Factors affecting expression of estrus in dairy cows with high milk yields

dc.contributor.authorGavelis, Aurimas
dc.contributor.authorŽilaitis, Vytuolis
dc.contributor.authorArunas, Juozaitis
dc.contributor.authorVida, Juozaitiene
dc.contributor.authorGiedrius, Palubinskas
dc.contributor.authorYılmaz, Ayhan
dc.date.accessioned2019-11-12T14:13:08Z
dc.date.available2019-11-12T14:13:08Z
dc.date.issued2018
dc.departmentBelirleneceken_US
dc.description.abstractThe objectives of this study were to define the effect of the milk progesterone (P4) concentration on estrus expression in dairy cows with high milk yield and to identify the effect of milk yield and parity on the milk P4 concentration and cow’s pregnancy after artificial insemination (AI). In this study, 48 clinically healthy cows without reproduction disorders, on day 90-100 after calving were used. At the beginning of estrus and 12 hours after the beginning of estrus, the milk P4 concentration in dairy cows with high milk yield (group 3) was higher than in group 2 (33.66; 22.36%) and in group 1 (51.60; 65.26%) (P < 0.001). The milk P4 concentration in the ? 3 lactation cows was higher than the second (13.45%; P > 0.05) and the first (28.28%; P < 0.01) lactation ones (28.28%; P < 0.01). The milk P4 concentration at the beginning of estrus and 12 hours after the beginning of estrus in pregnant and non-pregnant cows was 2.58 and 3.32; 4.20 and 5.00 ng/ml, respectively (P < 0.001). As a result, it was concluded that high progesterone concentration affected the expression of estrus and pregnancy results in dairy cows, and the measuring of progesterone concentration in milk can be used as a non-invasive method to provide detailed information about fertility in high milk yield cows.en_US
dc.identifier.scopus2-s2.0-85058841564
dc.identifier.scopusqualityQ4
dc.identifier.urihttps://hdl.handle.net/20.500.12604/1385
dc.identifier.wosWOS:000451770400009
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherMed. Weter.en_US
dc.relation.ispartofseries74 (12): 787-790;
dc.relation.publicationcategoryUluslararası Editör Denetimli Dergi Makalesien_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKG_20241224
dc.subjectdairy cows, estrus expression, milk progesterone, yield, parityen_US
dc.titleFactors affecting expression of estrus in dairy cows with high milk yieldsen_US
dc.typeArticleen_US

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