منابع مشابه
Reproductive parameters of common carp (Cyprinus carpio L) spawners during natural season and out-of-season spawning.
Common carp spawning characteristics were compared between season and out-of-season periods. There were no differences in the percentage of ovulation, spermatozoa motility and embryo survival to the eyed-egg-stage between the spawning periods. Fish spawned during the season produced oocytes of higher total weight than those spawned out-of-season. On the day exogenous feeding began, larvae obtai...
متن کاملefficacy of gnrh or cidr on out of season reproductive performance of ewe
abstract: an investigation was under taken to evaluate the out of season reproduction performance of ewe. a flock consisting 119 ewes was synchronized via implementation cidr over a period of 12 days, following by injection of pmsg (400 iu). the ewes inseminated and divided to three experimental groups. group1: injection of gnrh (5ml) at day 12 post insemination, group 2: received cidr for 5 to...
متن کاملOut-of-season breeding of milk goats--the effect of light treatment, melatonin and breed.
The purpose of this study was to evaluate the effectivity of melatonin in addition to light treatment (exposure to 2 hours of light during the night = a long-day photoperiod) to modify the breeding season of Saanen and cross-bred milk goats and to compare the difference between the breeds. Twenty-two Saanen and 22 cross-bred does were randomly divided into 3 treatment groups. Group 1 (controls)...
متن کاملTheriogenology Causes for Decreased Fertility in Out-of-season Mated Ewes
The interval from onset of estrus to preovulatory luteinizing hormone (LH) release, conception and fertilization rates, and number of accessory spermatozoa per ovum at 48 hr postmating in untreated cyclic ewes and fn progestogen-pregnant mare serum gonadotropin (PMSG) treated, anestrous ewes were compared in efforts to identify sources of lowered fertility for matings induced in anestrous ewes ...
متن کاملEfficacy of CIDR or FGA Sponges with hCG Treatments on the Conception Rate and Prolificacyin Lori Ewes Out of the Breeding Season
Two experiments were performed to determine the effectiveness of different progestogens contained in intravaginal devices, different doses of eCG and subsequent hCG treatment on the reproductive performance of estrus-induced mature Lori ewes. In the first experiment, 88 ewes were allocated into two groups, and were treated with either fluorogestone acetate (FGA) sponges or Controlled Internal D...
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ژورنال
عنوان ژورنال: Iowa Journal of Cultural Studies
سال: 1996
ISSN: 2168-569X,2168-5738
DOI: 10.17077/2168-569x.1401