نتایج جستجو برای: buffalo cattle and bulls

تعداد نتایج: 16840147  

Journal: :Genetics and molecular research : GMR 2011
L S Dai Y M Zhao G L Zhang R F Zhao H Jiang T H Ma Y Gao B Yuan Y L Xu W Y Yu Z H Zhao J B Zhang

Follicle-stimulating hormone (FSH) plays an essential role in mammalian spermatogenesis and follicular development. In a previous study, we demonstrated that some bulls carry numerous linked mutations in the FSH beta-subunit (FSHB) gene, and that these bulls have poor-quality semen, low fertility, and slightly lower serum FSH concentration compared to those without such mutations. Here, we iden...

Journal: :Revue scientifique et technique 1999
P Chilonda J D Woodford B Ahmadu K L Samui M Syakalima J E Mlangwa

In Zambia, foot and mouth disease (FMD) has been caused by all three of the South African Territories serotypes (SAT 1, 2 and 3) and by European types O and A. Three areas of the country which have experienced repeated occurrences of the disease are considered high-risk areas. The three areas are as follows: the southern border area between Zambia and Zimbabwe, Botswana and Namibia, the Kafue F...

2014
Pushp Raj Shivahre

Materials and Methods The estimate of world buffalo population is approximately 185.29 million dispersed in 42 countries, out of which 97% (179.75 million) are found only in Asia [1]. India has approximately 57% (105.3 million) of the total world buffalo population. The water buffalo ( ) contributes immensely to the agricultural economy through milk, meat, hides and draught power [2]. Share of ...

2013
T. X. Yang H. Li F. Wang X. L. Liu Q. Y. Li

Cattle breeds have a striking effect on milk, including milk composition and technological characteristics. This study aims to compare milk composition, acidification activity, viscosity, milk dispersion system stability and casein molecular weight among three buffalo breeds in China. The technological characteristics of milk produced by three cattle breeds of river buffalo (Murrah), crossbreed...

Ebrahimi B Esmaeili V Rastegarnia AR Rezaei Topraggaleh T, Shafiepour V Shahverdi AH Sharbatoghli M

Background: Sperm cryopreservation has been associated with over production of reactive oxygen species (ROS). Buffalo spermatozoa are susceptible to ROS inducing damages due to insufficient level of cytoplsmic antioxidant along with high amount of poly unsaturated fatty acids composition in membrane structure. Therefore, appropriate antioxidant in buffalo cryopreservation extender would reduce ...

Journal: :iranian journal of applied animal science 2011
l. stadnik j. dvorakova f. louda

the objective of this work was to determine the effect of sex, breed and birth season of calves on intensity of mllt (musculus longissimus lumborum et thoracis) area changes and development of the selected body parts in bulls and heifers of blonde d´aquitaine (ba) cattle during rearing period. two generations of bulls (n=63) and heifers (n=68) of blonde d´aquitaine (n=61) and crossbreds c×ba (c...

Journal: :Journal of animal science 1986
S D Jones J A Newman A K Tong A H Martin W M Robertson

A total of 144 male crossbred calves were allocated to four management treatments (bulls; steers; bulls implanted with zeranol at 100 d of age and re-implanted at 69, 93 and 56 d thereafter; bulls implanted with zeranol at 168 d of age and re-implanted at 93 and 56 d thereafter), and two pre-slaughter shipping treatments (minimum pre-slaughter stress with cattle shipped and slaughtered within 4...

Journal: :فصلنامه تحقیقات کاربردی در علوم دامی 0
کاوه جعفری خورشیدی استادیار گروه علوم دامی، دانشکده علوم کشاورزی، دانشگاه آزاد اسلامی واحد قائمشهر قاسم مقصودی نژاد عضو هیئت علمی مؤسسه تحقیقات علوم دامی کشور اسحق کردنژاد عضو هیئت علمی مرکز تحقیقات دامپروری صفی آباد، شهرستان دزفول

in this research, buffalo production was studied from view points of housing, feeding, milk production and reproducrion in rural area of shoushtar, khuzestan. the results of this study revealed that in a herd 66.7 , 8.3 and 25 % were breeders (adult females), adult bulls and valves. each breeder female buffalo had 3-17 parturation in whole life. first service was done at 18 month after birth an...

Alavi Shoushtari SM Dorostkar K Khaki A Mokarizadeh A Pashapour A, Tabassomi M

Background: Artificial insemination is a valuable tool in genetic improvement programs and widely used breeding technique in farm animals. Semen processing and cryopreservation causes considerable damage to sperm DNA, motility apparatus, plasma membrane, acrosomal cap and thus, reduced fertility. Selenium is an integral part of glutathione peroxidase (GSH-Px), an enzyme which protects cell inte...

2010
Vanessa N. Michelizzi Michael V. Dodson Zengxiang Pan M Elisabete J Amaral Jennifer J. Michal Derek J. McLean James E. Womack Zhihua Jiang

The water buffalo is vital to the lives of small farmers and to the economy of many countries worldwide. Not only are they draught animals, but they are also a source of meat, horns, skin and particularly the rich and precious milk that may be converted to creams, butter, yogurt and many cheeses. Genome analysis of water buffalo has advanced significantly in recent years. This review focuses on...

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