Masashi Nagano

Aomori, 0348628, Japan

Last Updated: 09/26/2026

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Found 70 publications

Evaluation of vaginal electrical resistance as an indicator of optimal timing for mating in alpacas: a pilot study.

Evaluation of vaginal electrical resistance as an indicator of optimal timing for mating in alpacas: a pilot study.

Journal: The Journal of reproduction and development

Published: July 12, 2026

A retrospective study on reproduction in alpacas (Lama pacos) and cria growth after birth in Japan: the relationship between parturition and climate conditions.

A retrospective study on reproduction in alpacas (Lama pacos) and cria growth after birth in Japan: the relationship between parturition and climate conditions.

Journal: The Journal of veterinary medical science

Published: May 21, 2025

Impact of papain on the treatment of raw diluted dromedary semen.

Impact of papain on the treatment of raw diluted dromedary semen.

Journal: Reproduction in domestic animals = Zuchthygiene

Published: March 01, 2024

Effects of recombinant osteopontin expressed in Escherichia coli on the recovery of the endometrial epidermal growth factor profile and fertility in repeat breeder dairy cows.

Effects of recombinant osteopontin expressed in Escherichia coli on the recovery of the endometrial epidermal growth factor profile and fertility in repeat breeder dairy cows.

Journal: Theriogenology

Published: November 17, 2023

Pre-maturational culture promotes the developmental competence of bovine oocytes derived from an 8-day in vitro growth culture system.

Pre-maturational culture promotes the developmental competence of bovine oocytes derived from an 8-day in vitro growth culture system.

Journal: The Journal of reproduction and development

Published: May 17, 2023

A recently developed minimum volume, absorbent, vitrification device, the Kitasato Vitrification System gives excellent outcomes for in vitro produced bovine blastocysts.

A recently developed minimum volume, absorbent, vitrification device, the Kitasato Vitrification System gives excellent outcomes for in vitro produced bovine blastocysts.

Journal: Cryobiology

Published: March 13, 2023

Lipopolysaccharide (LPS) suppresses follicle development marker expression and enhances cytokine expressions, which results in fail to granulosa cell proliferation in developing follicle in cows.

Lipopolysaccharide (LPS) suppresses follicle development marker expression and enhances cytokine expressions, which results in fail to granulosa cell proliferation in developing follicle in cows.

Journal: Reproductive biology

Published: June 23, 2022

Relationship between the timing of insemination based on estrus detected by the automatic activity monitoring system and conception rates using sex-sorted semen in Holstein dairy cattle.

Relationship between the timing of insemination based on estrus detected by the automatic activity monitoring system and conception rates using sex-sorted semen in Holstein dairy cattle.

Journal: The Journal of reproduction and development

Published: June 01, 2022

Simultaneous free fatty acid elevations and accelerated desaturation in plasma and oocytes in early postpartum dairy cows under intensive feeding management.

Simultaneous free fatty acid elevations and accelerated desaturation in plasma and oocytes in early postpartum dairy cows under intensive feeding management.

Journal: Theriogenology

Published: April 05, 2022

100 Effects of days in milk and body condition score loss after parturition on oocyte triacylglycerol content in Holstein cows.

100 Effects of days in milk and body condition score loss after parturition on oocyte triacylglycerol content in Holstein cows.

Journal: Reproduction, fertility, and development

Published: March 01, 2022

Leptin receptor expression and its change in association with the normalization of EGF profile after seminal plasma treatment in repeat breeder dairy cows.

Leptin receptor expression and its change in association with the normalization of EGF profile after seminal plasma treatment in repeat breeder dairy cows.

Journal: The Journal of reproduction and development

Published: March 01, 2022

Effects of heat stress on the endometrial epidermal growth factor profile and fertility in dairy cows.

Effects of heat stress on the endometrial epidermal growth factor profile and fertility in dairy cows.

Journal: The Journal of reproduction and development

Published: January 31, 2022

Showing 1-12 of 70

Last Updated: 09/26/2026