Requirement of fingerling Channa punctatus (Bloch) for dietary lysine based on growth, feed conversion and lysine retention efficiency, RNA/DNA ratio, haematological parameters and serum antioxidant activity

Effects of varying levels of Dried Poultry Droppings fed Clarias gariepinus were investigated for 84 days. The fish meal was partially and completely replaced by dried poultry droppings at 0%, 25%, 50%, 75% and 100% inclusions and was allotted T1, T2, T3, T4 and T5 respectively. Investigation conducted on the occurrence of microbes in the fish feeds revealed that T5 varied significantly (p<0.05) in Total Viable Count (TVC) (13.0×105 cfu/g) and Total Fungal Count (TFC) (0.70×105 cfu/g) respectively. The microbial properties of the fish carcass showed that T5 was significantly higher (p<0.05) in TVC (2.72×105 cfu/g), TCC (0.33×105 cfu/g), while T3 and T5 were significantly higher in TFC (0.20×103 cfu/g). The haematological parameters of Clarias gariepinus fed diet substituted with dried poultry droppings showed that Packed Cell Volume (PCV) (43.00 g/l) and Haemoglobin (Hb) (11.23 g/l) of T1 were significantly higher (p<0.05) than other treatments. The values of Red Blood Cell (RBC) revealed that T2 (3.77×106 mm3 ) was significantly different (p<0.05) compared to other treatments. The growth performance showed that T2 varied significantly (p<0.05) in Mean Weight Gain (MWG) (29.33 g) and Feed Conversion Ratio (FCR) (0.09). The findings of the current study imply that feed microbes affected the haematological parameters of the fish and equally suppressed the growth of the fish.

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Effects of Acid Mine Drainage of Coal Mines on Some Haematological Parameters of Channa punctatus (Bloch)

National Academy Science Letters ◽

10.1007/s40009-016-0532-3 ◽

2017 ◽

Vol 40 (2) ◽

pp. 91-94

Author(s):

B. Talukdar ◽

H. K. Kalita ◽

R. A. Baishya ◽

S. Basumatary ◽

A. Dutta ◽

...

Keyword(s):

Acid Mine Drainage ◽

Mine Drainage ◽

Coal Mines ◽

Channa Punctatus ◽

Haematological Parameters ◽

Acid Mine

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CRUDE PROTEIN LEVELS IN THE DIETS OF TAMBAQUI, COLOSSOMA MACROPOMUM (CUVIER, 1818), FINGERLINGS

Revista Caatinga ◽

10.1590/1983-21252016v29n121rc ◽

2016 ◽

Vol 29 (1) ◽

pp. 183-190 ◽

Cited By ~ 7

Author(s):

CHARLYAN DE SOUSA LIMA ◽

MARCOS ANTONIO DELMONDES BOMFIM ◽

JEFFERSON COSTA DE SIQUEIRA ◽

FELIPE BARBOSA RIBEIRO ◽

EDUARDO ARRUDA TEIXEIRA LANNA

Keyword(s):

Survival Rate ◽

Body Fat ◽

Crude Protein ◽

Protein Body ◽

Nitrogen Retention ◽

Feed Conversion ◽

Retention Efficiency ◽

Body Protein ◽

Carcass Yield ◽

Protein Deposition

ABSTRACT: Tambaqui is intensively farmed because of its production characteristics; however, there is a lack of information lacks about the nutritional requirements of this species. The present study aimed to evaluate the effects of various crude protein (CP) levels in the diets of tambaqui fingerlings. A total of 750 fingerlings with an initial weight of 0.35 ± 0.09 g were selected in a completely randomized design with six treatments (experimental feeds with 20%, 24%, 28%, 32%, 36%, and 40% CP), five replicates, and 25 fish per experimental unit. Performance, survival rate, carcass yield, body composition, protein deposition, body fat, and nitrogen retention efficiency were evaluated after 45 days. CP levels did not affect the following: feed conversion, survival rate, moisture content, and carcass yield. However, with increasing CP levels, protein efficiency ratio decreased. Weight gain, feed conversion, and specific growth rate improved until CP levels of 31.57%, 28.90%, and 31.12%, respectively, were achieved. Quadratic effects of elevated CP levels on body fat and body fat deposition were observed at minimum CP levels of 26.55% and 23.77%, respectively; and on body protein, body protein deposition, and nitrogen retention efficiency at maximum CP levels of 29.26%, 32.50%, and 27.21%, respectively. We conclude that a CP level of 31.57% is recommended for the diets of tambaqui fingerlings weighing between 0.35 and 15.11 g, which corresponds to a digestible energy:CP ratio of 9.50 kcal DE/g CP.

