Results 51 to 60 of about 81,652 (368)
Artificial insemination timing on pregnancy rate of Holstein cows using an automated activity monitoring [PDF]
Ciência Rural, 2023 : This study evaluated the probability of pregnancy and associated factors for two times artificial inseminations (AI), 8 or 10 hours after automated activity monitoring (AAM) alarm on the first postpartum AI of 1,054 Holstein dairy cows.
Letícia Ribeiro Marques +5 more
doaj +1 more source
Towards Sustainable Dairy Management - A Machine Learning Enhanced Method for Estrus Detection
Knowledge Discovery and Data Mining, 2019 Our research tackles the challenge of milk production resource use efficiency in dairy farms with machine learning methods. Reproduction is a key factor for dairy farm performance since cows milk production begin with the birth of a calf.
Kevin Fauvel +4 more
semanticscholar +1 more source
Alcoholism: Clinical and Experimental Research, Volume 46, Issue 11, Page 1993-2009, November 2022., 2022 The current study investigated whether prenatal alcohol exposure increases vulnerability to the behavioral consequences of adolescent alcohol exposure. Early alcohol exposure alone produced hyperactivity and some learning deficits, while adolescent alcohol exposure alone altered emotional responding in females.
Rashmi D. Risbud +2 more
wiley +1 more source
ADAPTING THE TREATMENT OF OVARIAN CYSTS ACCORDING TO THEIR TYPE IN DAIRY CATTLE [PDF]
Journal of Applied Life Sciences and Environment, 2021 Ovarian cysts, estimated as the most frequent ovarian disorder in dairy cattle, can impact the economic aspect and trigger serious loss by affecting the reproductive performance.
Silviu-Ionuț BORȘ, Alina BORȘ
doaj +1 more source
Superovulation, in vivo Embryo Recovery and Cryopreservation for Aoudad (Ammotragus Lervia) Females Using Osmotic Pumps and Vitrification : A Preliminary Experience and its Implications for Conservation [PDF]
, 2013 We thank all of the administrative, veterinary and animal keeper staff of the Leon Zoological Park and the embryologists (especially to Claudia Gonzalez) of the Instituto de Ciencias en Reproducción Humana, also to J.I Castillo-Quan for critical reading ...
de Barroso-Padilla, José Jesús +5 more
core +1 more source
Journal of Dairy Science, 2016 The objective was to evaluate if expression of estrus by dairy cattle altered fertility in timed artificial insemination (AI; n=5,430) or timed embryo transfer (ET; n=2,003) programs that used estradiol and progesterone (P4) to synchronize ovulation ...
M. Pereira, M. Wiltbank, J. Vasconcelos
semanticscholar +1 more source
Use of protocol with prolonged proestrus with and without eCG in dual purpose dairy Holsteins cows in the Ecuadorian Amazons [PDF]
SPERMOVA, 2020 The objective was to evaluate the effect of eCG on presence estrus, ovulation time, preovulatory follicle diameter and pregnancy rate in Holstein cows treated with a prolonged proestrus protocol in the Ecuadorian Amazon.
Manuel Ortega-Coello +2 more
doaj +1 more source
Genes, 2019 The pituitary gland is the most important endocrine organ that mainly regulates animal estrus by controlling the hormones synthesis. There is a significant difference between the estrus state and anestrus state of sheep pituitary system. Here, we studied
Xiaoyue Li +11 more
semanticscholar +1 more source
Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria [PDF]
Bulgarian Journal of Veterinary Medicine, 2020 A characteristic feature of water buffalo heifers is that they approach breeding maturity later than bovine heifers. From a physiological and endocrinological view, this is related to a later puberty, which affects the overall reproductive performance of
V. Manov, V. Planski, G. Popov
doaj +1 more source
Animal, 2019 Expression of estrus near timed artificial insemination (TAI) is associated with greater fertility, and estrus detection could improve TAI fertility or direct TAI management, although accurate estrus detection can be difficult and time-consuming using ...
É. Nogueira +8 more
semanticscholar +1 more source