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  黑毛
    The results showed that the three mutations G284A, T309C and T364C found in Chinese native pigs were consistent to the mutation found in the European Large Black individuals.
    结果发现11个品种的所有个体都存在3个突变:G284A、T309C和T364C,与以往报道中欧洲大黑猪发生的突变相同,推测中国地方猪种的毛色属于显性黑毛色性状。
    donors (Japanese black cattle) were superovulated with four treatments. The results showed that two treatments(FSH 20AU + PGFZa 25mg and FSH 20AU + PGF2a Estrumate 0 .7mg) got more transferable embryos.
    采用四种超数排卵处理方法对19头日本肉用黑毛和牛进行了超数排卵试验,结果以FSH 20AU+PGF2A25mg和FSH 20AU+PGF2a类似物制剂(Estrumate)0.75mg两个处理所获的可用胚数量较多。
短句来源
    The body weight(BW) of grey ones at birth,6,12,18 and 24 months were 32.25178.45252.10335.26和403.83 kg,the black ones were 31.71176.80251.89337.68和404.52 kg,the yellow ones were 31.36174.77246.72335.46和400.55 kg.
    初生、6、12、18和24月龄体重灰毛系分别为32.25、178.45、252.10、335.26和403.83 kg,黑毛系分别为31.71、176.80、251.89、337.68和404.52kg,红毛系分别为31.36、174.77、246.72、335.46和400.55 kg。
短句来源
    Breeding and Reproduction of Black Wagyu in Huhehaote of Inner Mongolia
    黑毛和牛在内蒙古呼和浩特地区的繁育
短句来源
    Its unique characteristics lie in its rapid growth, the black, soft and thin hair on the whole body, the thick and pachy skin, a high ratio of lean meat of delicate quality and delicious taste with little smell of mutton.
    其独特之处在于全身黑毛,生长发育快,板皮厚满,皮毛质软细小,瘦肉率高,含脂量低,肉质鲜嫩,味美膻气少。
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    Studying on Genes Related with Melanin in Black Chicken
    乌骨鸡“乌色”相关基因的研究
短句来源
    An Analysis of Genetic Parameters for Chinese Black and White Dairy Cattle in Jiangsu
    江苏省黑白花奶牛遗传参数分析
短句来源
    Pathological Diagnosis of the Ascarid Obstruction in Intestine of a Black Bear
    黑熊蛔虫性肠梗阻病理诊断
短句来源
    COMPREHENSIVE UTILIZATION OF BRASSICA SPP PRODUCTS——Ⅰ. FEEDING EFFECTS OF BLACK AND WHITE COWS ON RESIDUE CAKE OF Both-Low RAPESEED XIANGYOU NO. 11
    油菜产品综合利用的研究——Ⅰ.双低油菜湘油11号菜籽饼饲养黑白花奶牛的试验
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    STUDIES ON THE SERUM PROTEIN POLYMORPHISMS AND THE GENETIC RELATIONSHIPS OF THE BLACK BONE CHICKENS
    乌鸡的血清蛋白质多态性与其遗传关系的研究
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Effects of garlic and black grape extracts on the activity of adenosine deaminase from cancerous and noncancerous human urinary
      
A black-scholes formula for option pricing with dividends
      
We obtain a Black-Scholes formula for the arbitrage-free pricing of European Call options with constant coefficients when the underlying stock generates dividends.
      
The impact of different interference substrate materials for improving the color travel effect was studied, and the influence of white and black background on the hue and the color travel effect were studied.
      
Nutrient Dynamics of Fine Roots in the Mixed Plantation of Poplar and Black Locust
      
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The F_1 of Shorthorn×Mongolian cross adapts itself very well to the environmental conditions of the northern part of Hopei Province.They are strong-built, with low succeptibility to diseases. The F_1 has highly improved conformation over the Mongolian cattle, being more symmetrical, with refined head, increased body width; back and loins are straight, wide and long; ribs well-sprung, length of legs increased.They are more meaty than the Mongolian cattle.But their hind quarters are still not well developed and...

