Age and pasture effects on vernal transition in mares

Theriogenology - Tập 47 - Trang 1009-1018 - 1997
E.M. Carnevale1, M.J. Hermenet1, O.J. Ginther1
1Animal Health and Biomedical Sciences 1655 Linden Drive University of Wisconsin-Madison Madison, WI 53706, USA

Tài liệu tham khảo

Adashi, 1985, Insulin-like growth factors as intraovarian regulators of granulosa cell growth and function, Endocr Rev, 6, 400, 10.1210/edrv-6-3-400 Allen, 1978, Control of oestrus and ovulation in the mare, 453 Asa, 1982, Glucocorticoid suppression of oestrus, follicles, LH and ovulation in the mare, J Reprod Fertil, 32, 247 Berger, 1981, Chemical triggering of reproduction in Microtus montanus, Science, 214, 69, 10.1126/science.7025210 Carnevale, 1993, Aging effects on follicular activity and concentrations of FSH, LH, and progesterone in mares, Animal Reprod Sci, 31, 287, 10.1016/0378-4320(93)90013-H Carnevale, 1994, Follicular activity and concentrations of FSH and LH associated with senescence in mares, Animal Reprod Sci, 35, 231, 10.1016/0378-4320(94)90039-6 Colborn, 1991, Responses of cortisol and prolactin to sexual excitement and stress in stallions and geldings, J Anim Sci, 69, 2556, 10.2527/1991.6962556x DePew, 1994, Changes in concentrations of hormones, metabolites, and amino acids in plasma of adult horses relative to overnight feed deprivation followed by a pellet-hay meal fed at noon, J Anim Sci, 72, 1530, 10.2527/1994.7261530x Eisenhauer, 1995, Growth hormone suppression of apoptosis in preovulatory rat follicles and partial neutralization by insulin-like growth factor binding protein, Biol Reprod, 53, 13, 10.1095/biolreprod53.1.13 Ginther, 1974, Occurrence of anestrus, estrus, diestrus, and ovulation over a 12-month period in mares, Am J Vet Res, 35, 1173 Ginther, 1992 Ginther, 1985, Effects of 6-MBOA on reproductive function in ponies, mice, rats and mink, Theriogenology, 24, 587, 10.1016/0093-691X(85)90064-0 Ginther, 1993, Delay in emergence of the ovulatory wave in old mares, J Equine Vet Sci, 13, 75, 10.1016/S0737-0806(06)81085-3 Guthrie, 1984, Effect of gonadotropin-releasing hormone, stage of sexual maturation and 6-methoxybenzoxaoline on plasma gonadotropins, ovarian development and uterine weight in prepuberal gilts, Theriogenology, 22, 683, 10.1016/0093-691X(84)90498-9 Henneke, 1984, Body condition during pregnancy and lactation and reproductive efficiency of mares, Theriogenology, 21, 897, 10.1016/0093-691X(84)90383-2 Johnson, 1986, Serum concentrations of prolactin, thyroxine and triiodothyronine relative to season and the estrous cycle in the mare, J Anim Sci, 62, 1012, 10.2527/jas1986.6241012x Kincaid, 1995, Prolactin administration to seasonally anestrous mares: Effects on estrus and ovulation, glucose and fat metabolism, and hair shedding, J Anim Sci, 73, 215 Kubiak, 1987, The influence of energy intake and percentage of body fat on the reproductive performance of nonpregnant mares, Theriogenology, 28, 587, 10.1016/0093-691X(87)90275-5 Morris, 1987, Follicular activity in transitional mares as affected by body condition and dietary energy, 93 Nequin, 1993, Prolactin may play a role in stimulating the equine ovary during the spring reproductive transition, J Equine Vet Sci, 13, 631, 10.1016/S0737-0806(07)80391-1 Sticker, 1995, Dietary protein and(or) energy restriction in mares: Plasma growth hormone, IGF-I, prolactin, cortisol, and thyroid hormone responses to feeding, glucose, and epinephrine, J Anim Sci, 73, 1424, 10.2527/1995.7351424x U.S. Research Medical Research and Development Command, 1994 Vanderwall, 1990, Age-related subfertility in the mare, 85 van Neikerk, 1972, Nutrition and ovarian activity of mares early in the breeding season, J South Afr Vet Assoc, 43, 351