文章摘要
王德寿.大鳍鳠脑垂体和血清生长激素水平的季节变化[J].水产学报,1999,23(1):
大鳍鳠脑垂体和血清生长激素水平的季节变化
SEASONAL CHANGES OF THE PITUITARY AND SERUM BASAL GROWTH HORMONE LEVELS OF MYSTUS MACROPTERUS
投稿时间:2014-04-18  修订日期:2014-04-18
DOI:
中文关键词: 大鳍鳠 脑垂体 血清 生长激素 季节变化
英文关键词: Mystus macropterus , pitui tary , serum , grow th hormone , seasonal changes
基金项目:
作者单位地址
王德寿 中山大学水生经济动物研究所 中山大学水生经济动物研究所
摘要点击次数: 1285
全文下载次数: 1161
中文摘要:
      根据大鳍鳠脑垂体匀浆和血清样品的稀释曲线与鲤生长激素(cGH)标准曲线的平行性,采用鲤生长激素的标准品和抗血清(RAG)测定了周年中几个不同时期大鳍鳠脑垂体和血清样品的生长激素(GH)含量,发现脑垂体和血清中的GH含量均表现出明显的季节变化。脑垂体的GH含量分别在3月份和8月份出现两个峰。4~7月的繁殖期和11~1月的越冬期间,脑垂体的GH含量很低,而且波动不大。受水温和光周期的影响,大鳍鳠血清GH水平表现为从冬季(11~1月)到春季(2~4月)逐渐上升,夏季急剧升高,到夏末(7月底)达到最高,一直持续到秋季。大鳍鳠血清GH含量的变化与生殖周期密切相关,最低的GH含量出现在性腺静止期,其次为性腺发育期,再次为性腺成熟期,在产卵期急剧升高,最高为性腺退化期。
英文摘要:
      Dose-response inhibition curves for serial dilutions of sera and pituitary homogenates f rom the bag rid catf ish M .macropterus (Bleeker)parallel that for the common carp grow th ho rmone (cGH), so the radioimmunoassay for cGH w as used to assay the blood and pituitary GH levels of the catfish .Seasonal changes w ere found in both pituitary GH content s and serum GH levels .Seasonal changes in pituitary GH contents w ere marked by tw o distinct peaks , one w as in March and the other was in August , just anterio r to and posterior to the gonadot ropin (GTH)peak(April to July)of the pi tuitary .From April to July , the reproductive period of the fish , and f rom November to February , the overw inter period , the pituitary GH content s w ere low and w ith mino r variat ions .Influenced by w ater temperature and pho toperiod , the lowest level of serum GH w as observed in w inter and a prog ressive increase w as found in spring and summer . But a sig nificant increase w as found at the end of summer (July), and remained a high level in autumn .Seaso nal changes in serum GH levels were also co rrelated to reproductive cycle .The lowest serum GH level w as observed in the resting period , elevated g radually with the recrudescence of the gonads , increased sig nificant ly at the spaw ning period , and got the highest v alue in the sexual reg ressed period .These results were in accordance w ith those obtained in common carp and g oldf ish .
HTML   查看全文   下载PDF阅读器
关闭

手机扫一扫看