Results 31 to 40 of about 12,459 (249)

Hormonal treatment and estrus synchronization in cows: A mini-review

Journal of Advanced Veterinary and Animal Research, 2015
Perfect detection of estrus is crucial for good husbandry practice of cow. Estrus synchronization is the alternative strategy to bypass the critical problem of estrus detection.
Ashit Kumar Paul, Ton Yoisungnern, Napolean Bunaparte   +2 more
doaj   +1 more source

Sex differences in variability across timescales in BALB/c mice. [PDF]

, 2017
BackgroundFemales are markedly underinvestigated in the biological and behavioral sciences due to the presumption that cyclic hormonal changes across the ovulatory cycle introduce excess variability to measures of interest in comparison to males. However,
Grant, Azure D, Kriegsfeld, Lance J, Prendergast, Brian J, Smarr, Benjamin L, Zucker, Irving   +4 more
core   +2 more sources

Ovarian Response of Dairy Cows to Progesterone Combined On [PDF]

, 2013
The objective of this study was to evaluate the response of ovaries in estrus synchronizationprotocol using GnRH-PGF2α based protocol combined progestin in a herd with tie-stall housing system.A total of 20 Holstein Friesian cows at different stages of ...
Hasbi, H. (H), Putri, A. R. (A), Toleng, A. L. (A), Yusuf, M. (M)   +3 more
core   +1 more source

The effect of exogenous glucose infusion on early embryonic development in lactating dairy cows [PDF]

, 2018
peer-reviewedThe objective of this study was to examine the effect of intravenous infusion of glucose on early embryonic development in lactating dairy cows. Nonpregnant, lactating dairy cows (n = 12) were enrolled in the study (276 ± 17 d in milk). On d
Butler, Stephen, Curran, F., Forde, Niamh, Herlihy, Mary M., Kenneally, J., Leane, S., Lonergan, P., Lucy, Matt C., Simintiras, Constantine A., Sturmey, Roger G.   +9 more
core   +2 more sources

Estrus and pregnancy rate of Simmental-Ongole Crossbred and Ongole Grade heifer after being synchronized and inseminated

Journal of the Indonesian Tropical Animal Agriculture, 2018
The aim of the study was to examine the synchronization of estrus and artificial insemination in heifers of Ongole grade and Simental-Ongole grade. The research used 19 Ongole Grade (OG) and 18 Simental-Ongole Crossbred (SOC) heifers.
S. Sutiyono, D. Samsudewa, A. Suryawijaya   +2 more
doaj   +1 more source

Estrous behavior in dairy cows: identification of underlying mechanisms and gene functions [PDF]

, 2010
Selection in dairy cattle for a higher milk yield has coincided with declined fertility. One of the factors is reduced expression of estrous behavior. Changes in systems that regulate the estrous behavior could be manifested by altered gene expression ...
Beerda, B., Boer, H.M.T., Veerkamp, R.F., Woelders, H.   +3 more
core   +2 more sources

Recipient Selection to Support The Success Rate of Frozen-Thawed Belgian Blue Embryo Transfer [PDF]

E3S Web of Conferences, 2020
Frozen-thawed Belgian Blue (BB) Embryo transfer (TE) is an effort of fulfilling meat demand in Indonesia. This research aimed at observing the correlation between estrus expressions of standing heat and the correlation of CL characteristics on the ...
Kurniati Weni, Agil Muhammad, Purwantara Bambang, Imron Muhammad   +3 more
doaj   +1 more source

Estrus Synchronization in Ugandan Cattle Herds [PDF]

Journal of Applied Veterinary Sciences
This survey aimed to assess the breeding practices and pregnancy rates of cattle on farms that utilized artificial insemination (AI) after estrus synchronization in Uganda.
Patrick Mawadri, Katali Benda, Denis Mugizi, Paul Okullo, Benon Kanyima, Charles Lagu, James Okwee-Acai, Maria Nassuna-Musoke, David Okello-Owiny   +8 more
doaj   +1 more source

Serum Metabolomic Analysis of Synchronous Estrus in Yaks Based on UPLC-Q-TOF MS Technology

Animals
The yak is a unique species of livestock found in the Qinghai-Tibet Plateau and its surrounding areas. Due to factors such as late sexual maturity and a low rate of estrus, its reproductive efficiency is relatively low.
Fen Feng, Chun Huang, Dunzhu Luosang, Xiaoming Ma, Yongfu La, Xiaoyun Wu, Xian Guo, Zhandui Pingcuo, Chunnian Liang   +8 more
doaj   +1 more source

Synchronization of Estrus in Cattle: A Review [PDF]

Veterinary World, 2011
Numbers of estrus synchronization programmes are available in cattle based on the use of various hormones like progesterone, prostaglandin F2a and their various combinations with other hormones like estrogen and Gonadotrophin Releasing hormone (GnRH ...
R. Islam
doaj