Retired teacher (41 years) of reproductive and lactational physiology, animal production, organic chemistry, biochemistry and metabolism, climatic effects on animal production and communications. Research (over 45 years) in metabolism and endocrinology, reproductive and lactational physiology,seasonal effects on animal production, transgenerational epigenetic effects in sheep, sheep lactation, mastitis in sheep, sheep dairy farming, fetal growth, and epigenetic effects in sheep. Publications.Refereed publications: 37Conference publications and presentations; 42Textbook chapters: 4Twelve years as editor of The Proceedings of The New Zealand Society of Animal Production and latterly The New Journal of Animal Science and Production. Guest editor for two special issues of Animals.Reviewed many (about 50) scientific papers.