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Role of Growth Differentiation Factor 9 and Bone Morphogenetic Protein 15 in Ovarian Function and Their Importance in Mammalian Female Fertility — A Review
Cumulus Cells Granulosa Cells Oocyte Maturation Follicular Development Reproductive Efficiency TGF-β Superfamily
2016/11/10
Growth factors play an important role during early ovarian development and folliculogenesis, since they regulate the migration of germ cells to the gonadal ridge. They also act on follicle recruitment...
Selection for Duration of Fertility and Mule Duck White Plumage Colour in a Synthetic Strain of Ducks (Anas platyrhynchos)
Duck Duration of Fertilization Fertility Selection Plumage Colour
2016/5/18
A synthetic strain of ducks (Anas platyrhynchos) was developed by introducing genes for long duration of fertility to be used as mother of mule ducklings and a seven-generation selection experiment wa...
Effect of Heifer Frame Score on Growth, Fertility, and Economics
Increasing Energy Management Percent Mature Body Weight
2016/5/17
A non-traditional forage-based protocol was employed to evaluate replacement heifer growth, fertility, and economics between small frame (SF, 3.50; n = 50) and large frame (LF, 5.56; n = 50) heifers u...
河流型水牛与沼泽型水牛杂交后代(2n=49) 染色体遗传与繁殖力的研究Studies of Chromosomal Heredity and Fertility of Progenies (2n=49) Crossed between River and Swamp Buffalo
三品种杂交水牛 2n=49核型 染色体分离 繁殖力 异常配子
2007/12/30
摘要通过2n=50和2n=49两种核型三品种杂交水牛繁殖记录分析和其中2n=49三品种杂交水牛联会复合体及其精子染色体研究，结果表明，后者虽然公母都是可育的，由于它产生两种正常配子（n=24，n=25）和两种异常配子（n=24+1，n=25-1），自群繁殖导致其子代染色体多态性（2n=50，2n=49和2n=48）；其异常配子，与正常配子结合，则产生非整倍性，致其繁殖力降低，表现为情期配种受胎率降...
Oestrus Induction, Plasma Steroid Hormone Profiles and Fertility Response after CIDR and eCG Treatment in Acyclic Sahiwal Cows
CIDR Acyclic Oestrus Induction Steroid Hormone Fertility Sahiwal Cows
2016/4/22
The study was conducted on 30 true acyclic Sahiwal cows (15 cows, ??0 days postpartum; 15 postpubertal heifers, ??0 months of age) and a similar 20 untreated controls (10 cows, 10 heifers). An ??Eazi?...
Estrous Response and Fertility in Postpartum Suckled Female Yaks (Bos grunniens) Treated with an Intravaginal Device Containing Progesterone (CIDR), Pregnant Mares` Serum Gonadotrophin and Prostaglandin Analogue
Yak CIDR Prostaglandin Estrus Induction Pregnancy
2016/4/19
Seven yak bulls were placed in pastures with the cows for natural mating. Estrus rate in the CPP group (28/28) was higher (p<0.01) than in the PP group (6/21) and in the CG group (0/26) within 96 h af...
Effect of Certain Immunomodulators on Uterine Infections and Fertility in Post Partum Buffaloes
Buffaloes Uterine Infection Tinospora cordifolia Autologous Plasma Bacterial Load Conception Rate
2016/4/15
The present study was aimed to study the effect of aqueous extract of Tinospora cordifolia and autologous plasma on uterine infections. Buffaloes in estrus, 40 days and above postpartum were checked f...
Fertility of Holstein Cows in Chengdu, China
Holstein Estrus Detection Conception Rate Calving Interval
2016/4/12
Data on the use of breeding records of dairy cattle farm of Fenghuang-shan in Chengdu areas during a period of six years is systematically analyzed. The results show that Holstein heifers have their 1...