Results 41 to 50 of about 390,832 (275)
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,, Rayees, Dar, Mohammad
openaire +3 more sources
, 2020 The objective of this study was to evaluate the effect of different hormonal protocols on the reproductive performance of Santa Inês ewes in Amazon environmental conditions.
Regina Oliveira da Silva +5 more
semanticscholar +1 more source
Reproduction in domestic animals = Zuchthygiene, 2020 The present study compared the occurrence of estrus behavior and ovulation in response to the insertion of CIDR devices plus a classical treatment with equine chorionic gonadotrophin (eCG; single dose at CIDR removal) or alternative treatments with ...
Z. Santos-Jimenez +4 more
semanticscholar +1 more source
Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]
, 2008 Body condition score (BCS), energy content (EC), cumulative effective energy balance (CEEB), and blood serum concentrations of glucose, beta-hydroxybutyrate (BHBA), and nonesterified fatty acids ( NEFA) were measured throughout first lactation in 497 ...
A. Tsiaras +40 more
core +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
core +2 more sources
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. +3 more
core +2 more sources
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 +2 more
doaj +1 more source
SYNCHRONIZATION OF ESTRUS WITH PGF ANALOGUE IN EWES AND GOATS DURING TWO SEASONS
The Iraqi Journal of Veterinary Medicine, 1989 Trials had been made for synchronization of estrus in both ewes and goats during Summer and Autumn seasons following double injection of PGF 2α . The results showed that the synchronization of estrus as well as the conception rates in ewes were lower ...
AL-SAADI, H.A.K, AL-ATTIA, H.H.
doaj +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 +9 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 +3 more
doaj +1 more source