寄生虫
发表于 2025-3-26 22:32:42
stice. Photoperiod is a strong entraining agent of reproductive activity, as demonstrated either by the reversal of annual photoperiodic variations, by rhythms reproducing normal photoperiodic variations within a period of less than 1 year, or by the alternation of long and short days every 3 or 4 m
calamity
发表于 2025-3-27 03:10:25
https://doi.org/10.1007/978-3-319-16778-7dvance the breeding season in ewes compared to ewes implanted with melatonin or control ewes. The breeding season was advanced by daily oral administration or by use of implants of metatonin. In a second experiment, the efficacy of melatonin implants to advance the breeding season in three breeds wa
协议
发表于 2025-3-27 06:07:28
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construct
发表于 2025-3-27 13:10:00
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A简洁的
发表于 2025-3-27 15:09:12
World View Instead of Religion?, growth. In some breeds the restoration of this inadequacy by appropriate therapy with either purified LH or GnRH will promote ovulation. However, in “deeply” anestrous breeds it is necessary to use a combination of FSH and LH. Such differences indicate that the endocrinology of seasonal anestrus is
礼节
发表于 2025-3-27 18:26:05
Religious Experience and Self-Psychologys special problems in the control of anoestrus in Thoroughbred stud management. Seasonal anoestrus can now be successfully curtailed by combined therapy with artificial lighting, orally-active progestagens and prostaglandin analogues. Recent experiments indicate that low dose, slow release implants
材料等
发表于 2025-3-28 00:14:14
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infarct
发表于 2025-3-28 05:13:53
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痛恨
发表于 2025-3-28 07:52:37
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饮料
发表于 2025-3-28 12:38:33
Historical and Ideological Challenges,H and FSH occurs. The extent to which this escape from the inhibitory effects of suckling and lactation occurs varies between sows and is related to both the response of the endocrine system to weaning and to the weaning to oestrus interval. The length of lactation also affects the endocrine status