The F_1 of Shorthorn×Mongolian cross adapts itself very well to the environmental conditions of the northern part of Hopei Province.They are strong-built, with low succeptibility to diseases. The F_1 has highly improved conformation over the Mongolian cattle, being more symmetrical, with refined head, increased body width; back and loins are straight, wide and long; ribs well-sprung, length of legs increased.They are more meaty than the Mongolian cattle.But their hind quarters are still not well developed and rather narrow, some of them with sloping and ridge-shaped hips. The udders of the F_1 cows are better developed, with thicker and more curved milk veins, and longer teats.The hair of the crossbred cattle is short and lustrous.The predominant coat color is red or roan, cattle of black, black and white, yellow, yellow and white colors are next numerous, while those of brown, white, steel grey, and wild cat are still less in number. The development and growth of F_1 attained a higher level.Average birth weight of bull calves is 25.13kg, and of heifer calves 23.14kg, they increased by 31.36% and 32.46% respectively than the Mongolian calves.Their weight at 6 months increased by 26.12% and 32.48% respectively, at 12 months by 65.85 and 90.10% respectively.Average weight of F_1 cows at 1st freshening is 399.04kg, 2nd freshening 405.80kg, 3rd freshening 436.00kg, an increase of 41.75%, 26.54% and 31.92% as compared with Mongolian cows at respective freshenings.F_1 bulls at 3 years of age weigh 577.5kg, at 4 years 750.0kg. The height at withers of mature bulls is 141.00cm on the average, body length 175.00cm, heart girth 215.0cm, increased by 17.50%, 17.69% and 20.14% respectively.The average height at withers of mature cows is 124.61cm, body length 146.17cm, heart girth 181.71cm, increased by 1198%, 10.40% and 10.03% respectively. Average length of lactation period of F_1 cows is 267.82 days, an increase of 108.24 days.Average production of milk is: 1st lactation 1,625.25kg, 2nd lactation 1,977.53kg, 3rd lactation 2,342.43kg, increased by 290.36%, 285.27% and 302.22% respectively as compared with Mongolian cows.Cows with milk production over 2,000kg at 1st lactation amounted to 30.80% of the total number of cows, the highest producer gave 3,337.2kg.Average fat content is 4.60%, they range from 3.93% to 5.5%.

短蒙一代杂种牛,对察北地区自然条件的适应性良好,生活力强,体格健壮,疾病较少。短蒙一代杂种牛在体型外貌方面比蒙古牛有了很大程度的改善,全身结构均称、头清秀、体躯宽度显著增加、斜尻有了改善、背腰平宽长、肋骨开张、四肢增高、肌肉组织亦较蒙古牛丰满充实。但后躯仍嫌狭小,有的牛仍显现耕尻和屋脊状尻。一代杂种母牛乳房增大、乳静脉变粗、有弯曲、乳头长度增加。被毛短、有光泽。毛色以红、红白色为数最多,黑、黑白,黄、黄白色次之,狸、褐、白、青等色较少。短蒙一代杂种牛的生长发育较快,公犊平均初生体重为95.13公斤,母犊为93.14公斤,比蒙古牛分别提高31.36%与39.46%,6个月龄体重提高39.48%与96.12%,12个月龄体重提高90.10%与65.85%。短蒙一代杂种母牛平均体重第一产399.04公斤,第二产405.80公斤,第三产436.00公斤,比蒙古牛分别提高41.75%、96.54%与31.92%。一代杂种公牛3岁体重为577.50公斤,4岁为750.0公斤。短蒙一代杂种牛各年龄体格较蒙古牛为大,成年公牛鬐甲高141.0厘米,斜体长 175.0厘米,胸围215.0厘米,较蒙古牛分别增加17.50%、17....

