Effects of heat stress on conception in Holstein and Jersey cattle and oocyte maturation in vitro
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Korea, located in East Asia in the northern hemisphere, is experiencing severe climate changes. Specifically, the heat stress caused by global warming is negatively affecting the dairy sector, including milk production and reproductive performance, as the major dairy cattle Holstein-Friesian is particularly susceptible to heat stress. Here, we collected artificial insemination and pregnancy data of the Holstein and the Jersey cows from a dairy farm from 2014 to 2021 and analyzed the association between the conception rate and the temperature- humidity index, calculated using the data from the closest official weather station. As the temperature-humidity index threshold increased, the conception rate gradually decreased. However, this decrease was steeper in the Holstein breed than in the Jersey one at a temperature- humidity index threshold of 75. To evaluate the effects of heat stress on the oocyte quality, we examined the nuclear and cytoplasmic maturation of Holstein (n = 158, obtained from six animals) and Jersey oocytes (n = 123, obtained from six animals), obtained by ovum pick-up. There were no differences in the nuclear maturation between the different conditions (heat stress: 40.5℃, non- heat stress: 37.5℃) or breeds, although the Holstein oocytes seemed to have a lower metaphase II development (p = 0.0521) after in vitro maturation under heat stress conditions. However, we found that the Holstein metaphase II oocytes exposed to heat stress presented more reactive oxygen species and a peripheral distribution of the mitochondria, compared to those of the Jersey cattle. Here, we show that weather information from local meteorological stations can be used to calculate the temperature-humidity index threshold at which heat stress influences the conception rate, and that the Jersey cows are more tolerant to heat stress in terms of their conception rate at a temperature-humidity index over 75. The lower fertility of the Holstein cows is likely attributed to impaired cytoplasmic maturation induced by heat stress. Thus, the Jersey cows can be a good breed for the sustainability of dairy farms for addressing climate changes in South Korea, as they are more resistant to hyperthermia.
Abstract
Korea, located in East Asia in the northern hemisphere, is experiencing severe climate changes. Specifically, the heat stress caused by global warming is negatively affecting the dairy sector, including milk production and reproductive performance, as the major dairy cattle Holstein-Friesian is particularly susceptible to heat stress. Here, we collected artificial insemination and pregnancy data of the Holstein and the Jersey cows from a dairy farm from 2014 to 2021 and analyzed the association between the conception rate and the temperature- humidity index, calculated using the data from the closest official weather station. As the temperature-humidity index threshold increased, the conception rate gradually decreased. However, this decrease was steeper in the Holstein breed than in the Jersey one at a temperature- humidity index threshold of 75. To evaluate the effects of heat stress on the oocyte quality, we examined the nuclear and cytoplasmic maturation of Holstein (n = 158, obtained from six animals) and Jersey oocytes (n = 123, obtained from six animals), obtained by ovum pick-up. There were no differences in the nuclear maturation between the different conditions (heat stress: 40.5℃, non- heat stress: 37.5℃) or breeds, although the Holstein oocytes seemed to have a lower metaphase II development (p = 0.0521) after in vitro maturation under heat stress conditions. However, we found that the Holstein metaphase II oocytes exposed to heat stress presented more reactive oxygen species and a peripheral distribution of the mitochondria, compared to those of the Jersey cattle. Here, we show that weather information from local meteorological stations can be used to calculate the temperature-humidity index threshold at which heat stress influences the conception rate, and that the Jersey cows are more tolerant to heat stress in terms of their conception rate at a temperature-humidity index over 75. The lower fertility of the Holstein cows is likely attributed to impaired cytoplasmic maturation induced by heat stress. Thus, the Jersey cows can be a good breed for the sustainability of dairy farms for addressing climate changes in South Korea, as they are more resistant to hyperthermia.
