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Sakaguchi K, Maylem ERS, Tilwani RC, Yanagawa Y, Katagiri S, Atabay EC, Atabay EP, Nagano M. Effects of follicle-stimulating hormone followed by gonadotropin-releasing hormone on embryo production by ovum pick-up and in vitro fertilization in the river buffalo (Bubalus bubalis). Anim Sci J 2019; 90:690-695. [PMID: 30854764 PMCID: PMC6593430 DOI: 10.1111/asj.13196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/13/2019] [Accepted: 02/04/2019] [Indexed: 12/20/2022]
Abstract
In this study, we examined the effects of superstimulation using follicle‐stimulating hormone (FSH) followed by gonadotropin‐releasing hormone (GnRH) on buffalo embryo production by ultrasound‐guided ovum pick‐up (OPU) and in vitro fertilization (IVF). Nine Murrah buffaloes were subjected to OPU‐IVF without superstimulation (control). The morphologies of the oocytes collected were evaluated, and oocytes were then submitted to in vitro maturation (IVM). Two days after OPU, same nine buffaloes were treated with twice‐daily injections of FSH for 3 days for superstimulation followed by a GnRH injection. Oocytes were collected by OPU 23–24 hr after the GnRH injection and submitted to IVM (the superstimulated group). The total number of follicles, number of follicles with a diameter > 8 mm, and number of oocytes surrounded by multi‐layered cumulus cells were higher in the superstimulated group than in the control group (p ≤ 0.05). After IVF, the percentages of cleavage and development to blastocysts were higher in the superstimulated group than in the control group (p < 0.05). In conclusion, superstimulation improved the quality of oocytes and the embryo productivity of OPU‐IVF in river buffaloes.
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Affiliation(s)
- Kenichiro Sakaguchi
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Excel Rio S Maylem
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Ramesh C Tilwani
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Edwin C Atabay
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Eufrocina P Atabay
- Reproductive Biotechnology and Physiology Laboratory, Philippine Carabao Center, National Headquarters, Science City of Munoz, Nueva Ecija, Philippines
| | - Masashi Nagano
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
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