Morphometric Growth Characteristics and Body Composition of Fish and Amphibians

Mansano, Cleber Fernando Menegasso; Macente, Beatrice Ingrid; Khan, KifayatUllah; Nascimento, Thiago Matias Torres do; Silva, Edney Pereira da; Sakomura, NilvaKazue; Fernandes, João Batista Kochenborger

doi:10.5772/intechopen.69061

Cited by 7 publications

(11 citation statements)

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“…The growth of the brown frog, similar to all animals, depends on the genotype-environment interaction ( Mansano et al, 2017a ). Animal growth is associated with genetics, biotype, race, weight, age, and body state.…”

Section: Discussionmentioning

confidence: 99%

“…Currently, studies of amphibian development are mostly based on years ( Liao, Lu & Jehle, 2014 ; Martof, 1956 ; Miaud, Guyétant & Elmberg, 1999 ). Several studies have mainly focused on the growth of captive bullfrogs ( Mansano et al, 2012 , 2017a ; Pereira et al, 2014 ). However, the study periods, which mainly involved the tadpole period, and the fattening periods of the bullfrog were relatively short.…”

Section: Introductionmentioning

confidence: 99%

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Modelling the growth of the brown frog (Rana dybowskii)

Tong

et al. 2018

PeerJ

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Well-controlled development leads to uniform body size and a better growth rate; therefore, the ability to determine the growth rate of frogs and their period of sexual maturity is essential for producing healthy, high-quality descendant frogs. To establish a working model that can best predict the growth performance of frogs, the present study examined the growth of one-year-old and two-year-old brown frogs (Rana dybowskii) from metamorphosis to hibernation (18 weeks) and out-hibernation to hibernation (20 weeks) under the same environmental conditions. Brown frog growth was studied and mathematically modelled using various nonlinear, linear, and polynomial functions. The model input values were statistically evaluated using parameters such as the Akaike’s information criterion. The body weight/size ratio (Kwl) and Fulton’s condition factor (K) were used to compare the weight and size of groups of frogs during the growth period. The results showed that the third- and fourth-order polynomial models provided the most consistent predictions of body weight for age 1 and age 2 brown frogs, respectively. Both the Gompertz and third-order polynomial models yielded similarly adequate results for the body size of age 1 brown frogs, while the Janoschek model produced a similarly adequate result for the body size of age 2 brown frogs. The Brody and Janoschek models yielded the highest and lowest estimates of asymptotic weight, respectively, for the body weights of all frogs. The Kwl value of all frogs increased from 0.40 to 3.18. The K value of age 1 frogs decreased from 23.81 to 9.45 in the first four weeks. The K value of age 2 frogs remained close to 10. Graphically, a sigmoidal trend was observed for body weight and body size with increasing age. The results of this study will be useful not only for amphibian research but also for frog farming management strategies and decisions.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling the growth of the brown frog (Rana dybowskii)

Tong

et al. 2018

PeerJ

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“…Manuscript to be reviewed Many factors affect the growth of frogs, including not only a captive environment but also the quality and quantity of food and health status (Mansano et al 2017a). Culturing frogs in an artificial environment is difficult even if some aspects of the habitat, such as temperature and humidity, satisfy the needs of the animals.…”

Section: The Fitness Of the Captive Environmentmentioning

confidence: 99%

“…Currently, studies of amphibian development are mostly based on years (Liao et al 2014;Martof 1956;Miaud et al 1999). Several studies have mainly focused on the growth of captive bullfrogs (Mansano et al 2017a;Mansano et al 2012;Pereira et al 2014). However, the study periods, which mainly involved the tadpole period, and the fattening periods of the bullfrog were relatively short.…”

Section: Introductionmentioning

confidence: 99%

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Peer Review #2 of "Modelling the growth of the brown frog (Rana dybowskii) (v0.1)"

