Impaired reproduction in heat-stressed cattle: basic and applied aspects

Ahmad, 1995, Effect of persistent follicles on early embryonic losses in beef cows, Biol. Reprod., 52, 1129, 10.1095/biolreprod52.5.1129

Arechiga, 1998, Effects of timed insemination and supplemental beta-carotene on reproduction and milk yield of dairy cows under heat stress, J. Dairy Sci., 81, 390, 10.3168/jds.S0022-0302(98)75589-4

Arechiga, 1998, Effect of injection of beta-carotene or vitamin E and selenium on fertility of lactating dairy cows, Theriogenology, 50, 65, 10.1016/S0093-691X(98)00114-9

Armstrong, 1994, Heat stress interaction with shade and cooling, J. Dairy Sci., 77, 2044, 10.3168/jds.S0022-0302(94)77149-6

Armstrong, 1986, Seasonal differences in function of the hypothalamus–hypophysial–ovarian axis in weaned primiparous sows, J. Reprod. Fertil., 78, 11, 10.1530/jrf.0.0780011

Austin, 1999, Effect of duration of dominance the ovulatory follicle on onset of estrus and fertility in heifers, J. Anim. Sci., 77, 2219, 10.2527/1999.7782219x

Badinga, 1985, Effects of climatic and management factors on conception rate of dairy cattle in subtropical environment, J. Dairy Sci., 68, 78, 10.3168/jds.S0022-0302(85)80800-6

Badinga, 1993, Effect of environmental heat stress on follicular development and steroidogenesis in lactating Holstein cows, Theriogenology, 39, 797, 10.1016/0093-691X(93)90419-6

Badinga, 1994, Effect of season on follicular dynamics and plasma concentrations of oestradiol-17β, progesterone and luteinizing hormone in lactating Holstein cows, Theriogenology, 42, 1263, 10.1016/0093-691X(94)90246-F

Berman, 1992, Environmental modifications to improve production and fertility, 126

Bleach, E.C.L., Glencross, R.G., Knight, P.G., 1998. Association between ovulatory follicle development and pregnancy rates in spontaneously cycling dairy cows. Winter Meeting. Soc. for the Study of Fertility, Aachen, Abstract 30.

Breuel, 1990, First-service pregnancy rate in beef heifers as influenced by human chorionic gonadotropin administartion before and/or after breeding, Theriogenology, 34, 139, 10.1016/0093-691X(90)90585-H

Bucklin, 1991, Methods to relieve heat stress for dairy cows in hot, humid climates, Appl. Eng. Agric., 7, 241, 10.13031/2013.26218

Burke, 1996, Evaluation of timed insemination using a gonadotropin-releasing hormone agonist in lactating dairy cows, J. Dairy Sci., 79, 1385, 10.3168/jds.S0022-0302(96)76496-2

Cavestany, 1985, Effect of season and high environmental temperature on fertility of Holstein cattle, J. Dairy Sci., 68, 1471, 10.3168/jds.S0022-0302(85)80985-1

De la Sota, 1998, Evaluation of timed insemination during summer heat stress in lactating dairy cattle, Theriogenology, 49, 761, 10.1016/S0093-691X(98)00025-9

Ealy, 1993, Developmental changes in embryonic resistance to adverse effects of maternal heat stress in cows, J. Dairy Sci., 76, 2899, 10.3168/jds.S0022-0302(93)77629-8

Ealy, 1994, Effectiveness of short-term cooling and vitamin E for alleviation of infertility induced by heat stress in dairy cows, J. Dairy Sci., 77, 3601, 10.3168/jds.S0022-0302(94)77304-5

Edwards, 1997, Differential responses of bovine oocytes and preimplantation embryos to heat shock, Mol. Reprod. Dev., 46, 138, 10.1002/(SICI)1098-2795(199702)46:2<138::AID-MRD4>3.0.CO;2-R

Gilad, 1993, Effect of heat stress on tonic and GnRH-induced gonadotrophin secretion in relation to concentration of oestradiol in plasma of cyclic cows, J. Reprod. Fertil., 99, 315, 10.1530/jrf.0.0990315

Guzeloglu, A., 1998. Long term follicular dynamics and biochemical characteristics of dominant follicles in dairy cows subjected to heat stress. MSc Thesis, Univ. Florida, Gainesville, USA.

