Results 21 to 30 of about 18,549 (301)

Modeling effects of nonbreeders on population growth estimates [PDF]

, 2016
Acknowledgements We thank the Beissinger lab and reviewers for helpful comments on manuscript drafts. This research was funded by a Marie Curie International Outgoing Fellowship within the 7th European Community Framework Programme (project NON- BREEDERS)
Beissinger, Steven R, Lee, Aline M, Reid, Jane M   +2 more
core   +2 more sources

Searching of Pregnancy Rate in Repeat Breeder Cows by Embryo Transfer Practices

Journal of Agricultural Sciences, 2021
The aim of this study is to compare the pregnancy rates by applying embryo transfer to the cows which are not pregnant and should be removed from herd as repeat breeder. In this study, 87 randomlyselected Holstein cows utilized.
Hakan Sağırkaya, Erkan Say
doaj   +1 more source

Trace minerals profile of blood serum and estrual mucus in repeat breeder Kankrej cows

Veterinary World, 2013
Aim: The study was carried out with an idea to ascertain involvement of trace minerals in failure of conception in Knakrej cow. Materials and Methods: The animals under study were comprised of 10 normal (Group-I) and 20 repeat breeder (Group-II) Kankrej ...
N F Chaudhari, C F Chaudhari, B N Suthar, H C Nakhashi, L C Modi, Falguni Modi   +5 more
doaj   +1 more source

Repeat Breeding and Its’ Associated Risk Factors in Crossbred Dairy Cattle in Northern Central Highlands of Ethiopia

Veterinary Medicine International, 2023
The purpose of the current study was to ascertain the prevalence and incidence of repeat breeding and related risk variables in crossbred dairy cattle in the northern Central Highlands of Ethiopia.
Tewodros Eshete, Tilaye Demisse, Tefera Yilma, Berhan Tamir   +3 more
doaj   +1 more source

Reproductive performance of repeat breeders in dairy herds

Theriogenology, 2010
The objectives were to characterize repeat breeding in dairy cows, including reproductive performance and risk factors. Data from 613 Holstein Friesian cows in nine dairy herds across Japan were enrolled. A repeat breeder was defined as a cow that did not become pregnant after three inseminations, despite no clinically detectable reproductive disorders.
Yusuf, Muhammad, Nakao, Toshihiko, Ranasinghe, RMS Bimalka Kumari, Gautam, Gokarna, Long, Su Thanh, Yoshida, Chikako, Koike, Kana, Hayashi, Aki   +7 more
openaire   +3 more sources

Efficacy of different estrus synchronization protocols in repeat breeder cows

Indian Journal of Animal Sciences, 2019
The work was conducted in 272 repeat breeder cows diagnosed with functional form of infertility, i.e. luteal insufficiency and ovulatory defects. The objective of present study was to evaluate the efficacy of synchronization protocols in functionally ...
MADHUMEET SINGH, AKSHAY SHARMA, SUPRIYA KAPSE, AMIT KASHYAP, PRAVESH KUMAR   +4 more
doaj   +1 more source

Döl Tutma Problemi Olan Holştayn Irkı Sığırlarda Sitogenetik ve Moleküler Genetik Taramalar

Journal of Agricultural Sciences, 2016
Sığır yetiştiriciliğinde repeat breeder sendromu olarak adlandırılan döl tutma problemi önemli bir sorundur. Holştayn ırkı sığırlarda bu problemin ortaya çıkmasında bakım-beslemenin yanı sıra Robertsonian translokasyon ve faktör XI yetmezliği FXID ...
Korhan Arslan, Fadime Özdemir, Esma Gamze İlgar, Bilal Akyüz   +3 more
doaj   +1 more source

Amylase activity in cerical mucus and serum during estrus in normal and repeat breeder cattle

Veterinary World, 2012
Aim: To compare the amylase activity in the cervical mucus and serum during estrus in normal and repeat breeder cattle and find out importance in fertility. Materials and methods: Twenty cyclic crossbred cattle were divided into two groups: normal (n =10)
Ashok Kumar, S. Mehrotra, S. S. Dangi, G. Singh, Mahak Singh, A. S. Mahla   +5 more
doaj   +1 more source

The extraordinary evolutionary history of the reticuloendotheliosis viruses [PDF]

, 2013
The reticuloendotheliosis viruses (REVs) comprise several closely related amphotropic retroviruses isolated from birds. These viruses exhibit several highly unusual characteristics that have not so far been adequately explained, including their extremely
A Katzourakis, A Katzourakis, A Stamatakis, AC van der Kuyl, AD Yoder, AL Hughes, AM Awad, AM Fadly, Anna Maria Niewiadomska, Bill Sugden, BR Burmester, C Feschotte, C Hertig, CG Ludford, CG Ludford, CN Dren, CN Dren, CN Dren, CR Parrish, CY Kang, CY Lin, DC Nickle, DH Huson, DH Ley, DJ McGeoch, DS Arathy, DW Trampel, E Prukner-Radovcic, EH Dearborn, F Abascal, F Rodriguez, FR Robinson, H Koyama, HC Carlson, HG Purchase, HM Koo, I Davidson, IS Diallo, IS Diallo, J Hanson, J Li, J Martin, JJ Solomon, JP Stoye, JP Vanderberg, JS McDougall, K Nyakatura, KA Schat, KM Moore, LA Terzian, LE Hayes, LJ Yu, LT Coggeshall, M Barbacid, M Garcia, MJ Peterson, MK Cook, ML Drew, MR Patel, MW Dimmic, MX Motha, N Ratnamohan, N Yuasa, P Singh, PE Miller, PS Paul, PS Sarma, Q Liu, R Crespo, R Gifford, R Isfort, RA Weiss, RB Franklin, RB Franklin, RJ Isfort, RL Witter, RL Witter, RL Witter, RM Corwin, Robert J. Gifford, SB Hitchner, SK Biswas, SL Kosakovsky Pond, T Barbosa, T Tadese, TJ Kim, TM Grimes, VN Kewalramani, W Trager, WG Conway, WH Cheng, Y Wang, Z Cheng, Z Cui, Z Yang, É Brumpt   +95 more
core   +3 more sources

PHOSPHORUS AND TRACE ELEMENT STATUS OF ANOESTROUS AND REPEAT BREEDER CROSS BRED COWS [PDF]

Journal of Veterinary and Animal Sciences, 1995
The role of Phosphorus, Copper, Zinc, Manganese and Cobalt in reproductive function was evaluated on the basis of serum values of these elements in fertile, anoestrous and repeat breeder cows.
Joy George, K. Prabhakaran Nair
doaj