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The experiment is designed to determine the optimum mating time of the bitches by studying the changes of the corneous cells in the vagina of the naturally estrous bitches.

而由于良种母犬的配种费用较高，加上犬主人对提高良种母犬繁殖率的期望值较大，特别希望能帮助确定母犬的准确配种时间，以收到更好的繁殖效果，因此，有必要研究母犬排卵时间的鉴定方法。

Dog breeds listed for the first show include the Long-haired Saint Bernard, the Esquimaux Dog, and the Siberian Bloodhound; most dogs had simple names such as Duke, Rover, Mungo, Nellie, and Rex, compared to today's fancier and longer dog names (although among today's call names there still number many Dukes, Nellies, Rexes and the like).

首届犬展的参赛犬犬种包括长毛圣伯纳犬、爱斯基摩犬和西伯利亚寻血猎犬。大多数参赛犬的名字与现今长而华丽的名字相比显得非常简单，例如Duke、Rover、Mungo、Nellie和Rex。

Irish setter that looks beautiful and happy feature of many Dog lovers mistaken, that dogs should only be used for dog show, the Irish setter, which is keeping the little people, but in reality, and it It is not that the "flower dog" and that they are tough, stubborn character, so that they are masters of impeccable integrity, in life as much as possible will be accompanied on your side, and you spend every memorable moment .

爱尔兰雪达犬那美丽的外表和快乐的特点，使很多养犬爱好者误认为，这种犬应该仅能用作展示犬，所以导致现在饲养爱尔兰雪达犬的人少之又少，但实际上，它并不是人们所认为的"花瓶狗"，它们那坚韧、倔强的性格，使它们对主人的忠诚无懈可击，在生活中也会尽可能地陪伴在你的身边，与你度过每一个值得纪念的时刻。

Should be long, strong and deep right to the end of the muzzle, but not coarse. Full face it should be oval in outline and be filled completely up giving the impression of fullness with a surface devoid of hollows or indentations, i.e., egg shaped. In profile it should curve gently downwards from the top of the skull to the tip of the nose. The forehead should be flat across from ear to ear. The distance from the tip of the nose to the eyes should be perceptibly greater than that from the eyes to the top of the skull. The underjaw should be deep and well defined.Should be clean and tight.

18世纪时，用牛头犬与梗类配种产生叫"bull and terrier"的牛头梗斗犬，后来与英国的玩具梗和惠比特犬品种，产生出具凶猛性，快速敏捷的犬种来。1860年，犬商詹姆士喜克斯将此犬加上英国猎梗，大麦町犬，西班牙波音达的品种，经过多次品种改良后，产生了现在的白色，平脸，强壮，四肢比祖先短小的牛头梗。1920年，因为白色品种遗传了听觉上的缺陷，被毛被加上了其他颜色。19世纪，白色牛头梗在热爱斗牛犬的人中间深受好评。

The canine tick and the blood infectious disease transmited by canine tick are harmful to the development of canine feeding farm, because they can make the dog valetudinarianism and death.

在大型养犬场中，犬蜱及其传播的疾病是危害养犬场发展的重要原因之一，轻则引起犬不安、贫血、体弱多病，重则导致犬的死亡。

Muscular and handsome breed of working dog known for its distinctive white mask and dark widow's peak; also called Arctic sled dog; double coat is thick, of medium length, coarse, and insular and comes in various shades of gray with lighter white and darker black areas; ears relatively small compared to head and are erect and slightly rounded at ends; tail is bushy and carried gaily and loosely curled over rump; eyes are almond-shaped, wolflike yet trusting, and light brown in color; adult stands 20 25 in.(51 64 cm) tall at shoulders and weighs 50 85 lbs (23 39 kg); firm, compact feet allow dog to pull heavy loads through deep snow; where the Siberian husky is designed for speed, this breed is designed for power; very fond of people, especially children; enjoys rolling around in snow and prefers outdoor life; great at sled-pulling contests; named after the Mahlemuts, nomadic and skilled Inuit people who migrated from Siberia over a land bridge into northwestern Alaska with these dogs thousands of years ago.

爱斯基摩犬是工作犬的一支，肌肉发达，英俊潇洒，因其与众不同的白色双颊和暗色额头&V&型发尖而闻名，它也被称为&北极雪橇犬&；厚而粗糙适中长度偏狭的双层毛皮，以多样化的灰度梯度混杂着轻度的白色和深黑区域表现出来；耳朵相对头部较小，挺立并轻微地环绕在头部末位；尾巴浓密的，松弛地卷曲盘绕在臀部上方；眼睛呈杏仁状，狼一般的长相，值得信赖，毛色呈浅棕色；成年犬站立肩高51—64厘米，重23—39公斤；牢固坚实的足部使得爱斯基摩犬能够拉动重负载在深厚的雪中前进；如果说西伯利亚哈士奇被认为是速度的象征，爱斯基摩犬被认为是力量的象征；它们喜欢人类，尤其是孩子，喜欢在雪中滚动，尤其喜欢户外生活；非常擅长牵引雪橇的竞赛；它以爱斯基摩而命名，游牧和富有经验的因纽特人在几千年前和这些狗一起从西伯利亚通过北方大陆桥迁移到阿拉斯加。

Cherry eye is the term used to refer to canine nictitans gland prolapse, a common eye condition in various dog breeds where the gland of the third eyelid prolapses and becomes visible.

樱桃眼，又称犬瞬膜腺脱出，是一种常见的犬类眼科疾病，见于多种犬种。患病犬的第三眼睑腺体脱出、可见。

Although their history is unrecorded, it is commonly accepted that they developed from crosses between the Roman drover dogs and the progenitors of the Finnish Spitz. As time went on, the dogs were also crossed with other working and sporting breeds, including beardies, setters, pointers and sight hounds.

虽然边境牧羊犬的确切起源没有历史纪录，但普遍已接受它们是由罗马牲畜贩子的狗和芬兰猎犬杂交出来的狗种，且随着时间的推移它们的血统里又混杂了一些工作犬和竞技犬的血统，比如说雪打犬、波音达犬、寻血犬等等。

She enjoyed breeding and/or exhibiting not only Pekingese and Chow Chows, but Japanese Chins, Yorkshire Terriers, Pugs, Pomeranians, Shih Tzu, Papillons (and various other Toy and Non Sporting breeds). She owner/ handled ten all breed BIS winning Pekingese- and many other specialty and group winners.

Janet开始以繁殖纯种犬和参加犬类比赛为自己的事业（以Sing Lee犬舍的名义），她已不仅限于北京犬和松狮犬的繁殖和比赛，还增加了包括日本狆、约克夏、巴哥、波美拉尼亚犬、蝴蝶犬等（以及其他不同品种的玩具类犬和非运动犬），她繁殖出来的纯种犬为她赢得了许多比赛的冠军，包括北京犬的BIS。

K工作犬,训犬网,训狗网,狗友网,中国工作犬网,工作犬网,宠物用品,养犬技术,训犬用品,训犬技术,训犬视频,宠物训练,猎犬训练,训犬学校 The reason for getting into KNPV is there is no tracking and the exercises are fun to train for guard the article and handler protection etc.

X工作犬，训犬网，训狗网，狗友网，中国工作犬网，工作犬网，宠物用品，养犬技术，训犬用品，训犬技术，训犬视频，宠物训练，猎犬训练，训犬学校 KNPV吸引人的地方在于，它不需要追踪，而训练项目也充满了乐趣（比如看守物品和护卫训导员，等等）。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。