Gwazdauskas, 1981, Hormonal pattern during heat stress following tham salt induced luteal regression in heifers, Theriogenology, 16, 271, 10.1016/0093-691X(81)90012-1

Hansen, 1997, Effects of environment of bovine reproduction, 403

Hansen, 1992, Methods for reducing effects of heat stress on pregnancy, 16

Howell, 1994, Corpus luteum growth and function in lactating Holstein cows during spring and summer, J. Dairy Sci., 77, 735, 10.3168/jds.S0022-0302(94)77007-7

Huber, 1996, Amelioration of heat stress in dairy cattle, 211

Jonsson, 1997, Relationships among calving season, heat load, energy balance and postpartum ovulation of dairy cows in a subtropical environment, Anim. Reprod. Sci., 47, 315, 10.1016/S0378-4320(97)00014-6

Lublin, 1996, Lactation and pregnancy effects on blood flow to mammary and reproductive systems in HS rabbits, Comp. Biochem. Physiol., 115A, 277, 10.1016/S0300-9629(96)00060-6

Madan, 1973, Environmental heat effects on bovine luteinizing hormone, J. Dairy Sci., 56, 1420, 10.3168/jds.S0022-0302(73)85376-7

Mihm, 1994, Association between the duration of dominance of the ovulatory follicle and pregnancy rate in beef heifers, J. Reprod. Fertil., 102, 123, 10.1530/jrf.0.1020123

Palta, 1997, Peripheral inhibin levels in relation to climatic variations and stage of estrous cycle in buffalo (Bubalus bubalis), Theriogenology, 47, 989, 10.1016/S0093-691X(97)00055-1

Peters, 1994, Luteinizing hormone has a role in development of fully functional corpora lutea (CL) but is not required to maintain CL function in heifers, Biol. Reprod., 51, 1248, 10.1095/biolreprod51.6.1248

Pursley, 1998, Effect of time of artificial insemination on pregnancy rates, calving rates, pregnancy loss and gender ratio after synchronization of ovulation in lactating dairy cows, J. Dairy Sci., 81, 2139, 10.3168/jds.S0022-0302(98)75790-X

Putney, 1988, Embryonic development in superovulated dairy cattle exposed to elevated ambient temperatures between days 1 to 7 post insemination, Theriogenology, 30, 195, 10.1016/0093-691X(88)90169-0

Robinson, 1989, Effect of treatment with progesterone on pregnancy rate and plasma concentrations of progesterone in Holstein cows, J. Dairy Sci., 72, 202, 10.3168/jds.S0022-0302(89)79098-6

Rocha, 1998, High environmental temperature and humidity decrease oocyte quality in Bos taurus but not in Bos indicus cows, Theriogenology, 49, 657, 10.1016/S0093-691X(98)00016-8

Roman-Ponce, 1981, Hormonal interrelationships and physiological responses of lactating dairy cows to shade management system in a tropical environment, Theriogenology, 16, 139, 10.1016/0093-691X(81)90097-2

Rosenberg, 1982, Effect of climatic conditions on peripheral concentrations of LH, progesterone and estradiol-17β in high milk-yielding cows, J. Reprod. Fertil., 66, 139, 10.1530/jrf.0.0660139

Roth, Z., 1998. Immediate and delayed effect of heat stress on ovarian follicular development and function in dairy cows. MSc Thesis, Fac. Agric., Hebrew Univ., Rehovot, Israel, in Hebrew, with English abstract.

Roth, Z., Meidan, R., Shaham-Albalancy, A., Wolfenson, D., 1997. Immediate and delayed effects of heat stress on follicular development and function in lactating cows. Ann. Meeting, Am. Soc. Anim. Sci., Nashville, Abstract 367.

Roth, Z., Arav, A., Bor, A., Zeron, Y., Ocheretny, A., Wolfenson, D., 1999. Enhanced removal of impaired follicles improves the quality of oocytes collected in the autumn from summer heat-stressed cows. Ann. Meeting, Soc. for the Study of Fertility, Aberystwyth, Abstract 78.

