育良好,被移植日本和牛胚胎都能正常妊娠和产犊;用日本和牛胚胎对低产奶牛进行移植,经三代纯化即可获得纯种日本和牛. 相似文献
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Masahito SUGIMOTO Syuji KUZUOKA Chizuru YAYOTA Yukinobu SATO 《Animal Science Journal》2004,75(1):29-35
The effects of grazing and supplemental protein concentrations, provided during the grazing period, on subsequent finishing performance and carcass quality were investigated. This experiment was carried out using 15 Japanese Black cattle (Wagyu) steers. The steers were fed as follows: (i) grazing supplemented with moderate protein concentrate (GMP) (18% crude protein (CP); dry matter (DM) basis) before finishing, followed by feeding in a barn until slaughter; (ii) grazing supplemented with low protein concentrate (GLP) (14% CP; DM basis) before finishing, followed by feeding in the barn until slaughter; and (iii) no grazing before finishing (NG). From the end of the grazing season to the end of the growing period, the GMP and GLP steers were managed in the same way as the NG steers. All of the animals were fed the same diet in the finishing period (9 months to 28 months). None of the three treatments affected the average daily gains. For all treatments, chilled carcass weights were more than 450 kg and did not differ significantly among the groups. The longissimus muscle areas in the grazed steers were numerically larger than in those receiving the NG treatment. Fat thickness was significantly greater (P < 0.05) in the NG steers than in the grazed steers. The intramuscular fat and marbling scores were not affected in the grazed steers. In conclusion, the carcass quality of grazed steers was similar to that of the NG steers at a similar final age, and the quantity of meat in the NG steers would be less than that of the GMP and GLP steers. Therefore, spring‐born Wagyu steers should be grazed using the GLP supplement before fattening. 相似文献
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Yi Zhang Kounosuke Otomaru Kazunaga Oshima Yuji Goto Ichiro Oshima Susumu Muroya Mitsue Sano Rena Saneshima Yukiko Nagao Aoi Kinoshita Yasuko Okamura Sanggun Roh Akira Ohtsuka Takafumi Gotoh 《Animal Science Journal》2021,92(1):e13600
This study aimed to investigate the effects of high and low levels of energy intake during the entire gestation period on the skeletal muscle development, organ development, and adipose tissue accumulation in fetuses of Wagyu (Japanese Black) cows, a breed with highly marbled beef. Cows were allocated to a high-nutrition (n = 6) group (fed 120% of the nutritional requirement) or low-nutrition (n = 6) group (fed 60% of the nutritional requirement). The cows were artificially inseminated with semen from the same sire, and the fetuses were removed by cesarean section at 260 ± 8.3 days of fetal age and slaughtered. The whole-body, total muscle, adipose, and bone masses of the fetal half-carcasses were significantly higher in the high-nutrition group than the low-nutrition group (p = 0.0018, 0.009, 0.0004, and 0.0362, respectively). Fifteen of 20 individual muscles, five of six fat depots, nine of 17 organs, and seven of 12 bones that were investigated had significantly higher masses in the high-nutrition group than the low-nutrition group. The crude components and amino acid composition of the longissimus muscle significantly differed between the low- and high-nutrition groups. These data indicate that maternal nutrition during gestation has a marked effect on the muscle, bone, and adipose tissue development of Wagyu cattle fetuses. 相似文献
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选择20头10月龄日本和牛与雷琼牛F1代杂交牛,10头10月龄雷琼牛,以相同营养水平饲养管理方式进行20个月高强度育肥比较,分析和牛与雷琼牛F1代与雷琼牛的育肥增重效果、产肉性能。结果表明:F1杂交牛育肥期末增重显著高于雷琼牛(P〈0.01);F1杂交牛在整个育肥期日增重均显著高于同时期的雷琼牛(P〈0.01),其中F,杂交牛育肥3~6月日增长速度最快,雷琼牛前3个月日增长速度最快;F1杂交牛的宰前体重、胴体重、净肉重和眼肌面积均显著高于与雷琼牛(P〈0.01),屠宰率、净肉率分别提高7.28%和6.25%。试验结果表明,日本和牛与雷琼牛杂交,F,代杂交牛经育肥后,其增重效果、屠宰性能均优于雷琼牛。 相似文献
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BI Jiang-hua FENG Chun-tao LI Su-xia LIN Hui-liang SUN Gui-lai FANG Jin-wu LI Shu-jing 《中国畜牧兽医》2017,44(6):1784-1789
In order to rapid propagation of purebred Wagyu, the experiment were conducted to study the effects of high intensity superovulation, embryo sex identification and different breeds recipient cattle on calving, gestation period and calf birth weight. Wagyu were superovulated repeatedly for nine times with a 30 days interval. The results indicated that the average number of total embryos collected at the second time was 22.78, which was significantly higher than those of the fifth to ninth times (P< 0.05),and there was no significant difference between the other groups (P> 0.05).There was no significant difference between the number of transferable embryos in the first to third times (P> 0.05). The available embryos number of the second times superovulation were significantly higher than those of the fourth to ninth times (P< 0.05),and were remarkably significantly higher than those of the seventh and ninth times (P< 0.01). There were no observably differences of pregnant rate and calving rate between sex identified embryos, and regular embryos respectively (P> 0.05).The female calf percentage of sexed embryos was 95.56%. The calving rate of the Simmental-catalo receptors were higher than those of Wagyu-catalo and Holstein receptors (P> 0.05). The gestation period of Wagyu-catalo were remarkably significantly greater than those of Simmental-catalo and Holstein receptors (P< 0.01), however, there was no significant difference between Simmental-catalo and Holstein receptors (P> 0.05). The birth weight of female calves calved by Simmental-catalo receptors were higher than those of Wagyu-catalo (P< 0.05), which was extremely significantly higher than those of Holstein receptor (P< 0.01). The male calf birth weight was no significant difference in the three breeds receptors (P> 0.05). There were obvious differences between male and female calves in gestation and birth weight with in the same recipient breed. 相似文献