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- Murtaza, S.Department of Clinical Sciences, Bahauddin Zakariya University, Multan, Pakistan (författare)
Effect of exogenous administration of oxytocin on postpartum follicular dynamics, oestrous rate and ovulation in Nili-Ravi buffaloes
- Artikel/kapitelEngelska2021
Förlag, utgivningsår, omfång ...
- 2021-08-19
- John Wiley & Sons,2021
- printrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:hj-54361
- https://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-54361URI
- https://doi.org/10.1111/rda.14001DOI
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- Språk:engelska
- Sammanfattning på:engelska
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- Based on different surveys, dairy farmers are concerned about extensive use of exogenous oxytocin in buffaloes, which is being held responsible for reproductive problems including irregular oestrous cycle and delayed ovulation. For these concerns, effects of oxytocin injection on postpartum follicular dynamics, postpartum oestrous interval (PEI), oestrous length, the interval from onset of ostrus to ovulation and blood progesterone (P4) were studied in Nili-Ravi buffaloes. For this purpose, 23 animals within 1 week after calving were randomly divided into three groups: without oxytocin (CON; n = 7), 10 i.u. oxytocin (LOW; n = 8), 30 i.u. oxytocin – (HIGH; n = 8) and used to record the PEI for the study period of 154 days. At subsequent estrus, three buffaloes from each group (not served) were selected randomly to monitor two cycles for 6 weeks. Transrectal ultrasonography was performed to evaluate follicular and corpus luteum (CL) development, and blood sampling was done for progesterone (P4) analysis. These results revealed that postpartum oestrous interval (PEI) decreased significantly in oxytocin-treated groups. The number of small, medium and total follicles on the left ovary was significantly higher in the HIGH group. However, an overall number of small and total follicles on both right and left ovaries was significantly higher in CON and HIGH groups. On the other hand, there was no difference in the number of follicles on the right ovary among all treatment groups. The same was true for the size of pre-ovulatory follicles, CL, P4 concentrations and oestrous cycle length. The intervals from onset of estrus to ovulation and from standing estrus to ovulation were increased considerably in the HIGH group. It is concluded that exogenous oxytocin administration resulted in the shortening of PEI but triggered a delay in ovulation. Moreover, a higher dose of oxytocin could stimulate the growth of small, medium, and total follicles in postpartum Nili-Ravi buffaloes.
Ämnesord och genrebeteckningar
- LANTBRUKSVETENSKAPER Bioteknologi med applikationer på växter och djur hsv//swe
- AGRICULTURAL SCIENCES Agricultural Biotechnology hsv//eng
- CL
- follicles
- Nili-Ravi buffaloes
- oxytocin
- postpartum oestrous interval
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Sattar, A.Department of Theriogenology, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan (författare)
- Ahmad, N.Department of Theriogenology, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan (författare)
- Jamil Ahmad, M.Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction Science, Huazhong Agriculture University, Wuhan, China (författare)
- Akhtar, S.Department of Clinical Sciences, Bahauddin Zakariya University, Multan, Pakistan (författare)
- Ahmad, E.Department of Clinical Sciences, Bahauddin Zakariya University, Multan, Pakistan (författare)
- Ahmad, T.Department of Clinical Sciences, Bahauddin Zakariya University, Multan, Pakistan (författare)
- Omer, TalhaJönköping University,IHH, Statistik,Department of Statistics and Computer Sciences, UVAS, Lahore, Pakistan(Swepub:hj)ometal (författare)
- Department of Clinical Sciences, Bahauddin Zakariya University, Multan, PakistanDepartment of Theriogenology, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan (creator_code:org_t)
Sammanhörande titlar
- Ingår i:Reproduction in domestic animals: John Wiley & Sons56:11, s. 1369-13760936-67681439-0531
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