Infrared thermographical differentiation of estrus and non-estrus stages of dairy animals [PDF]
The Pharma Innovation, 2021 The present investigation was planned to evaluate the usefulness of Infrared thermorgraphical camera for discrimination of various stages of estrus i.e. onset of estrus, standing heat and non estrus conditions in sahiwal cows. The experiments were conducted on ten healthy, cyclic sahiwal cows were maintained at DDD farm of LFC at DUVASU, Mathura.
Akansha Gurung +6 more
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Inseminations at Estrus Induced by Presynchronization Before Application of Synchronized Estrus and Ovulation [PDF]
Journal of Dairy Science, 2005 A controlled field study examined conception rates after 2 timed artificial insemination (TAI) breeding protocols conducted on 2 commercial dairy farms. Estrous cycles in postpartum lactating cows were presynchronized with 2 injections of PGF(2alpha) given 14 d apart (Pre-synch) and then, after 12 d, the standard Ovsynch protocol (injection of GnRH 7 d
A.P. Phatak, Jeffrey S. Stevenson
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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
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 +4 more
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Ovozoa: Journal of Animal Reproduction, 2022 This study aimed to determine the length of the estrus period in Aceh cows based on changes in the characteristics of cervical mucus observed using a camera-equipped artificial insemination (AI) endoscope.
Dian Mulfristia +6 more
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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
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The Effect of Synchronizing with the PGF2α hormone on the Estrus Activity of Madura Cows [PDF]
BIO Web of ConferencesThis research aims to determine the biological response of administering the PGF2α hormone to the estrous activity of Madurese cows. This research method uses two observation techniques, namely estrus synchronization by administering the PGF2α hormone ...
Luthfi Muchamad +4 more
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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
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Induction and Synchronization of Estrus
, 2021 Estrus cycle is a rhythmic change that occur in the reproductive system of females starting from one estrus phase to another. The normal duration of estrus cycle is 21 days in cow, sow, and mare, 17 days in ewe, and 20 days in doe. The species which exhibit a single estrus cycle are known as monstrous and species which come into estrus twice or more ...
Prasanna Pal, Mohammad Rayees Dar
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Analysis of cow sweat volatile chemical compounds in gas chromatography mass spectrometry (GC-MS) device and their importance in heat detection [PDF]
BIO Web of ConferencesDetection of estrus is very important for the profitability of dairy cattle. Because one of the main goals of cattle breeding is for each cow to give birth to a healthy calf a year.
Anitaş Özgül, Göncü Serap
doaj +1 more source