Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase
Nema prikaza
Autori
Šuluburic, AdamMilanovic, Svetlana
Vranješ-Đurić, Sanja
Jovanović, Ivan B.
Barna, Tomislav
Stojić, Milica
Fratric, Natalija
Szenci, Otto
Gvozdic, Dragan
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Early embryonic development may be negatively affected by insufficient progesterone (P4) production. Therefore, the aim of our study was to increase P4 by gonadotropin-releasing hormone (GnRH) and/or human chorionic gonadotropin (hCG) treatments after inducing oestrus by prostaglandin (PG) treatment. Lactating Simmental dairy cows (n = 110), between 1 to 5 lactations, with an average milk production of 6,500 l/305 days, at 40-80 days postpartum were used and grouped as follows: (1) PG + GnRH treatment at AI (GnRH group), (2) PG + hCG treatment at day 7 after AI (hCG group), (3) PG + GnRH at AI + hCG treatment at day 7 after AI (GnRH/hCG group), and (4) spontaneous oestrus (C: control group). All animals were double inseminated (at the time of oestrus detection and 12 +/- 2 h thereafter). Blood serum and milk samples were collected at the day of observed oestrus (day 0), and 14, 21 and 28 days after AI. Serum P4 was determined using a commercial radioimmunoassay (RIA) test (INEP, Zemun)..., and milk P4 was determined using enzyme-linked immunoassay (ELISA) test (NIV Novi Sad). Pregnancy status was confirmed by ultrasonography between days 28 and 35 after AI. Differences of serum or milk P4 medians, pregnancy (and calving) rate were determined using Dunns Multiple Comparison Tests and Z test, respectively. Serum P4 medians were significantly higher at days 14, 21 and 28 after AI in the hCG-treated animals, indicating increased luteal activity, with a similar tendency in whole milk P4 values. Treatment with hCG during the early luteal phase significantly contributed to the maintenance of gestation at days 28-35 after AI, and also increased the calving rate in Simmental dairy cows.
Ključne reči:
Progesterone / oestrus synchronisation / pregnancy rate / calving rate / Simmental dairy cowsIzvor:
Acta Veterinaria Hungarica, 2017, 65, 3, 446-458Finansiranje / projekti:
- Biotehnologija u regulaciji proizvodnog i reproduktivnog statusa i zdravstvenog stanja kod visoko-mlečnih krava (RS-MESTD-Technological Development (TD or TR)-31050)
- Unapređenje i razvoj higijenskih i tehnoloških postupaka u proizvodnji namirnica životinjskog porekla u cilju dobijanja kvalitetnih i bezbednih proizvoda konkurentnih na svetskom tržištu (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46009)
- Molekularno-genetička i ekofiziološka istraživanja u zaštiti autohtonih animalnih genetičkih resursa, očuvanju dobrobiti, zdravlja i reprodukcije gajenih životinja i proizvodnji bezbedne hrane (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-46002)
DOI: 10.1556/004.2017.042
ISSN: 0236-6290; 1588-2705
PubMed: 28956489
WoS: 000411907900012
Scopus: 2-s2.0-85030564648
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Šuluburic, Adam AU - Milanovic, Svetlana AU - Vranješ-Đurić, Sanja AU - Jovanović, Ivan B. AU - Barna, Tomislav AU - Stojić, Milica AU - Fratric, Natalija AU - Szenci, Otto AU - Gvozdic, Dragan PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1757 AB - Early embryonic development may be negatively affected by insufficient progesterone (P4) production. Therefore, the aim of our study was to increase P4 by gonadotropin-releasing hormone (GnRH) and/or human chorionic gonadotropin (hCG) treatments after inducing oestrus by prostaglandin (PG) treatment. Lactating Simmental dairy cows (n = 110), between 1 to 5 lactations, with an average milk production of 6,500 l/305 days, at 40-80 days postpartum were used and grouped as follows: (1) PG + GnRH treatment at AI (GnRH group), (2) PG + hCG treatment at day 7 after AI (hCG group), (3) PG + GnRH at AI + hCG treatment at day 7 after AI (GnRH/hCG group), and (4) spontaneous oestrus (C: control group). All animals were double inseminated (at the time of oestrus detection and 12 +/- 2 h thereafter). Blood serum and milk