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Dietary Effect of Corchorus olitorius Seeds on Growth Performance of Oreochromis niloticus Fingerlings

Aquaculture Studies ◽

10.4194/2618-6381-v21_3_02 ◽

2021 ◽

Vol 21 (3) ◽

pp. 101-107

Author(s):

Oluwafumilola Eunice Afe ◽

Adekunle Ayokanmi Dada ◽

Muhammed Lawal Salihu

Keyword(s):

Weight Gain ◽

Growth Performance ◽

Oreochromis Niloticus ◽

Conversion Ratio ◽

Feed Additives ◽

Feed Conversion Ratio ◽

Haematological Parameters ◽

Corchorus Olitorius ◽

Feed Conversion ◽

Cultured Fish

Incorporating feed additives in diets of cultured fish is aimed at improving growth performance, immunity and carcass quality. Growth performance and some haematological parameters of Oreochromis niloticus fingerlings fed varying inclusion levels of Corchorus olitorius seeds were assessed in the study. O. niloticus fingerlings of initial mean weight 9.35±0.01g were evaluated for a period of 56 days. Five experimental diets were formulated at varying inclusion levels; 0g/100g (control), 0.5g/100g, 1.0g/100g, 1.5g/100g and 2.0g/100g of C. olitoriusseeds. All diets were isonitrogenous with each treatment having triplicates. O. niloticus fingerlings fed 1.5g/100g diet of C. olitoriusrecorded the best growth performance in terms of weight gain, feed conversion ratio (FCR) and specific growth rate (SGR). There was a significant increase in growth and nutritional performance of O. niloticus fingerlings with increasing inclusion of C. olitorius seeds (P<0.05). Significant increase in packed cell volume, white blood cell and haemoglobin were observed in treated O. niloticus fingerlings and there was no adverse effect of C. olitorius seeds on the haematological parameters of the fish. The study showed that C. olitorius seed at 1.5g/100g significantly improved survival rate, weight gain and feed conversion ratio as well as reduced mortalities in the treated groups.

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Effect of Type and Dietary Fat Content on Rabbit Growing Performance and Nutrient Retention from 34 to 63 Days Old

Animals ◽

10.3390/ani11123389 ◽

2021 ◽

Vol 11 (12) ◽

pp. 3389

Author(s):

Saiz del Barrio Alejandro ◽

García-Ruiz Ana Isabel ◽

Nicodemus Nuria

Keyword(s):

Fish Oil ◽

Dietary Fat ◽

Palm Kernel ◽

Nutrient Retention ◽

Daily Weight Gain ◽

Feed Conversion ◽

Retention Efficiency ◽

Palm Kernel Oil ◽

Kernel Oil ◽

Soya Lecithin

The study was carried out on individually and collectively housed growing rabbits from 34 to 63 days of age. Two experiments were conducted using three fat sources: Soybean oil (SBO), Soya Lecithin Oil (SLO), and Lard (L; Exp. 1), and SBO, Fish Oil (FO), and Palm kernel Oil (PKO; Exp. 2), added at two inclusion levels (1.5 and 4.0%). In both trials, 180 rabbits were housed in individual cages and additional 600 rabbits in collective cages from day 34 to 63. Animals fed with 4% dietary fat showed lower Daily Feed Intake (DFI) and Feed Conversion Ratio (FCR) than those fed with 1.5%, except in the individually housed animals in Exp. 1. In the collective housed group in Exp. 1, DFI was a 4.8% higher in animals fed with diets containing lard than those fed with SBO (p = 0.036). Lard inclusion also tended to reduce mortality (p = 0.067) by 60% and 25% compared with SBO and SLO diets, respectively. Mortality was the highest with the higher level of soya lecithin (14% vs. 1%, p < 0.01). A similar mortality rate was observed in the lowest level of SBO. In the grouped-housed animals in Exp. 2, a decrease of DFI (−12.4%), Bodyweight (BW) at 63 d (−4.8%), and Daily Weight Gain (DWG) (−7.8%) were observed with the inclusion of fish oil (p < 0.01) compared to other fat sources. Fish oil also tended to increase (p = 0.078) mortality (13.2%) compared with palm kernel oil (6.45%); similar results were found when animals were individually housed. The overall efficiency of N retention (NRE) increased with the highest level of fat in Exp. 1 (34.9 vs. 37.8%; p < 0.0001). It can be concluded that lard and palm kernel oil are alternative sources of fat due to the reduction of mortality. The inclusion of fish oil impaired animal productivity and increased mortality. An increment of the dietary fat level improved FCR and overall protein retention efficiency.

