Length Weight Relationship and Condition Factor of Cultured Rainbow Trout, Oncorhynchus mykiss (Walabum, 1792)


  • University of Kashmir, DST Sponsored Fish Nutrition Laboratory, Department of Zoology, Srinagar, 190006, India


A Length Weight Relationship (LWR) and condition factor of cultured rainbow trout Oncorhynchus mykiss was studied. A total of 144 specimens were used obtained from National fish farm Laribal, Dachigam during January 2017 to December 2018. The coefficient ‘b’ value of LWR showed negative allometric (b<3) growth throughout the year except in the months of October and December, where the positive allometric growth pattern was reported (b>3). In order to generate more precise information, a trend line graph was draw to compare condition of fish in different months, which indicated declining growth pattern condition. The condition factor showed an overt variation with highest value was reported during the breeding season. The result obtained in this study will be useful for the improvement of production and quality of trout under cultured condition.


Condition Factor, Dachigam, Length Weight Relationship, Oncorhynchus mykiss

Subject Discipline

Nutrition; histology, physiology, biochemical

Full Text:


Cada GF, Loar JM, Sale MJ. Evidence of food limitation of rainbow and brown trout in southern appalachian softâ€water streams, Trans Am Fish Soc. 1987; 116:692–702. https://doi.org/10.1577/1548-8659(1987)116<692:EOFLOR>2.0.CO;2

Carlander KD. Handbook of freshwater fishery biology. Dubuque, Iowa: William C. Brown; 1950.

FAO. The state of world fisheries and aquaculture. Contributing to food security and nutrition for all. 2012. p. 24.

Figueiredo-Garuti ML, Garuti V. Total condition factor and somatic condition factor for females astyanax bimaculatus (Pisces, Characidae) coming from the Northwest Region of Sao Paulo, Parana River Basin. IX Brazilian Meeting of Ichthyology. 1991. p. 62.

Froese R. Cube law, condition factor and Weight Length Relationship: History, meta-analysis and recommendations. J Appl Ichthyol. 2006; 22:241–53. https://doi.org/10.1111/j.14390426.2006.00805.x

Fulton TW. The rate of growth of fishes. Twenty Second Annual Report Part III. Fish. Board Scot. Edinb. 1904. p. 141–241.

Kleanthids PK, Sinis AI, Stergiou KI. Length Weight Relationships of freshwater fishes in Greece. Naga, ICLARM Q. 1999; 22:37–41.

LeCren ED. The Length Weight Relationship and seasonal cycle in gonad weight and condition in the Perch (Perca fluviatilis). J Anim Ecol. 1951; 20:201–19. https://doi.org/10.2307/1540

Luther G. Some observations on the biology of Liza macrolepis (Smith) and Mugil cephalus Linnaeus (Mugilidae) with notes on the fishery of grey mullets near Mandapam. Indian J Fish. 1968; 10:642–66.

Manager F. Laribal Trout Fish Farm Data Book. 2017.

Mir JI, Sarkar UK, Dwivedi AK,Gusain OP, Pal A and Jena JK. Pattern of intra basin variation in condition factor, relative condition factor and form factor of an Indian Major Carp, Labeo Rohita (Hamilton-Buchanan, 1822) in the Ganges Basin, India. Europ J Biol Sci. 2012; 4:126–35.

Petraiks G, Stergiou KI. Weight Length Relationships for 33 fish species in Greek waters. Fish Res. 1995; 21:465–9. https://doi.org/10.1016/0165-7836(94)00294-7

Pitcher TJ, Hart PJ. Fisheries ecology. London: Chapman and Hall; 1982

Rabe FW. Seasonal age distributions and maturity stage in a naturalized rainbow trout (Oncorhynchus mykiss Walbaum) population in southern Chile reveal an ad-fluvial life history. Northwest Sci. 1967; 41:12–22.

Sarkar UK, Deepak PK, Negi RS. Length Weight Relationship of clown knife fish Chitala chitala (Hamilton 1822) from the Ganga Basin, India. J Appl Ichthyol. 2008; 25:232–3. https://doi.org/10.1111/j.1439-0426.2008.01206.x

Seshappa G. Recent studies on age determination of Indian fishes using scale, otolith and other hard parts. Indian J Fish. 1999; 46:1–11.

Shamsan EF, Ansari ZA. Study of age and growth of Indian sand whiting, Sillago Sihama (Forsskal) from Zuari Estuary, Goa. Indian J Mar Sci. 2010; 39:1–5.

Sharma RK, Bhat RA. Length Weight Relationship, condition factor of rainbow trout (Oncorhynchus mykiss) from Kashmir waters. Annals of Biological Research. 2015; 6:25–9.

Wootton RJ. Ecology of teleost fishes. London: Chapman and Hall; 1990.


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