نتایج جستجو برای: estrous synchronization
تعداد نتایج: 43172 فیلتر نتایج به سال:
Traumatic and stressful events during childhood are associated with the development of eating disorders. We conducted an animal study to test if association stress in childhood affects ingestive behavior later in life by using female rats that have an adjusted estrous cycle. First, electrical impedance of the vagina was conducted to test estrous cycle adjustment. Second, the effects of 6 h per ...
Uterine contractions are generated by myometrial smooth muscle cells (SMCs) that comprise most of the myometrial layer of the uterine wall. Aberrant uterine motility (i.e., hypo- or hyper-contractility or asynchronous contractions) has been implicated in the pathogenesis of infertility due to the failure of implantation, endometriosis and abnormal estrous cycles. The mechanism whereby the non-p...
We evaluated the changes in estrous cycle of female rats fed either high carbohydrate or high protein diets for 42 days relatively to commercially available rodent pellets. Animals fed high carbohydrate diet showed a lengthened estrus cycle while those fed with a high protein diet could not continue a healthy estrous cycle. Animals received a protein rich diet showed a lengthened estrus cycle w...
Methomyl is an oxime carbamate pesticide that is widely used in the Philippines. This insecticide is known to be an endocrine disrupting chemical and a potent genotoxic in mammalian cells. However, limited studies were conducted specifically on its direct effects on estrous cycle and its teratogenic effect. This study aimed to (a) assess the effect of methomyl on the body weight and on the estr...
The objective of the present study was to evaluate estrus synchronization and conception rate after progesterone releasing intravaginal device (PRID) treatment from the early luteal phase in the presence or absence of estradiol benzoate (EB) in heifers. Heifers (n=11) were assigned randomly to two treatments; insertion of a PRID containing 1.55 g progesterone with a capsule attached including 1...
This paper is concerned with the problem of synchronization for complex dynamic networks with state and coupling time-delays. Therefore, larger class and more complicated complex dynamic networks can be considered for the synchronization problem. Based on the Lyapunov-Krasovskii functional, a delay-independent criterion is obtained and formulated in the form of linear matrix inequalities (LMIs)...
Timed artificial insemination (TAI) is a very important tool for reproductive programs in small ruminants, providing synchronized inseminations and more efficient use of superior males. The objectives this study were to investigate the viability different breeding protocols under sub-optimal conditions out season, compare outcome TAI sheep with two semen extenders. Ewes (n=575) subjected estrou...
Abstract Korean black goat (Capra hircus coreanae) populations are dwindling and facing genetic erosion due to artificial insemination. Here, we introduced an estrus synchronization method for goats enable crossbreeding with non-native breeds on small farms investigated the application of insemination in goats. Semen was obtained using electro-ejaculation preserved a conventional simple freezin...
Objective: To evaluate the application of one or two doses prostaglandin F2?(PGF2?), a progestogen on different days estrous cycle and theusage eCG in estrus synchronization fertility Zebu × Brown Swiss cows.Design / methodology approach: The study was based three protocols. firstconsisted treatments: PGI) 26 cows were injected with single 25 mg dose ofPGF2? 10 PGF2? at 14-day interval. Protoco...
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