搜索结果: 1-15 共查到“农学 GnRH”相关记录28条 . 查询时间(0.075 秒)
旨在探讨GnRH主动免疫雌性SD大鼠的调控机制。24只雌性SD大鼠随机分为免疫组、卵巢切除组和空白对照组（n=8），免疫组于12周龄注射疫苗，4周后加免；卵巢切除组11周龄外科手术摘除卵巢；空白对照组不作任何处理。使用放射免疫分析法测定血清激素E2、P4、FSH和LH含量，荧光定量PCR分析各基因mRNA表达情况。结果显示，主动免疫显著降低血清E2、P4、FSH和LH含量，至56周处死时，E2和L...
旨在研究GnRH和GnIH基因和激素在鹅繁殖过程中的重要作用，本研究以产蛋性能差异显著的四川白鹅和溆浦鹅为试验材料，利用Real-time RCR方法检测产蛋前期、产蛋期和休产期两种鹅的下丘脑、垂体和卵巢组织中GnRH和GnIH mRNA的表达量；利用放射性免疫和酶联免疫吸附测定法测定血清中的GnRH和GnIH激素变化情况。结果表明：GnRH和GnIH基因在四川白鹅和溆浦鹅的下丘脑、垂体和卵巢组织...
GnRH主动免疫对公猪体内粪臭素代谢的影响
GnRH主动免疫 肝 粪臭素代谢 公猪膻味
2016/6/22
旨在探讨促性腺激素释放激素(Gonadotropin releasing hormone，GnRH)主动免疫对公猪体内粪臭素代谢的影响。36只公猪随机分为免疫组（10周龄时初免，18周龄加免）、手术去势组（1周龄外科阉割）及完整对照组（不作任何处理）。应用ELISA检测血清中睾酮、雌二醇及雄烯酮含量，采用高效液相色谱检测脂肪中粪臭素、雄烯酮和血液中雄烯酮含量，荧光定量PCR检测肝中粪臭素代谢相关基...
Serotonin, GnRH-A, and dopamine interaction in the control of in vivo luteinizing hormone release in Prussian carp (Carassius gibelio Bloch) at the time of gonad recrudescence
gonadotropin-releasing hormone analoque LH
2015/7/7
The effects of serotonin (5-HT), GnRH analogue (D-Ala6
LHRH, GnRH-A) and dopamine
antagonist – pimozide (PIM), on luteinizing hormone (LH) release in mature Prussian carp female (Carassius
gibel...
Effects of GnRH agonist immunization on vaginal electrical resistance, FSH, LH, and ovaries in prepubertal female sheep
gonadotropin-releasing hormone agonist gonadotropins vaginal electrical resistance follicle development ewe
2015/6/24
The study is aimed at the investigation of the effects of GnRH agonist (alarelin) immunization on the vaginal electrical resistance (VER) and secretion of FSH and LH in sheep. Forty-two prepubertal fe...
Effects of GnRH, PGF2α and oxytocin treatments on conception rate at the time of artificial insemination in lactating dairy cows
cow spontaneous oestrus GnRH PGF2伪 oxytocin pregnancy
2015/6/9
In several studies, hormones such as gonadotropin-releasing hormone (GnRH), prostaglandins and oxytocin were used to increase pregnancy rate by inducing ovulation and improving the sperm transport in ...
Superovulation following follicular synchronization with GnRH at random stages of the oestrous cycle in heifers
oestrous cycle GnRH superstimulation follicular puncture heifer
2015/6/9
The objective of this study was to develop a superovulatory program based on synchronization of follicular waves with GnRH which could be applied regardless of the stage of the oestrous cycle. 36 heif...
Superovulation following follicular synchronization with GnRH at random stages of the oestrous cycle in heifers: oocyte competence and in vitro embryo production
heifer oocyte GnRH oocyte competence
2015/6/8
The objective of this study was to develop a superovulatory program based on the synchronization of follicular waves with GnRH which could be applied regardless of the stage of the oestrous cycle. In ...
