veterinaryВетеринария сегодняVeterinary Science Today2304-196X2658-6959"Veinard"10.29326/2304-196X-2019-3-30-34-38veterinary-426Research ArticleБОЛЕЗНИ КРСBOVINE DISEASESСОПУТСТВУЮЩИЕ ФАКТОРЫ, ВЛИЯЮЩИЕ НА ПРОДОЛЖИТЕЛЬНОСТЬ СТЕЛЬНОСТИ И ПЕРИНАТАЛЬНУЮ СМЕРТНОСТЬ У КОРОВ ГОЛШТИНО-ФРИЗСКОЙ ПОРОДЫCONCOMITANT FACTORS AFFECTING GESTATION LENGTH AND PERINATAL MORTALITY IN HOLSTEIN-FRIESIAN COWSBogasN. M.BogasN. M.

Ветеринарный врач

Veterinarian

neca.smb@gmail.comhttps://orcid.org/0000-0002-1598-1820SherasiyaA. V.SherasiyaA. V.

Ветеринарный врач, экс-ветеринарный инспектор

Ванканер

Veterinarian, Ex-Veterinary Officer

Wankaner

sherasiyaanjum@gmail.comhttps://orcid.org/0000-0002-4997-3933SimõesJ. C.SimõesJ. C.

PhD

факультет ветеринарии

PhD,

Department of Veterinary Sciences

jsimoes@utad.ptНаучно-исследовательский центр ветеринарии и изучения животных (CECAV), Университет Траз-уж-Мóнтиш и Áлту-Дóру, В´ила-Ре´алПортугалияThe Veterinary and Animal Research Centre (CECAV), University of Trás-os-Montes e Alto Douro, Vila RealPortugalНаучно-исследовательский центр ветеринарии и изучения животных (CECAV), Университет Траз-уж-Мóнтиш и Áлту-Дóру, В´ила-Ре´алПортугалияThe Veterinary and Animal Research Centre (CECAV), University of Trás-os-Montes e Alto Douro, Vila RealPortugal201903102019033438Copyright © Bogas N.M., Sherasiya A.V., Simões J.C., 20192019Bogas N.M., Sherasiya A.V., Simões J.C.Bogas N.M., Sherasiya A.V., Simões J.C.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://veterinary.arriah.ru/jour/article/view/426

Цель данного исследования состояла в идентификации и количественном определении факторов, оказывающих умеренное или сильное воздействие одновременно на продолжительность стельности (GL) и перинатальную смертность (в период до 4 суток после рождения) у коров голштино-фризской породы. Общее наименьшее среднеквадратичное значение продолжительности стельности (GL) составило 278,2 ± 0,2 суток (n = 962). В соответствии с многомерной моделью (p < 0,001) при оплодотворении быками-производителями голштино-фризской и красной голштино-фризской пород продолжительность стельности коров была короче (–2,0 суток и –3,9 суток соответственно), тогда как при осеменении быками-производителями бурой швицкой и абердин-ангусской пород продолжительность стельности была дольше на 2,0 суток и 2,3 суток соответственно. У первотелок и при двуплодной стельности, а также при отеле в июне и июле продолжительность стельности сокращалась на –1,4; –4,0; –1,9 и –1,8 суток соответственно. Инцидентность перинатальной смертности составляла 7,4% (n = 72), и такие случаи чаще наблюдали при двуплодной стельности (p < 0,01), чем при одноплодной стельности телочками (относительный риск = 8,1) или бычками (относительный риск = 7,9), а также у первотелок (относительный риск = 2,6) по сравнению с коровами (p < 0,05). В заключение необходимо отметить, что количество отелов и двуплодность были основными факторами, значимо влияющими одновременно на продолжительность стельности у коров и на инцидентность перинатальной смертности. Тем не менее все изученные факторы оказывали существенное воздействие на продолжительность стельности и должны учитываться при реализации программ по регулированию репродукции в молочных стадах.

The objective of this study was to identify and quantify factors presenting simultaneous moderate or strong influence on gestation length and perinatal mortality (until 4 days postpartum) in Holstein-Frisian dams. The overall gestation length least square mean was 278.2 ± 0.2 days (n = 962). According to the multivariate model (p < 0.001), a shorter gestation length was observed in Holstein-Friesian (–2.0 days) and Red Holstein-Friesian (–3.9 days) breed sires whereas Brown Swiss (2.0 days) and Aberdeen-Angus (2.3 days) breed sires showed a longer gestation length. Primiparous cows and twin pregnancies, as well calving in June and July, shortened gestation length in –1.4, –4.0, –1.9 and –1.8 days, respectively. The perinatal mortality incidence was 7.4% (n = 72) and was more likely to occur in twin pregnancies (p < 0.01) than in pregnancies carrying female (odds ratio = 8.1) or male (odds ratio = 7.9) singletons, as well in primiparous (odds ratio = 2.6) than multiparous dams (p < 0.05). In conclusion, parity and twinning were the major factors which influenced simultaneously gestation length of dams and perinatal mortality incidence. Nevertheless, all studied factors had a significant impact on gestation length and should be considered for reproductive management programs of dairy herds.

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The authors declare that there are no conflicts of interest present.