Results 11 to 20 of about 65,862 (290)

Immunolocalization of steroidogenic enzymes in the vaginal mucous of Galea spixii during the estrous cycle. [PDF]

open access: yes, 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

Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria [PDF]

open access: yesBulgarian 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

ADAPTING THE TREATMENT OF OVARIAN CYSTS ACCORDING TO THEIR TYPE IN DAIRY CATTLE [PDF]

open access: yesJournal 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

Induction of lactational estrus in organic piglet production [PDF]

open access: yes, 2009
The longer lactation period required in organic piglet producing herds reduces the potential number of produced litters per sow per year compared with that of conventional production.
Hermansen, J.E., Kongsted, A.G.
core   +1 more source

The Effect of Synchronizing with the PGF2α hormone on the Estrus Activity of Madura Cows [PDF]

open access: yesBIO Web of Conferences
This 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
doaj   +1 more source

Analysis of cow sweat volatile chemical compounds in gas chromatography mass spectrometry (GC-MS) device and their importance in heat detection [PDF]

open access: yesBIO Web of Conferences
Detection 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

Effects of subcutaneous progesterone injection as a short-time estrus synchronization protocol in ewes: a preliminary study [PDF]

open access: yesThe 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

The effect of exogenous glucose infusion on early embryonic development in lactating dairy cows [PDF]

open access: yes, 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

Genetic Relationship of Body Energy and Blood Metabolites with Reproduction in Holstein Cows [PDF]

open access: yes, 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

A combinatorial model for effective estrus detection in Murrah buffalo [PDF]

open access: yesVeterinary 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

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