短蒙一代杂种牛,对察北地区自然条件的适应性良好,生活力强,体格健壮,疾病较少。短蒙一代杂种牛在体型外貌方面比蒙古牛有了很大程度的改善,全身结构均称、头清秀、体躯宽度显著增加、斜尻有了改善、背腰平宽长、肋骨开张、四肢增高、肌肉组织亦较蒙古牛丰满充实。但后躯仍嫌狭小,有的牛仍显现耕尻和屋脊状尻。一代杂种母牛乳房增大、乳静脉变粗、有弯曲、乳头长度增加。被毛短、有光泽。毛色以红、红白色为数最多,黑、黑白,黄、黄白色次之,狸、褐、白、青等色较少。短蒙一代杂种牛的生长发育较快,公犊平均初生体重为95.13公斤,母犊为93.14公斤,比蒙古牛分别提高31.36%与39.46%,6个月龄体重提高39.48%与96.12%,12个月龄体重提高90.10%与65.85%。短蒙一代杂种母牛平均体重第一产399.04公斤,第二产405.80公斤,第三产436.00公斤,比蒙古牛分别提高41.75%、96.54%与31.92%。一代杂种公牛3岁体重为577.50公斤,4岁为750.0公斤。短蒙一代杂种牛各年龄体格较蒙古牛为大,成年公牛鬐甲高141.0厘米,斜体长 175.0厘米,胸围215.0厘米,较蒙古牛分别增加17.50%、17.69%与20.04%;成年母牛鬐甲高124.61厘米,斜体长146.17厘米,胸围181.71厘米,此蒙古牛分别提高11.98%、10.40%与10.03%。短蒙一代杂种牛泌乳期平均为267.82天,此蒙古牛增长108.42天,泌乳300天以上者占39.03%,比蒙古牛增多5.18倍。平均泌乳量第一产为1,625.25公斤,第二产为1,977.53公斤,第三产以上为2,342.43公斤,此蒙古牛分别提高290.36%、285.27%与302.22%。第一产泌乳量在2,000公斤以上者有30.80%,最高达3,337.2公斤。平均乳脂率为4.60%(范围3.93—5.5%)。

Mongolian cattle are raised mainly on the Mongolian plateau.They are distributed in the whole of Inner Mongolia and its neighboring provinces.They are well adapted and acclimated to the cold and dry climate of the plateau and can stand poor feeding and management conditions. The body of the cow is rectangular, the head being somewhat large, horns long and fine, chest narrow and deep, hind quarters a little narrow, hips sloping, short-legged with bowed-in hind legs, back, straight, thighs not full, udders small...

Mongolian cattle are raised mainly on the Mongolian plateau.They are distributed in the whole of Inner Mongolia and its neighboring provinces.They are well adapted and acclimated to the cold and dry climate of the plateau and can stand poor feeding and management conditions. The body of the cow is rectangular, the head being somewhat large, horns long and fine, chest narrow and deep, hind quarters a little narrow, hips sloping, short-legged with bowed-in hind legs, back, straight, thighs not full, udders small with short and small teats.The color patterns are mostly yellowish brown, black, and black and white; cows of reddish-brown and wild cat are lesser in numbre, occasionally with grey or white hair. Average weight of heifer calf at birth is 17.47kg, at 6 months 102.53kg.Yearling heifers weigh 131.37kg on the average, 3 year olds 281.5kg, 5 year olds 330.5kg, and 7—9 year olds 365—370kg.The average height at withers of adult cow is 112.61cm; body length 135.96cm; heart girth 167.72cm; and the circumference of the ankle is 15.55cm. The average.length of lactation is 159.4 days, 51.64% of the cows between 121— 210 days.Milk production averages: for 1st lactation 416.35kg, 2nd lactation 513.29kg, 3rd lactation 582.38kg, 4th lactation and onwards 651.06kg, 48.37% of the cows yield between 500—1,100kg.Highest production record was 2,195.8kg, and highest daily production was 14.13kg.The average fat content was 5.22% (range from 3.1% to 9.0%), mostly between 5.0%—5.9%, which amounting to 55.38%.