참고문헌 (39)
- Ray DE, "Season and lactation number effects on milk production and reproduction of dairy cattle in Arizona", J Dairy Sci, 75, pp.2976~2983 (1992)[DOI]
- Lim Dong-Hyun, "The effect of seasonal thermal stress on milk production and milk compositions of Korean Holstein and Jersey cows", Animal Bioscience, 34(4), pp.567~574 (2021), 아세아·태평양축산학회[DOI]
- 백준범, "국내 폭염 연구 동향 분석", 한국재난정보학회 논문집, 17(4), pp.755~768 (2021), 한국재난정보학회
- Aguilar I, "Short communication : genetic trends of milk yield under heat stress for US Holsteins", J Dairy Sci, 93, pp.1754~1758 (2010)[DOI]
- Nardone A, "Effects of climate changes on animal production and sustainability of livestock systems", Livest Sci, 130, pp.57~69 (2010)[DOI]
- Biffani S, "Short communication : effect of heat stress on nonreturn rate of Italian Holstein cows", J Dairy Sci, 99, pp.5837~5843 (2016)[DOI]
- Tao S, "PHYSIOLOGY SYMPOSIUM: effects of heat stress during late gestation on the dam and its calf", J Anim Sci, 97, pp.2245~2257 (2019)
- Dado-Senn B, "Carry over effects of late-gestational heat stress on dairy cattle progeny", Theriogenology, 154, pp.17~23 (2020)[DOI]
- Moore RB, "Effects of late gestation heat stress on postpartum milk production and reproduction in dairy cattle", J Dairy Sci, 75, pp.1877~1882 (1992)[DOI]
- Roth Z., "Symposium review : reduction in oocyte developmental competence by stress is associated with alterations in mitochondrial function", J Dairy Sci, 101, pp.3642~3654 (2018)[DOI]
- Smith DL, "Short communication : comparison of the effects of heat stress on milk and component yields and somatic cell score in Holstein and Jersey cows", J Dairy Sci, 96, pp.3028~3033 (2013)[DOI]
- Badinga L, "Effects of climatic and management factors on conception rate of dairy cattle in subtropical environment", J Dairy Sci, 68, pp.78~85 (1985)[DOI]
- Norman HD, "Reproductive status of Holstein and Jersey cows in the United States", J Dairy Sci, 92, pp.3517~3528 (2009)[DOI]
- "Reproductive status of cows in Dairy Herd Improvement programs and bred using artificial insemination" (2020)[URL]
- Lee J, "Analysis of circulating-microRNA expression in lactating Holstein cows under summer heat stress", PLOS ONE, 15, pp.e0231125~ (2020)[DOI]
- Dikmen S, "Is the temperature-humidity index the best indicator of heat stress in lactating dairy cows in a subtropical environment?", J Dairy Sci, 92, pp.109~116 (2009)[DOI]
- Mader TL, "Environmental factors influencing heat stress in feedlot cattle", J Anim Sci, 84, pp.712~719 (2006)[DOI]
- National Research Council, "Nutrient requirements of dairy cattle" (2001), The National Academies Press
- Seneda MM, "Relationship between follicle size and ultrasound-guided transvaginal oocyte recovery", Anim Reprod Sci, 67, pp.37~43 (2001)[DOI]
- Muller CJC, "Effect of summer climatic conditions on different heat tolerance indicators in primiparous Friesian and Jersey cows", S Afr J Anim Sci, 23, pp.98~103 (1993)
- "R: a language and environment for statistical computing" (2021)[URL]
- Ouellet V, "The relationship between the number of consecutive days with heat stress and milk production of Holstein dairy cows raised in a humid continental climate", J Dairy Sci, 102, pp.8537~8545 (2019)[DOI]
- Ravagnolo O, "Genetic component of heat stress in dairy cattle, development of heat index function", J Dairy Sci, 83, pp.2120~2125 (2000)[DOI]
- Bernabucci U, "The effects of heat stress in Italian Holstein dairy cattle", J Dairy Sci, 97, pp.471~486 (2014)[DOI]
- Carabaño MJ, "Modeling heat stress under different environmental conditions", J Dairy Sci, 99, pp.3798~3814 (2016)[DOI]
- De Rensis F, "Fertility in postpartum dairy cows in winter or summer following estrus synchronization and fixed time AI after the induction of an LH surge with GnRH or hCG", Theriogenology, 58, pp.1675~1687 (2002)[DOI]
- Wilson SJ, "Effects of controlled heat stress on ovarian function of dairy cattle. 2. Heifers", J Dairy Sci, 81, pp.2132~2138 (1998)[DOI]
- Wilson SJ, "Effects of controlled heat stress on ovarian function of dairy cattle. 1. Lactating cows", J Dairy Sci, 81, pp.2124~2131 (1998)[DOI]
- Wolfenson D, "Impaired reproduction in heat-stressed cattle : basic and applied aspects", Anim Reprod Sci, 60-61, pp.535~547 (2000)[DOI]
- Wolfenson D, "Impact of heat stress on cow reproduction and fertility", Anim Front, 9, pp.32~38 (2019)[DOI]
- Ferreira RM, "The low fertility of repeat-breeder cows during summer heat stress is related to a low oocyte competence to develop into blastocysts", J Dairy Sci, 94, pp.2383~2392 (2011)[DOI]
- Gendelman M, "Seasonal effect on germinal vesicle-stage bovine oocytes is further expressed by alterations in transcript levels in the developing embryos associated with reduced developmental competence", Biol Reprod, 8, pp.1~9 (2012)[DOI]
- Krisher RL, "The effect of oocyte quality on development", J Anim Sci, 82, pp.E14~E23 (2004)[DOI]
- Mao L, "Behaviour of cytoplasmic organelles and cytoskeleton during oocyte maturation", Reprod Biomed Online, 28, pp.284~299 (2014)[DOI]
- Reader KL, "The role of oocyte organelles in determining developmental competence", Biology, 6, pp.35~ (2017)[DOI]
- 사수진, "Heat waves impair cytoplasmic maturation of oocytes and preimplantation development in Korean native cattle (Hanwoo)", Korean Journal of Agricultural Science, 45(3), pp.493~498 (2018), 농업과학연구소[DOI]
- Yaacobi-Artzi S, "Melatonin slightly alleviates the effect of heat shock on bovine oocytes and resulting blastocysts", Theriogenology, 158, pp.477~489 (2020)[DOI]
- Stojkovic M, "Mitochondrial distribution and adenosine triphosphate content of bovine oocytes before and after in vitro maturation : correlation with morphological criteria and developmental capacity after in vitro fertilization and culture", Biol Reprod, 64, pp.904~909 (2001)[DOI]
- Gendelman M, "Incorporation of coenzyme q10 into bovine oocytes improves mitochondrial features and alleviates the effects of summer thermal stress on developmental competence", Biol Reprod, 87, pp.118~ (2012)[DOI]