Pdf the lengthweight relationships lwr of commercially important indian major carp labeo rohita ham. This study was designed to investigate the growth performance, lengthweight relationship lwr and condition factor kvalue of reciprocal backcross hybrid catfish rcbc, pangasianodon gigas femalexf1 hybrid male catfish and backcross hybrid catfish bc, p. Length weight relationship and condition factor of labeo. Length weight relationship and condition factor in different age. Studies on lengthweight relationship have widely attracted the attention of fishery biologists. The relation between length and weight is expressed by hypothetical law w alb and the value of b fish is closely related to 3 as like an ideal fish.
Determination of age of carps, labeo rohita by scale method. Moreover, this study also compared the above mentioned species of catfish were compared. This expression w a can be transformed to the logarithm equation in respect of length and weight relationship. Synopsis of biological data on rohu labeo rohita hamilton, 1822. The length weight relationship of the same species may be different in the population because of feeding, reproduction activities and fishing. Pdf the length weight relationship of juvenile labeo. The relationship between length and weight of labeo rohita from fish catch was calculated by establishing correlation and regression between. It is a fast growing species and attains about 3545 cm total length and 700800 g in one year under normal culture conditions. Positive correlation between total length and weight of fish, standard length and total length was observed. In the present study the length weight relationship of labeorohita increase with the weight and thereby shows the weight of the fish is a function of length. Analysis of lengthweight relationship and condition. The total length and weight of fish samples were measured in centimetre and gram, respectively. The weightlength relationship of labeo rohita hamilton.
In the present studies, lengthweight relationship of labeo dero family. Abstract the investigation is the lengthweight and condition factor of two hundred and fifty five adult labeo rohita fishes in govindgarh lake, rewa were investigated. Condition factor and lengthweight relationship of pond. Lengthweight relationship and relative condition factor. Comparative study was conducted to examine growth rate, biomass production and proximate composition of six different azolla species. This file contains a global overview of the aquaculture species labeo rohita. Study of external morphometric variants and lengthweight. Relationship between log total length tl cms and log total weight tw gms of labeo dero hamilton collected from nangal wetland. The length weight relationship lwr and condition factor k for two commercially important carps labeo rohita and hypophthalmichthys molitrix was carried out in two fish ponds in and around. It is therefore necessary to know the length weight relationships of fish which are captured in a given. Pdf the lengthweight relationship lwr and condition factor k for two commercially important carps labeo rohita and. The samples collected for labeo rohita were divided into four length groups i.
The value of regression coefficient for the lengthbody weight relationship was calculated to be 2. In the present study on lengthweight relationship and exponent values for the carps, catla catla and labeo rohita from udaisagar reservoir, udaipur rajasthan have been computed. Essential amino acids eaa of different azolla species in linear growth phase also analysed. Studies on the biology of some important major carps. Issn 23472677 length weight relationship and condition. Department of zoology, aligarh muslim university, 185 pp. Lengthweight relationship and condition factor in barilius sacra of river torsa in west bengal. Juveniles of rohu labeo rohita were obtained from nursery ponds of freshwater fish farm of powarkheda, cife. Culture of azolla and its efficacy in diet of labeo rohita. The length weight relationship, total lengthstandard length relationship and fish lengthaverage total scale length relationship of labeo rohita were studied during the year 202014 by correlation and regression method. Labeo rohita is commercially important freshwater fish, commonly known as rohu. However, on rajasthan waters such reservoirs are comparatively meagre. Pdf lengthweight relationship and relative condition. Highly significant correlations p length weight relationship of the same species may be different in the population because of feeding, reproduction activities and fishing.
Pdf lengthweight relationship and condition factor of. Lengthweight relationship about 500 specimens, of labeo rohita, were collected during the fishing year 20082009 from udaisagar reservoir for the lengthweight relationship. The length weight relationships lwr of commercially important indian major carp labeo rohita ham. Length weight relationship of labeo rohita hamiltonbuchanan and labeo gonius hamiltonbuchanan in sone beel, the biggest wetland of assam, india. Relationship between total length, standard length and. Discussion the growth pattern of the fish is measured by the value of exponent b in le cren lengthweight equation and is a measure of robustness of the fish. Length weight relationship of labeo rohita and labeo gonius hamiltonbuchanan from sone beel, the biggest wetland of assam, india. One hundred and forty seven specimens 15 to 50 mm fl had a full length body weight. The samples collected for labeo rohita were divided into four. The lengthweight relationship of the same species may be different in the population because of feeding, reproduction activities and fishing. A total of 240 samples of labeo rohita collected from the twelve 12 different ponds treated with 3 concentrations of n3 fatty acid 0.
A feeding trial was conducted in the cemented tanks 8. Length weight relationship and condition factor of labeo rohita in. Lengthweight relationships of the indian major carp, labeo rohita. In the present study the length weight relationship of labeo rohita increase with the weight and thereby shows the weight of the fish is a function of length. Information of the length weight relationships of labeo rohita and labeo gonius is scarce hence this study conducted for the purpose of establishing the length. Lengthweight relationship and relative condition factor of carps labeo bata and labeo rohita from kulia beel wetland of nadia district of west bengal august 2017 journal of entomology and. Calla calla labeo rohita clrthina mrigala 25 60 15 fertilization of t1, t2, t3 and t4 and supplementation with artificial feed tf t5 was done al the. Estimation of length weight relationship and condition factor of labeo rohita bangla nane. Length weight relationship and relative condition factor of carps labeo bata and labeo rohita from kulia beel wetland of nadia district of west bengal august 2017 journal of entomology and. The length weight relationship of males, females and combined pooled data of piiucunrhus humrur and pomadusys maculatus was found out using the formula w a.
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