2018

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Well-controlled development leads to uniform body size and a better growth rate; therefore, the ability to determine the growth rate of frogs and their period of sexual maturity is essential for producing healthy, high-quality descendant frogs. To establish a working model that can best predict the growth performance of frogs, the present study examined the growth of one-year-old and two-year-old brown frogs (Rana dybowskii) from metamorphosis to hibernation (18 weeks) and out-hibernation to hibernation (20 weeks) under the same environmental conditions. Brown frog growth was studied and mathematically modelled using various nonlinear, linear, and polynomial functions. The model input values were statistically evaluated using parameters such as the Akaike's information criterion (AIC). The body weight/size ratio (K wl) and Fulton's condition factor (K) were used to compare the weight and size of groups of frogs during the growth period. The results showed that the third-and fourth-order polynomial models provided the most consistent predictions of body weight for age 1 and age 2 brown frogs, respectively. Both the Gompertz and third-order polynomial models yielded similarly adequate results for the body size of age 1 brown frogs, while the Janoschek model produced a similarly adequate result for the body size of age 2 brown frogs. The Brody and Janoschek models yielded the highest and lowest estimates of asymptotic weight, respectively, for the body weights of all frogs. The K wl value of all frogs increased from 0.40 to 3.18. The K value of age 1 frogs decreased from 23.81 to 9.45 in the first 4 weeks. The K value of age 2 frogs remained close to 10. Graphically, a sigmoidal trend was observed for body weight and body size with increasing age. The results of this study will be useful not only for amphibian research but also for frog farming management strategies and decisions.

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Plant protein-based diets can replace a fish meal-based diet for sustainable growth and body composition of zebrafish

Aiyelari

Chaudhry

2020

Preprint

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10This 3 x 2 factorial study involving three diets at two stocking densities tested the effect of 11 replacing fish meal (FM) with either soybean meal (SBM) or rapeseed meal (RSM) in diets on 12 growth and body composition of zebrafish (Danio rerio). Fish were fed three times daily for 13 eight weeks. Morphometric and water quality parameters were also determined. The survival 14 rate of the fish ranged from 95.2 -97.8%. The water quality remained within the acceptable 15 limits for tropical aquaculture. The stocking density did not show any significant difference 16 (p>0.05) for the length and weight of the fish. The length, weight and condition factors were 17 significantly higher (p<0.05) in the fish fed FM based diet. The fish length and weight related 18 well (R 2 ) across the diets but this was more significant for RSM than those fed the other two 19 diets. The weight gain (WG), feed conversion ratio (FCR) and protein intake (PI) were 20 significantly higher (p<0.05) in the fish fed the FM based diet than the other diets. No 21 significant differences observed (p>0.05) in the specific growth rate (SGR), food intake (FI) 22 and protein efficiency ratio (PER) among the fish fed the three diets. The crude protein CP, 23 nitrogen-free extract (NFE) and ash contents of these fish did not differ significantly (p>0.05). 24However, the ether extract (EE) of the fish fed SBM diet was significantly lower (p<0.05 than 25 the other two diets. It appears that both SBM and RSM as sustainable source to partially FM 26 in the diets of zebrafish and similar fish species. 27 28 Introduction. 30 Fisheries and aquaculture are the essential sources of food, nutrition, income and 31 livelihood for people around the world. The efforts to promote aquaculture has been recently 32 accelerated towards achieving the goal of food security. One of the recent efforts is to source 33 sustainable plant proteins as an alternative to highly competitive and expensive fish meal and 34 fish oil [ 1 ] for determining their nutritional suitability in fish diets [ 2 ]. The sustainable use of 35 our aquatic resources can only be achieved through concerted efforts in using technology and 36 human resources more effectively by enhancing our understanding about the changing nature 37 of the aquaculture industry. The growth of world aquaculture has been stimulated by several 38 factors, including population increases, dietary shifts and advances in aquaculture technology. 39Diet formulation involve the selection and mixing of feed ingredients to form products that 40 delivers the much-needed nutrients to meet the production goals in fish farming. This practice 41 can also reduce feeding time and feed waste while improving water quality and environmental 42 safety of fish production. 43 Commercial feeds are expensive as most of the ingredients are imported and thus prices 44 are increasing continually. So, finding alternatives to fish meal is needed to reduce cost and 45 reliance on this valuable and finite source of protein. According to Hardy [3], ...

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Morphometric Growth Characteristics and Body Composition of Fish and Amphibians

Cited by 7 publications

References 54 publications

Modelling the growth of the brown frog (Rana dybowskii)

Modelling the growth of the brown frog (Rana dybowskii)

Peer Review #2 of "Modelling the growth of the brown frog (Rana dybowskii) (v0.1)"

Plant protein-based diets can replace a fish meal-based diet for sustainable growth and body composition of zebrafish

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