蒙古牛主要产在蒙古高原。分布在我国内蒙全境及其临近的西北、东北、华北各省的部分地区。蒙古母牛体躯呈长方形,头稍大,角细长,胸扁深,后躯稍窄,尻部较倾斜,四肢短,后肢内缩,背腰平直,后腿肌肉不够丰满,乳房小,乳头细短。被毛以黄褐、黑及黑白色最多,红褐、狸色灰之,间有青灰和白色。母牛体重,初生平均为17.47公斤,6个月102.53公斤,12个月131.73公斤,3岁281.5公斤,5岁330.5公斤,7—9岁母牛为365—370公斤。成年母牛鬐甲高平均为112.61厘米,体长135.96厘米,胸围167.72厘米,管围15.55厘米。蒙古牛泌乳日数平均为159.4天。第一产泌乳量平均为416.35公斤,第二产为 513.29公斤,第三产为582.38公斤,第四产和以后各产为651.06公斤。产乳在500—1,100公斤者为多,占全群牛数的48.37%,泌乳期最高产量达2,195.8公斤,最高日泌乳量14.13公斤。乳脂率平均为5.22%(范围3.1—9.0%)。

Data were obtained on 18 ♂and 18 ♀ from three line-groups confirmed previous workers about growth gradient theory in general.Body weight at 60、240 and 300 days of age averaged 10.16±1.55、88.74±14.10 and 106.63±17.90 resp. From 120—180 days of age the daily gain was the highest(510.7g)and then decr- eased.During 60-240 days of age or 10 kg to 90 kg,av.daily gain was 437 g,and the consumption of F.U/kg gain was 3.83 or DE 10260 kcal.DCP 419g.The average dressing Percentage was 70.92%,carcass length 77.72 cm,backfat...

Data were obtained on 18 ♂and 18 ♀ from three line-groups confirmed previous workers about growth gradient theory in general.Body weight at 60、240 and 300 days of age averaged 10.16±1.55、88.74±14.10 and 106.63±17.90 resp. From 120—180 days of age the daily gain was the highest(510.7g)and then decr- eased.During 60-240 days of age or 10 kg to 90 kg,av.daily gain was 437 g,and the consumption of F.U/kg gain was 3.83 or DE 10260 kcal.DCP 419g.The average dressing Percentage was 70.92%,carcass length 77.72 cm,backfat thickness 3.94 cm,skin thickness 0.33 cm,eye-muscle area 21.16 cm~2,lean-percentage of carcass 50.08,fat percentage 34.84,and bone percentage 7.34.There was no signi- ficant difference between three line-group,in av.daily gain、food conversion o careass characters,but the skirt of group Ⅰ was thickest,group 3 appeared short body length with a high hcart girth ratio(heart girth/body length). The guan zhong black breed-group can be classified as a earler maturing type. However,less well development hind-quarter need be corrected.It is possible to nurture the pig toward a longer frame,leaner cut and fuller ham development thro- ugh election and feeding method.

据三个品系群的18头去势公猪和18头母猪的资料大体上与前人关于生长梯度的学说符合。60、240及300日令时平均体重分别为10.16±1.55、88.74±14.10及106.63±17.90公斤。120—180日令期间生长最快,平均日增重510.7克,其后减慢。60—240日令或体重10—90公斤期间平均日增重437克,每公斤增重饲料消耗量约合3.83饲料单位或消化能10260大卡、可消化粗蛋白质419克。屠前空腹活重83.17公斤时,屠宰率70.92%、胴体长77.72厘米、膘厚3.94厘米、皮厚0.33厘米、眼肌面积21.16平方厘米;胴体瘦肉率50.08%、脂肪34.84%、骨骼7.34%。三系间在日增重、饲料报酬及胴体性状上无显著差异,但Ⅰ系皮最厚、Ⅲ系体短而体躯率(胸围/体长)高。关中黑猪可视为一个较早熟的品种群,但后躯发育不足需要改进。通过选择和饲养方式有可能培育成长躯、稍瘦和丰臀的猪。

 
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