Ryan, 1991, Frequency of twin births among Holstein–Friesian cows in a warm dry climate, Theriogenology, 36, 1, 10.1016/0093-691X(91)90428-G

Savio, 1993, Regulation of dominant follicle turnover during the oestrous cycle in cows, J. Reprod. Fertil., 97, 197, 10.1530/jrf.0.0970197

Schmitt, 1996, Differential response of the luteal phase and fertility in cattle following ovulation of the first-wave follicle with human chorionic gonadotropin or an agonist of gonadotropin-releasing hormone, J. Anim. Sci., 74, 1074, 10.2527/1996.7451074x

Shaham-Albalancy, 1996, The effect of plasma progesterone on steroidogenic capacity of granulosa and theca cells from dominant follicles, Biol. Reprod., 45, 59

Shaham-Albalancy, A., Rosenberg, M., Folman, Y., Nyska, A., Wolfenson, D., 1996b. The effect of progesterone concentration during the luteal phase of the estrous cycle on uterine endometrial morphology and function during the subsequent estrous cycle of dairy cows. The 13th Int. Cong. Anim. Reprod., 18.

Sianangama, 1992, Effect of human chorionic gonadotropin administered at specific times following breeding on milk progesterone and pregnancy in cows, Theriogenology, 38, 85, 10.1016/0093-691X(92)90220-L

Sonego, H., 1995. Steroidogenic capacity of dominant follicles and corpora lutea obtained from first or second follicular waves in dairy cows in summer and winter. MSc Thesis, Fac. Agric. Hebrew Univ. Rehovot, Israel, in Hebrew, with English abstract.

Thatcher, 1986, Effects of climate on bovine reproduction, 301

Thatcher, 1992, Systems to alter embryo survival, 164

Trout, 1998, Characteristics of the estrous cycle and antioxidant status of lactating Holstein cows exposed to heat stress, J. Dairy Sci., 81, 1244, 10.3168/jds.S0022-0302(98)75685-1

Ullah, 1996, Effect of gonadotropin-releasing hormone at estrus on subsequent luteal function and fertility in lactating Holsteins during heat stress, J. Dairy Sci., 79, 1950, 10.3168/jds.S0022-0302(96)76565-7

Wilson, S.J., Marion, R.S., Bao, B., Bilby, C.R., Lucy, M.C., 1997. Expression of messenger RNA encoding cytochrome P450 aromatase, Cytochrome P450 side chain cleavage, 17α-hydroxylase, follicle stimulating hormone receptor, and steroid acute regulatory protein, in second wave dominant follicles of heat-stressed and thermoneutral heifers. Annual Meeting Soc. for the Study of Reproduction, Portland, Abstract 241.

Wilson, 1998, Effects of controlled heat stress on ovarian function of dairy cattle: 1. Lactating cows, J. Dairy Sci., 81, 2124, 10.3168/jds.S0022-0302(98)75788-1

Wilson, 1998, Effects of controlled heat stress on ovarian function of dairy cattle: 2. Heifers, J. Dairy Sci., 81, 2132, 10.3168/jds.S0022-0302(98)75789-3

Wise, 1988, Hormonal alterations in the lactating dairy cow in response to thermal stress, J. Dairy Sci., 71, 2480, 10.3168/jds.S0022-0302(88)79834-3

Wise, 1988, Fertility and hormonal responses to temporary relief of heat stress in lactating dairy cows, Theriogenology, 29, 1027, 10.1016/S0093-691X(88)80026-8

Wolfenson, 1988, Hyperthermia and body energy store effects on estrous behavior, conception rate, and corpus luteum function in dairy cows, J. Dairy Sci., 71, 3497, 10.3168/jds.S0022-0302(88)79956-7

Wolfenson, 1994, Conception rate of cows supplemented with progesterone post-insemination in the summer, J. Anim. Sci., 72, 280

Wolfenson, 1993, Effects of season, incubation temperature and cell age on progesterone and prostaglandin F2a production in bovine luteal cells, Anim. Reprod. Sci., 32, 27, 10.1016/0378-4320(93)90055-V

Wolfenson, 1995, Effect of heat stress on follicular development during the estrous cycle in lactating dairy cattle, Biol. Reprod., 52, 1106, 10.1095/biolreprod52.5.1106

Wolfenson, 1997, Seasonal and acute heat stress effects on steroid production by dominant follicles in cows, Anim. Reprod. Sci., 47, 9, 10.1016/S0378-4320(96)01638-7

Younas, 1993, Estrous and endocrine responses of lactating Holsteins to forced ventilation during summer, J. Dairy Sci., 76, 430, 10.3168/jds.S0022-0302(93)77363-4

Zavi, 1994, Embryonic mortality in cattle, 99