samples were collected at the day of observed oestrus (day 0), and 14, 21 and 28 days after AI. Serum P4 was determined using a commercial radioimmunoassay (RIA) test (INEP, Zemun), and milk P4 was determined using enzyme-linked immunoassay (ELISA) test (NIV Novi Sad). Pregnancy status was confirmed by ultrasonography between days 28 and 35 after AI. Differences of serum or milk P4 medians, pregnancy (and calving) rate were determined using Dunns Multiple Comparison Tests and Z test, respectively. Serum P4 medians were significantly higher at days 14, 21 and 28 after AI in the hCG-treated animals, indicating increased luteal activity, with a similar tendency in whole milk P4 values. Treatment with hCG during the early luteal phase significantly contributed to the maintenance of gestation at days 28-35 after AI, and also increased the calving rate in Simmental dairy cows. T2 - Acta Veterinaria Hungarica T1 - Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase VL - 65 IS - 3 SP - 446 EP - 458 DO - 10.1556/004.2017.042 ER -
@article{ author = "Šuluburic, Adam and Milanovic, Svetlana and Vranješ-Đurić, Sanja and Jovanović, Ivan B. and Barna, Tomislav and Stojić, Milica and Fratric, Natalija and Szenci, Otto and Gvozdic, Dragan", year = "2017", abstract = "Early embryonic development may be negatively affected by insufficient progesterone (P4) production. Therefore, the aim of our study was to increase P4 by gonadotropin-releasing hormone (GnRH) and/or human chorionic gonadotropin (hCG) treatments after inducing oestrus by prostaglandin (PG) treatment. Lactating Simmental dairy cows (n = 110), between 1 to 5 lactations, with an average milk production of 6,500 l/305 days, at 40-80 days postpartum were used and grouped as follows: (1) PG + GnRH treatment at AI (GnRH group), (2) PG + hCG treatment at day 7 after AI (hCG group), (3) PG + GnRH at AI + hCG treatment at day 7 after AI (GnRH/hCG group), and (4) spontaneous oestrus (C: control group). All animals were double inseminated (at the time of oestrus detection and 12 +/- 2 h thereafter). Blood serum and milk samples were collected at the day of observed oestrus (day 0), and 14, 21 and 28 days after AI. Serum P4 was determined using a commercial radioimmunoassay (RIA) test (INEP, Zemun), and milk P4 was determined using enzyme-linked immunoassay (ELISA) test (NIV Novi Sad). Pregnancy status was confirmed by ultrasonography between days 28 and 35 after AI. Differences of serum or milk P4 medians, pregnancy (and calving) rate were determined using Dunns Multiple Comparison Tests and Z test, respectively. Serum P4 medians were significantly higher at days 14, 21 and 28 after AI in the hCG-treated animals, indicating increased luteal activity, with a similar tendency in whole milk P4 values. Treatment with hCG during the early luteal phase significantly contributed to the maintenance of gestation at days 28-35 after AI, and also increased the calving rate in Simmental dairy cows.", journal = "Acta Veterinaria Hungarica", title = "Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase", volume = "65", number = "3", pages = "446-458", doi = "10.1556/004.2017.042" }
Šuluburic, A., Milanovic, S., Vranješ-Đurić, S., Jovanović, I. B., Barna, T., Stojić, M., Fratric, N., Szenci, O.,& Gvozdic, D.. (2017). Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase. in Acta Veterinaria Hungarica, 65(3), 446-458. https://doi.org/10.1556/004.2017.042
Šuluburic A, Milanovic S, Vranješ-Đurić S, Jovanović IB, Barna T, Stojić M, Fratric N, Szenci O, Gvozdic D. Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase. in Acta Veterinaria Hungarica. 2017;65(3):446-458. doi:10.1556/004.2017.042 .
Šuluburic, Adam, Milanovic, Svetlana, Vranješ-Đurić, Sanja, Jovanović, Ivan B., Barna, Tomislav, Stojić, Milica, Fratric, Natalija, Szenci, Otto, Gvozdic, Dragan, "Progesterone Concentration, Pregnancy and Calving Rate in Simmental Dairy Cows After Oestrus Synchronisation and Hcg Treatment During the Early Luteal Phase" in Acta Veterinaria Hungarica, 65, no. 3 (2017):446-458, https://doi.org/10.1556/004.2017.042 . .