Results 41 to 50 of about 3,996 (257)
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 +4 more
doaj +1 more source
Revista Científica, 2023 Nili-Ravi buffalo are known as the “Black Gold of Pakistan”. It is the most prized dairy animal in Pakistan. Silent estrus and shy behavior are among the main causes of poor reproductive efficiency in buffalo, leading to prolonged calving intervals ...
Muhammad Tayyab Khan +2 more
doaj +1 more source
Animal, 2017 In dairy cows, subjected to a G6G protocol, objectives were to determine effects of (1) extending the interval from prostaglandin F2α (PGF2α) to gonadotropin-releasing hormone (GnRH) during presynchronization; and (2) adding a second PGF2α treatment ...
F. Heidari +3 more
doaj +1 more source
Certain hormonal profiles of postpartum anestrus jersey crossbred cows treated with controlled internal drug release and ovsynch protocol [PDF]
Veterinary World, 2016 Aim: The study was conducted to determine the serum levels of certain hormones in post-partum anestrus cows following treatment with controlled internal drug release (CIDR) and Ovsynch protocol.
Dayanidhi Jena +5 more
doaj +1 more source
Use of stochastic simulation to evaluate the reduction in methane emissions and improvement in reproductive efficiency from routine hormonal interventions in dairy herds [PDF]
, 2015 This study predicts the magnitude and between herd variation in changes of methane emissions and production efficiency associated with interventions to improve reproductive efficiency in dairy cows.
A De Vries +32 more
core +3 more sources
Pakistan Journal of Zoology, 2019 Appropriate postpartum reproductive management plays a vital role in dairy farm economics. Primary objective of the present study was to compare the efficiency of standard Ovsych protocol (OVP0) and its modified forms (OVP5 and OVP7) as postpartum reproductive management tools in cyclic dairy cows. In total, 167 Holstein cows were randomly divided into
Nak, Deniz +5 more
openaire +2 more sources
The association of medroxyprogesterone to the Ovsynch protocol for the fixed time artificial insemination of cyclic buffaloes (Bubalus bubalis) in the Eastern Amazon [PDF]
, 2008 O presente estudo visou avaliar os efeitos da associação da medroxiprogesterona (análogo sintético da progesterona) ao protocolo Ovsynch sobre o crescimento folicular, a ovulação e a taxa de concepção de búfalas criadas na Amazônia Oriental (Tracuateua ...
ANDRADE, André Furugen Cesar de +7 more
core +2 more sources
Jurnal Peternakan Indonesia, 2020 Penelitian ini bertujuan untuk mengetahui pengaruh metode sinkronisasi estrus : ovsynch(P1), cosynch (P2) dan konvensional (P3) terhadap intensitas estrus pada kerbau rawa.
R. Suzana, Z. Udin, Hendri Hendri
doaj +1 more source
Timed artificial insemination protocols in dairy cattle: Functioning, shortcomings, and improvements
Czech Journal of Animal Science, 2023 Oestrus detection is currently at the top of the factors limiting the success of artificial insemination in dairy herds. This limitation becomes more pronounced as milk production increases because of higher metabolic clearance rates of steroid hormones ...
Amine Boudaoud
doaj +1 more source
Embryo survival in lactating dairy cows [PDF]
, 2000 Rates of embryo survival in lactating dairy cows were assessed in three separate studies. Based on pregnancy diagnoses 27 to 29 days after timed inseminations, survival to days 40 to 50 or day 57, depending on the study, varied from 9 to 88% in cows
Carmill, J.A. +3 more
core +2 more sources