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METHIONINE PLUS CYSTINE TO LYSINE RATIO IN DIETS FOR TAMBAQUI JUVENILES

Revista Caatinga ◽

10.1590/1983-21252019v32n124rc ◽

2019 ◽

Vol 32 (1) ◽

pp. 243-250 ◽

Cited By ~ 2

Author(s):

Flávio Oliveira Souza ◽

Marcos Antonio Delmondes Bomfim ◽

Felipe Barbosa Ribeiro ◽

Eduardo Arruda Teixeira Lanna ◽

Thalles José Rêgo de Sousa ◽

...

Keyword(s):

Deposition Rate ◽

Feed Efficiency ◽

Block Design ◽

Nitrogen Retention ◽

Feed Conversion ◽

Retention Efficiency ◽

Protein Deposition ◽

Randomized Block Design ◽

Body Fat Content ◽

Quadratic Effects

ABSTRACT The objective of this study was to determine the appropriate ratio of methionine plus cystine to lysine in rations for tambaqui (Colossoma macropomum) juveniles, with initial weights of 0.28 ± 0.08 g and 0.94 ± 0.33 g. A randomized block design consisting of six treatments, five replicates in two blocks, and 20 fish per replicate was implemented. Six isolisinic (1.45%), isoenergetic, isophosphoric, and isocalcic diets, containing different ratios of methionine plus cystine to digestible lysine (50%, 55%, 60%, 65%, 70%, and 75%) were used. Performance and feed efficiency variables, including body composition (moisture, protein, and fat), daily protein deposition rate, daily fat deposition rate, and nitrogen retention efficiency, were evaluated. The specific growth rate and feed conversion presented quadratic effects, with maximum effects from the digestible methionine plus cystine to lysine ratio of 64.4% and 64.8%, respectively. The increase in digestible methionine plus cystine intake resulted in a linear reduction in body fat content with the elevation of the digestible methionine plus cystine to lysine ratio. The digestible methionine plus cystine to lysine ratio recommended in rations for tambaqui fingerlings is 64.8%.

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Lysine requirement for tambaqui juveniles

Semina Ciências Agrárias ◽

10.5433/1679-0359.2018v39n5p2157 ◽

2018 ◽

Vol 39 (5) ◽

pp. 2157

Author(s):

Janayra Cardoso Silva ◽

Marcos Antonio Delmondes Bomfim ◽

Eduardo Arruda Teixeira Lanna ◽

Felipe Barbosa Ribeiro ◽

Jefferson Costa de Siqueira ◽

...

Keyword(s):

Weight Gain ◽

Body Fat ◽

Block Design ◽

Juvenile Fish ◽

Nitrogen Retention ◽

Feed Conversion ◽

Retention Efficiency ◽

Body Protein ◽

Protein Deposition ◽

Formulated Diets

The aim of this study was to determine the requirement for lysine in the diet of juvenile tambaqui (Colossoma macropomum). In total, 750 juvenile fish (0.34 ± 0.02g) were distributed in tanks arranged in a randomized block design with six treatments, five replications in two blocks, and 25 fish per unit, for 50 d. Six levels of digestible lysine were tested (1.30, 1.48, 1.66, 1.84, 2.02, and 2.20%), in formulated diets based on the ideal protein concept. The performance, feed efficiency, daily deposition of protein and body fat, and nitrogen retention efficiency of the fish were evaluated. The consumption of rations and protein, specific growth rate, body composition, and deposition of body fat were not influenced by the lysine levels tested. The consumption of digestible lysine increased linearly and the efficiency of digestible lysine for weight gain decreased linearly with the increase in lysine levels. The levels of digestible lysine that optimized weight gain and body protein deposition were estimated at 1.73 and 1.78%, respectively. The feed conversion and nitrogen retention efficiency were most improved at 1.66% and 1.84%, respectively. The recommended level of dietary lysine for providing better weight gain and body protein deposition in juvenile tambaqui is 1.78%, equivalent to 2.00% total lysine.

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