Studies on Length-weight and Length-length Relationship of a Freshwater Fish Gudusia godanahiae from Biratnagar, Nepal

B.R. Subba; R.K. Bhagat; S. Adhikaree

doi:10.3126/on.v7i1.2575

Studies on Length-weight and Length-length Relationship of a Freshwater Fish Gudusia godanahiae from Biratnagar, Nepal

Our Nature ◽

10.3126/on.v7i1.2575 ◽

1970 ◽

Vol 7 (1) ◽

pp. 218-221

Author(s):

B.R. Subba ◽

R.K. Bhagat ◽

S. Adhikaree

Keyword(s):

Freshwater Fish ◽

Fish Pond ◽

Length Relationship ◽

Relationship Of

Present study describes the length-weight (LWR) and length-length (LLR) relationships of a freshwater fish Gudusia godanahiae from a fish pond of Sarochiya, Biratnagar, Nepal. 91 specimens of G. godanahiae were collected from fisherman's catch from Nov 2008 to Oct 2009, were used for this study. The slope value (b) of the LWR are not so close to isometric growth, (b=2.9017). Results for LLR (r2>0.9) P<0.001 indicate that these are highly corrected and highly significant.Key words: Gudusia godanahiae, length-weight, length-length, relationshipDOI: 10.3126/on.v7i1.2575Our Nature (2009) 7:218-221

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Length-Weight Relationship and Sex Ratio of Amblypharyngodon Mola in Dekar Haor of Sunamganj, Bangladesh

Journal of the Asiatic Society of Bangladesh Science ◽

10.3329/jasbs.v44i2.46560 ◽

2018 ◽

Vol 44 (2) ◽

pp. 185-193

Author(s):

PR Das ◽

MS Uddin ◽

MS Islam ◽

M Biswas ◽

MR Mia

Keyword(s):

Sex Ratio ◽

Freshwater Fish ◽

Condition Factor ◽

Correlation Coefficients ◽

Male And Female ◽

Positive Correlation ◽

Average Ratio ◽

Weight Relationship ◽

R Value ◽

Relationship Of

The study was carried out to determine length-weight relationship and sex ratio of a freshwater fish Amblypharyngodon mola (Hamilton 1822) collected from Dekar haor of Sunamganj district during the period of January to August 2017. A total of 2000 fishes were collected for the study and categorized these fishes into three groups namely males, females and combined sexes. Among 2000 mola 777 were male and 1223 were female. Length-weight equations and the correlation coefficients obtained for males, females and combined ones were: males Y = –1.97 + 3.00X, r = 0.883; females Y = –2.30 + 3.41X, r = 0.914 and combined Y = –2.11 + 3.16X, r = 0.904. Female’s A. mola attained more weight with the increases in length. Value of correlation coefficient ‘r’ was 0.883 for male and exhibited highly positive correlation between length and weight. On the contrary, ‘r’ value for female was 0.914 and it had also strongly positive correlation between length and weight relationships. Length-weight relationship of A. mola for male, female and combined sexes showed allometric pattern of growth. Condition factor ‘K’ for male, female and combined sexes was 1.09, 1.05 and 1.06, respectively and indicated better condition of fishes. The highest sex ratio (1 : 2.05) was found in May and the lowest (1 : 1.33) was in February. Dominance of females over males throughout the year was observed with an average ratio of male and female 1 : 1.57. Therefore, results of the study indicate that the existing hydrobiological conditions of the haor are conducive for food availability, free movement, feeding and better growth of the fish. Asiat. Soc. Bangladesh, Sci. 44(2): 185-193, December 2018

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Fecundity of the American Plaice, Hippoglossoides platessoides (Fabr.) from Grand Bank and Newfoundland Areas

Journal of the Fisheries Research Board of Canada ◽

10.1139/f64-049 ◽

1964 ◽

Vol 21 (3) ◽

pp. 597-612 ◽

Cited By ~ 15

Author(s):

T. K. Pitt

Keyword(s):

Egg Production ◽

Fish Length ◽

Northern Slope ◽

Southern Slope ◽

Ovary Weight ◽

Length Relationship ◽

Relationship Of ◽

Hippoglossoides Platessoides

Fecundity estimates were made on a total of 140 mature American plaice from the southern and northern slopes of the Grand Bank and from St. Mary's Bay. Log–log relationships were established between fecundity and fish length, gutted and gilled weight, age, and ovary weight. No differences were found to exist between the fecundity–length relationship of plaice from the three areas, but there is a suggestion that within areas there may be annual differences in egg production. At comparable ages plaice from the southern slope of the Grand Bank are larger in size and produce more eggs than those from the northern slope and St. Mary's Bay.

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273 Effect of Bioadditives on the Bioproductive Behavior and Histomorphometric Changes of cobb-500 Chicks

Journal of Animal Science ◽

10.1093/jas/skab235.258 ◽

2021 ◽

Vol 99 (Supplement_3) ◽

pp. 141-141

Author(s):

José E Miranda ◽

Fabian Astudillo ◽

Alfredo Marin

Keyword(s):

Weight Gain ◽

Digestive Tract ◽

Relative Weight ◽

Live Weight ◽

Microbial Culture ◽

Length Relationship ◽

Randomized Design ◽

Relationship Of ◽

Diarrheal Incidence ◽

Daily Gain

Abstract The objective of this study was to evaluate the probiotic action of two bioadditives and their behavior on the bioproductive parameters and histomorphometric changes of CoBB-500 chickens, in the first 21 days of age. 450 Cobb-500 chicks were used, distributed in three groups of 150 animals each. Control (T1); microbial culture A (T2) and microbial culture B (T3). Substrate T2 (molasses-vinasse) fermented with Lactobacillus acidophillus, L. bulgariccus spp. T3 (molasses-vinasse) fermented with Saccharomyces cerevisiae and Kluyveromyces fragilis (L-4 UCLV). A completely randomized design was used to evaluate live weight, mean daily gain, diarrheal incidence, mortality, relative weight of the digestive tract organs, and histomorphometric changes. In the evaluations carried out at 21 days of age, the weight gain in the chicks that consumed biopreparations (T2 and T3) was higher (P> 0.05). Chickens that consumed biopreparation did not die during the study. The relative weight of the digestive tract organs was higher (P <0.001) in treatments T2 and T3. The length and width of the villi were better in groups T2 and T3 (P <0.05), the depth of the crypts was greater (P <0.05) in T1. Regarding the depth / length relationship of the villi T2 and T3 it was better (P <0.05). It concludes that the inclusion of biopreparations in chicken feed improves weight gain, development and growth of organs of digestive importance. Likewise, a reduction in the occurrence of diarrhea and animal mortality is achieved.

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