نتایج جستجو برای: young bull

تعداد نتایج: 252640  

Journal: :SIAM J. Financial Math. 2010
M. Dai Q. Zhang Q. J. Zhu

This paper is concerned with the optimality of a trend following trading rule. The idea is to catch a bull market at its early stage, ride the trend, and liquidate the position at the first evidence of the subsequent bear market. We characterize the bull and bear phases of the markets mathematically using the conditional probabilities of the bull market given the up to date stock prices. The op...

Journal: :علوم دامی ایران 0
آرمین توحیدی دانشیار، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج فرهاد صمدیان دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج حمید کهرام استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مهدی انصاری دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

the aim followed in this study was to make a comparison of the composition of fatty acids available in the sperm lipids of cattle, sheep and goat. semen samples were collected from 28 holestein cows, 12 chal rams and 7 mahabadi goats. after washing out and removal of the seminal plasma, total lipids of the sperm were extracted and fatty acids trans-methylated. the fatty acid methyl esters were ...

Journal: :journal of livestock science and technologies 2015
m. vakili azghandi m. r. nassiri a. shamsa m. jalali m. m. shariati

to determine the role of ddx3y gene in spermatogenesis and infertility in bulls, blood samples were collected from five infertile bulls (azoospermic; no sperm in the semen) at the animal breeding center in karaj, iran. the recommended human primers by eaa/eqmn were investigated using the blastn database for sts marker detection. alignment of sts marker genes with bovine genome was performed. pr...

Journal: :The Biochemical journal 1986
A Poulos P Sharp D Johnson I White A Fellenberg

Fatty acids with carbon chain lengths greater than 22 (VLCFA) have been detected in boar, ram, bull and human spermatozoa. Saturated and mono-unsaturated fatty acids were present in all spermatozoa but, except for human spermatozoa, polyenoic fatty acids were quantitatively the most important components. Marked differences in polyenoic fatty acid composition were observed. Whereas human spermat...

Ajab Khan M.Masoom Yasinzai Muhammad Azam Kakar

The aim of this study was to investigate the comparison between some seminal plasma parameters and age of the bull. Concentrations of various biochemical parameters like fructose, glucose, total proteins, albumin and inorganic ions including Na, K and Cl ions of seminal plasma of breeding Sahiwal bulls of different ageswere assessed. Methods: 40Sahiwal bullsdivided into 4 age groups.Semen (2ml ...

امانلو, حمید, حسین یزدی, مهدی, محجوبی, احسان, میرزایی الموتی, حمیدرضا, نبی پور, ابوالقاسم, هرکی نژاد, محمدطاهر,

The experiment designed to evaluate the effects of a glycerol based supplemental product on growth and dry matter intake (DMI) in Holstein bull calves during controlled heat stress (HS). Before the start of the experiment, bull calves (n= 14, 163.6 ± 30.1 kg BW) were allocated to thermal neutral conditions [26.5 ± 3.4°C] for 7 d (period 1; P1). During this period, productive parameters as well ...

Journal: : 2021

The statistical data on the incidence of bronchopneu-monia in Simmental calves were collected and analyzed farm AO “Imeni Gastello”, Khabarskiy District Altai Region. This disease is widespread among young animals. Most often, bronchopneumonia caused by bacterial microflora; frequently associated with a violation veterinary hygiene requirements. danger for animals lies fact that not only lungs ...

Journal: :Encyclopedia 2021

Frederick II of Hohenstaufen, King Sicily (1208–1250). Hohenstaufen was the second king Swabian dynasty to sit on throne Sicily. He crowned in 1198, but, consideration his young age, he only ruled independently from 1208 1250 (the year death). not held title but also Germany (or Romans), Jerusalem, and, above all, Emperor Holy Roman Empire. His most relevant and innovative iconographic represen...

Journal: :Journal of the South African Veterinary Association 1997
O M Briggs R M Kirberger N B Goldberg

A case of right atrial myxosarcoma is described in a Staffordshire bull terrier with a history of weight loss, exercise intolerance and collapse. The diagnosis of an intracavitary cardiac tumour was made on echocardiography. The dog was euthanased. Secondary spread to the lungs and lymph nodes was present. Myxoma is one of the rare intracavitary cardiac tumours and this case is believed to be t...

اسلمی نژاد, علی اصغر, رکوعی, محمد, شریعتی, محمدمهدی, طهمورث پور, مجتبی, فرجی آروق, هادی,

The effects of herd size, semen type, generation overlapping and breeding goal on genetic gain in Holstein cows were studied through stochastic simulation. Three levels of herd size (100, 200, and 400), two levels of semen type (unsexed and sexed), three levels of generation overlapping (low, average and high) and two levels of breeding goal (narrow and broad) were combined together to make 36 ...

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