Results 21 to 30 of about 64,651 (320)
Effects of subcutaneous progesterone injection as a short-time estrus synchronization protocol in ewes: a preliminary study [PDF]
The Iranian Journal of Veterinary Science and Technology, 2022 The present study aimed to evaluate the effect of short-time progesterone injection subcutaneously (SC) on estrus synchronization of Baluchi ewes. All ewes received one dose of PGF2α (15 mg) and then were divided into two groups.
Behnam Valizadeh +3 more
doaj +1 more source
Immunolocalization of steroidogenic enzymes in the vaginal mucous of Galea spixii during the estrous cycle. [PDF]
, 2017 BackgroundThe synthesis of sex steroids is controlled by several enzymes such as17α-hydroxylase cytochrome P450 (P450c17) catalyzing androgen synthesis and aromatase cytochrome P450 (P450arom) catalyzing estrogen synthesis, both of which must complex ...
Assis Neto, Antônio Chaves de +5 more
core +1 more source
Frontiers in Veterinary Science, 2023 IntroductionNorwegian Red has been shown to have high levels of estrus behavior under experimental conditions. However, the estrus behaviors of Norwegian Red cows have not been studied under commercial conditions.MethodsA herd of 89 Norwegian Red cows ...
Maien Munthe-Kaas +5 more
doaj +1 more source
Estrus-Cycle Regulation of Cortical Inhibition [PDF]
Current Biology, 2018 SummaryFemale mammals experience cyclical changes in sexual receptivity known as the estrus-cycle. Little is known about how estrus affects the cortex although alterations in sensation, cognition and the cyclic occurrence of epilepsy suggest brain-wide processing changes.
Ann M. Clemens +9 more
openaire +4 more sources
A combinatorial model for effective estrus detection in Murrah buffalo [PDF]
Veterinary World, 2017 Background: Buffaloes are silent heat animals and lacunae in their estrus detection results a substantial economic loss in developing countries.
Ramu Muthu Selvam, Govindaraju Archunan
doaj +1 more source
Presynchronizing PGF2α and GnRH injections before timed artificial insemination CO-Synch + CIDR program [PDF]
, 2013 Fixed-time artificial insemination is an effective management tool that reduces the labor associated with more conventional artificial insemination programs requiring detection of estrus.
Breiner, Ryan M. +6 more
core +3 more sources
ESTRUS BEHAVIOR CHANGES DURING THE FIRST, SECOND, AND ≥3RD POSTPARTUM OF LACTATING DAIRY COWS [PDF]
مجلة الأنبار للعلوم الزراعيةThis study evaluated the changes in estrus behavior during the first, second, and third postpartum (PP) periods of dairy cows. Milk samples were collected from thirty lactating Holstein Friesian cows on Mondays, Wednesdays, and Fridays to determine ...
H. M. H. Zebari, M. S. Rutter, E. Bleach
doaj +1 more source
Tropical and Subtropical Agroecosystems, 2023 Background: Genetic improvement in the sheep species focuses on increasing the number of offspring per sheep. Heritable characteristics such as ovulation rate, fertility, and prolificacy are desirable.
Dante J. Hernández-Rubio +5 more
doaj +1 more source
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
Animal, 2022 The primary objective of this study was to develop an automated infrared thermography platform (Estrus BenchMark) capable of measuring skin temperature and tail movements as a means of identifying cows in estrus.
H.J. Perez Marquez +5 more
doaj