Dietary protein requirement for fingerling Channa punctatus (Bloch), based on growth, feed conversion, protein retention and biochemical composition

Zehra, Saman; Khan, Mukhtar A.

doi:10.1007/s10499-011-9470-8

Cited by 72 publications

(55 citation statements)

References 29 publications

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“…Zehra and Khan reported that growth performance of Corydoras punctatus fingerlings in response to varying levels of dietary protein levels, at 450 g/kg FCR was 1.48 [43]. In this present study, the highest FCR was observed in SW4 diet (3.17) and SW2 diet (2.49) and the lowest FCR was observed in GA2 diet and GA5.…”

Section: Discussionsupporting

confidence: 51%

Enhancements of non-specific immune response in Mugil cephlus by using seaweed extract protection against Vibrio alginolyticus (BRTR07)

Thirunavukkarasu¹,

Pandiyan²,

Deivasigamani³

et al. 2015

J Coast Life Med

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Section: Discussionsupporting

confidence: 51%

Enhancements of non-specific immune response in Mugil cephlus by using seaweed extract protection against Vibrio alginolyticus (BRTR07)

Thirunavukkarasu¹,

Pandiyan²,

Deivasigamani³

et al. 2015

J Coast Life Med

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“…It is well known that protein is an expensive and the most important nutrient for feed formulation (Wee and Tacon, 1982;Zehra and Khan, 2011). In the present study, growth (weight gain and SGR) and survival of pengba increased significantly (p<0.05) with increase in dietary protein levels from 25 to 45%, and thereafter decreased at 50% protein level.…”

Section: R Ramesh Et Alsupporting

confidence: 52%

Effect of varying protein levels on growth and digestive enzyme activities of pengba Osteobrama belangeri (Valenciennes, 1844)

Dube

Reddy

et al. 2017

Indian J. Fish.

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Pengba, Osteobrama belangeri (Valenciennes, 1844) is considered as one of the candidate species for diversification of aquaculture. However, only scanty information is available on its nutrient requirements. Hence, the present study was conducted on growth and digestive enzyme activities of pengba fry in response to different dietary protein levels. Six semi-purified isocaloric diets were formulated with different levels of protein at 5% increments (25, 30, 35, 40, 45 and 50%) and fed to different groups of pengba fry for a period of 60 days. Survival of fish was significantly influenced by different protein levels (p<0.05). The highest weight gain% and specific growth rate (4.17% day -1 ) was obtained at 45% protein level which thereafter declined. The best feed conversion ratio (1.46) was observed at 45% protein level and the highest protein efficiency ratio (2.14) was obtained at 25% protein level with significant difference (p<0.05). The crude protein content of fish was significantly affected by dietary protein levels (p<0.05) and highest was recorded at 45% protein diet. Moisture, ether extract and ash content did not show significant (p>0.05) variation among dietary treatments. The activity of proteolytic enzymes (proteases, typsin and chymotrypsin) and acid phosphatase were signicantly (p<0.05) enhanced by dietary protein levels up to 45%, which were found to decline thereafter. Amylase activity was significantly decreased as protein levels increased in the diet. Lipase and alkaline phosphatase activities were not influenced by dietary protein levels. In the present study, penbga fry fed with 45% protein diet, showed the best growth performance and highest digestive enzyme activities. The activity of digestive enzymes in the gut clearly demonstrated that the proteolytic enzymes are activated in response to dietary protein utilisation and also revealed that pengba fry may require high protein (45%) diet for better growth and survival. Second order polynomial regression analysis revealed that the maximum protein requirement of pengba fry was 45.1% (r 2 = 0.90). The findings of the study is expected to have significant implications for feed development for pengba aquaculture.

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“…The experimental diets were analyzed for niacin and found to contain 0, 8.21, 18.64, 27.43, 36.82, 47.91 and 56.28 mg/kg dry diet. The dietary protein requirement was fixed as per reported by Zehra and Khan, () for C. punctatus . Mineral premix was prepared as per Halver ().…”

Section: Methodsmentioning

confidence: 99%

“…Vitamins are involved in all the biological functions that allow the animals to use energy and protein for maintenance, growth, health, feed conversion and reproduction. If one or more vitamins are deficient, increase in the other nutrients will not overcome the deficiency and permit these functions to occur (Kamalzadeh, Ila, & Heydarnejad, ; Zehra & Khan, , ). The traditionally defined water‐soluble vitamins seem to be essential to all examined farmed fish species so far (Waagbo, ).…”

Section: Introductionmentioning

confidence: 99%

Dietary niacin requirement of fingerlingChanna punctatus(Bloch)

Zehra

Khan

2018

J Appl Ichthyol

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Summary A 16‐week experiment was accomplished to determine the dietary niacin requirement of fingerling Channa punctatus (6.8 ± 0.92 cm; 4.65 ± 0.46 g) by feeding seven casein‐gelatin based isonitrogenous (450 g/kg CP) and isoenergetic (18.39 kJ/g GE) diets with graded levels of niacin (0, 10, 20, 30, 40, 50 and 60 mg/kg diet) twice a day to apparent satiation to triplicate groups of fish. Significantly best absolute weight gain (AWG; 38.19 g/fish), feed conversion ratio (FCR; 1.42) and protein retention efficiency (PRE; 26.47%) were registered in fish fed 40 mg niacin/kg diet. Also, fish fed above diet exhibited maximum carcass protein. Hemoglobin (Hb), RBCs counts and hematocrit (Hct) were improved with the incremental levels of dietary niacin up to 40 mg/kg. However, liver niacin content showed the positive correlation up to 50 mg/kg niacin and then leveled off. Fingerling C. punctatus fed niacin‐free diet showed retarded growth, poor feed utilization, high mortality, difficult motion and skin haemorrhage. Broken‐line regression analysis of AWG, FCR and PRE indicated that fingerling C. punctatus require niacin in the range of 37.1–42.1, whereas that of liver niacin concentration indicated the niacin requirement at 52.3 mg/kg dry diet.

show abstract

Dietary protein requirement for fingerling Channa punctatus (Bloch), based on growth, feed conversion, protein retention and biochemical composition

Cited by 72 publications

References 29 publications

Enhancements of non-specific immune response in Mugil cephlus by using seaweed extract protection against Vibrio alginolyticus (BRTR07)

Enhancements of non-specific immune response in Mugil cephlus by using seaweed extract protection against Vibrio alginolyticus (BRTR07)

Effect of varying protein levels on growth and digestive enzyme activities of pengba Osteobrama belangeri (Valenciennes, 1844)

Dietary niacin requirement of fingerlingChanna punctatus(Bloch)

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