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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >FECUNDITY OF LABEO ROHITA (TELEOSTEI: CYPRINIDAE) REARED IN EARTHEN POND IN LAHORE
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FECUNDITY OF LABEO ROHITA (TELEOSTEI: CYPRINIDAE) REARED IN EARTHEN POND IN LAHORE

机译：拉合尔Earthen Pond的LABEO ROHITA（TELEOSTEI：CYPRINIDAE）的繁殖力

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In this study, ripe and mature females Labeo rohita (Hamilton) were sampled from Punjab University Research Fish Farms Lahore, in June and July 2009. Mean body weight and mean total length of fish was 559.20±175.31g and 35.04±3.27cm respectively. The mean ovary weight was 88.76±30.71grams. The ovaries were extracted, dried and weighed individually. Mean number of eggs/g ovary and number of eggs/g fish were 891.50±126.32 and 142.47±37.22 respectively. The mean absolute fecundity was 80290±32955 and mean relative fecundity was 142466±37226. These values were higher in June than in July sample. Two ovaries from fishes of same body weight (460g) contained different number of eggs (78876 and 75850). The highest value of gonadosomatic index (22.68) was recorded in June, indicating breeding and spawning period of L. rohita. Fish weight was significantly correlated to total length (r = 0.780) and ovary weight (r = 0.710). The relationship between fecundity and fish total length, fish weight, ovary length and ovary weight showed positive linear correlation and the correlation coefficient values for these relationships were 0.543; 0.698; 0.536 and 0.914 respectively. The fecundity of L. rohita of present stock was significantly correlated to fish total length and body weight; ovary length and ovary weight. However, the ovary weight is the most reliable and better index of fecundity than total length and weight of the fish.
机译：在这项研究中，于2009年6月和2009年7月从旁遮普大学研究鱼场拉合尔抽取了成熟雌性Labeo rohita（汉密尔顿）。平均体重和平均鱼长分别为559.20±175.31g和35.04±3.27cm。平均卵巢重量为88.76±30.71克。提取卵巢，干燥并分别称重。平均卵数/克卵巢和卵数/克鱼分别为891.50±126.32和142.47±37.22。平均绝对生殖力为80290±32955，平均相对生殖力为142466±37226。 6月的这些值高于7月的样本。体重相同（460g）的鱼的两个卵巢含有不同数量的卵（78876和75850）。六月的性腺体激素指数最高（22.68），表明L. rohita的繁殖和产卵期。鱼的重量与总长度（r = 0.780）和卵巢重量（r = 0.710）显着相关。繁殖力与鱼的总长，鱼的体重，子房的长度和子房的重量之间的关系呈线性正相关，这些关系的相关系数值为0.543。 0.698;分别为0.536和0.914。目前种群的罗氏乳杆菌的繁殖力与鱼的总长和体重显着相关。子房长和子房重。但是，卵巢重量比鱼类的总长和总重量是最可靠的繁殖力指标。

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