LH secretion and 17ββ-estradiol concentration in the blood plasma and hypothalamus of goldfish (Carassius auratus gibelio B.) and common carp (Cyprinus carpio L.) treated with fadrozole (aromatase inhibitor) and GnRH analogues
aromatase inhibitor LH estradiol goldfish carp ovulation
2015/6/4
Fadrozole – a non-steroidal aromatase inhibitor was applied to common carp and goldfish to examine its ability to potentiate the stimulatory action of GnRH analogues on LH secretion in vivo. The goal ...
Intrafollicular LH administration in dairy heifers treated with a GnRH agonist
intrafollicular treatment double channel system luteinising hormone deslorelin cattle
2015/4/17
The aim of this study was to evaluate the effect of intrafollicular treatment (IFT) with different doses of luteinising hormone. Experimental heifers were treated with a single deslorelin implant to d...
GnRH受体在雌性山羊肠系膜后神经节中的分布
促性腺激素释放激素受体 肠系膜后神经节 免疫组织化学SP染色 雌性山羊
2014/3/18
本试验旨在研究促性腺激素释放激素受体（GnRHR）在雌性山羊肠系膜后神经节（CMG）中的分布，以探讨CMG中存在的GnRHR在协调动物生殖活动中GnRH的内分泌调节与自主神经调节两种途径中的功能地位。试验采用免疫组织化学SP法，观察GnRHR在CMG中的分布特点。结果显示，在CMG中，神经元均为GnRHR免疫反应阳性细胞，其神经元细胞膜和细胞质呈棕黄色，GnRHR为强阳性。神经元突起呈黄色，GnR...
探讨GnRH主动免疫对SD雄鼠下丘脑GnRH合成及性腺反馈系统的影响。36只SD雄鼠随机分为免疫组、手术去势组及对照组，免疫组于12周龄时初免, 8周后加免。放免法测定血清抗体滴度、激素浓度及下丘脑正中隆起GnRH含量，实时荧光定量PCR分析下丘脑生殖相关基因mRNA的变化。结果显示，GnRH主动免疫后12只免疫鼠中11只血清GnRH抗体滴度显著升高，血清LH、FSH 及T浓度显著降低 (P<0....
GnRH受体在山羊腹腔肠系膜前神经节的分布及其意义
GnRH受体 腹腔肠系膜前神经节 免疫组织化学SP法 山羊
2013/11/29
本研究旨在观察促性腺激素释放激素受体(Gonadotropin-releasing hormone receptor，GnRHR)在山羊腹腔肠系膜前神经节的分布特点，以探讨GnRH是否可以影响腹腔肠系膜前神经节(Celiac-superior mesenteric ganglia，CSMG)的活动。取雄性和雌性成年山羊的腹腔肠系膜前神经节各5个，经免疫组织化学SP法染色后，观察GnRHR在肠系膜前...
为研究济宁青山羊生后发育阶段GnRH及GnRHR在下丘脑内的形态学分布和变化规律，采用链霉亲和素生物素过氧化物酶复合物（Strept Avidin BiotinPeroxidase Complex, SABC）免疫组织化学方法， 对0、2、4和6月龄雌性济宁青山羊下丘脑中GnRH及GnRHR的分布进行了同步研究。结果显示，GnRH和GnRHR免疫阳性细胞在下丘脑内广泛存在，主要分布于视前内侧...
Changes of Hypothalamic GnRH-I, POMC and NPY mRNA Expression and Serum IGF-I and Leptin Concentrations during Maturation of Shaoxing Ducks (Anas platyrhynchos)
Changes of Hypothalamic GnRH-I, POMC and NPY mRNA Expression and Serum IGF-I and Leptin Concentrations during Maturation of Shaoxing Ducks (Anas platyrhynchos)
2016/5/6
Sexual maturity in poultry is controlled by a complex neural circuit located in the basal forebrain, which integrates the central and peripheral signals to activate hypothalamic gonadotrophin-releasin...