Growth performance, digestive enzyme activity, non‐specific immune response and stress enzyme status in early stages of grey mullet reared in a biofloc system

2021 ◽  
Author(s):  
Harsha Haridas ◽  
Narinder K. Chadha ◽  
Paramita Banerjee Sawant ◽  
Ashutosh D. Deo ◽  
Muralidhar P. Ande ◽  
...  
Keyword(s):  
Immune Response ◽  
Enzyme Activity ◽  
Growth Performance ◽  
Digestive Enzyme ◽  
Specific Immune Response ◽  
Digestive Enzyme Activity ◽  
Grey Mullet ◽  
Early Stages

scholarly journals Supplemental Bacillus subtilis DSM 29784 and enzymes, alone or in combination, as alternatives for antibiotics to improve growth performance, digestive enzyme activity, anti-oxidative status, immune response and the intestinal barrier of broiler chickens

2020 ◽  
pp. 1-14 ◽  
Author(s):  
Yuanyuan Wang ◽  
Chianning Heng ◽  
Xihong Zhou ◽  
Guangtian Cao ◽  
Lei Jiang ◽  
...  
Keyword(s):  
Immune Response ◽  
Enzyme Activity ◽  
Bacillus Subtilis ◽  
Growth Performance ◽  
Intestinal Microbiota ◽  
Broiler Chickens ◽  
Digestive Enzyme ◽  
Intestinal Barrier ◽  
Digestive Enzyme Activity ◽  
Jejunal Mucosa

Abstract The present study investigated the effect of Bacillus subtilis DSM 29784 (Ba) and enzymes (xylanase and β-glucanases; Enz), alone or in combination (BE) as antibiotic replacements, on the growth performance, digestive enzyme activity, immune response and the intestinal barrier of broiler chickens. In total, 1200 1-d-old broilers were randomly assigned to five dietary treatments, each with six replicate pens of forty birds for 63 d as follows: (a) basal diet (control), supplemented with (b) 1 × 109 colony-forming units (cfu)/kg Ba, (c) 300 mg/kg Enz, (d) 1 × 109 cfu/kg Ba and 300 mg/kg Enz and (e) 250 mg/kg enramycin (ER). Ba, Enz and BE, similar to ER, decreased the feed conversion rate, maintained intestinal integrity with a higher villus height:crypt depth ratio and increased the numbers of goblet cells. The BE group exhibited higher expression of claudin-1 and mucin 2 than the other four groups. BE supplementation significantly increased the α-diversity and β-diversity of the intestinal microbiota and markedly enhanced lipase activity in the duodenal mucosa. Serum endotoxin was significantly decreased in the BE group. Compared with those in the control group, increased superoxide dismutase and glutathione peroxidase activities were observed in the jejunal mucosa of the Ba and BE groups, respectively. In conclusion, the results suggested that dietary treatment with Ba, Enz or BE has beneficial effects on growth performance and anti-oxidative capacity, and BE had better effects than Ba or Enz alone on digestive enzyme activity and the intestinal microbiota. Ba or Enz could be used as an alternative to antibiotics for broiler chickens.

scholarly journals Growth performance, digestive enzyme activity and immune response of Macrobrachium rosenbergii fed with probiotic Clostridium butyricum incorporated diets

2018 ◽  
Vol 30 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Mohammad Saifuddin Sumon ◽  
Fatema Ahmmed ◽  
Sharmin Sultana Khushi ◽  
Mirja Kaizer Ahmmed ◽  
Muhammad Abdur Rouf ◽  
...  
Keyword(s):  
Immune Response ◽  
Enzyme Activity ◽  
Growth Performance ◽  
Digestive Enzyme ◽  
Macrobrachium Rosenbergii ◽  
Clostridium Butyricum ◽  
Digestive Enzyme Activity

scholarly journals Different carbon sources influences the growth and digestive enzyme activity of grey mullet (Mugil cephalus) in biofloc based nursery rearing system

2021 ◽  
Vol 42 (5) ◽  
pp. 1249-1256
Author(s):  
H. Haridas ◽  
◽  
N.K. Chadha ◽  
P.B. Sawant ◽  
A.D. Deo ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Growth Performance ◽  
Culture System ◽  
Digestive Enzyme ◽  
Carbon Sources ◽  
Mugil Cephalus ◽  
Digestive Enzyme Activity ◽  
Myeloperoxidase Activity ◽  
Grey Mullet ◽  
Treatment Groups

Aim: To assess the impact of different carbon sources on growth performance of grey mullet, Mugil cephalus fry in biofloc based culture system during nursery rearing phase. Methodology: The experimental trial was carried out for 60 days using three carbon sources, cassava, jaggery and barley in triplicate following a Completely Randomized Design. The carbon nitrogen ratio (C:N) in the systems were maintained at 15:1. Grey mullet fry (0.91g) were stocked @ of 1 fry 10 l-1 and were fed with pelleted feed (35% crude protein) @ 4% of fish body weight thrice daily. Results: Significantly higher (P<0.05) growth performance, in terms of Specfic Growth Rate (3.78 % day-1) with lower Feed Conversion Ratio (1.35) were found in barley based biofloc group. Similarly, enhanced digestive enzyme activity in terms of amylase (8.78 Unit mg protein-1 min-1), lipase (2.77 Unit mg protein-1 min-1) and protease (4.22 Unit mg protein-1 min-1) were found in barley based biofloc group. Non- specific immune parameters such as lysozyme, respiratory burst activity and myeloperoxidase activity were significantly higher in barley based treatment group followed by jaggery and cassava based treatment groups. Likewise, stress indicators in serum and antioxidant status in liver were found to be lower in barley based treatment compared to cassava and jaggery based treatment groups. Interpretation: Rearing of Mugil cephalus in biofloc culture system is practicable; however, the carbon source required for biofloc production could be barley, compared to cassava and jaggery, in order to achieve maximum growth and to reduce the stress.

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