scholarly journals Supplemental carbohydrase enzyme and methionine in broilers fed flaxseed: effects on growth performance, nutrient retention, muscle lipids, and jejunal morphology

2020 ◽  
Vol 29 (4) ◽  
pp. 1033-1044
Author(s):  
M.H. Beheshti Moghadam ◽  
A.E. Aziza ◽  
W. Awadin ◽  
G. Cherian
2019 ◽  
Vol 59 (1) ◽  
pp. 73 ◽  
Author(s):  
Arash Moradi ◽  
Soudabeh Moradi ◽  
M. Reza Abdollahi

The influence of inclusion of pellet binder on physical pellet quality, growth performance, carcass characteristics and total tract apparent retention of nutrients was examined. Broiler starter (Days 1–21, pellet diameter: 2.5 mm) and finisher (Days 22–42, pellet diameter: 4 mm) diets were formulated and then allocated to one of the seven treatments including control diet, and diets including sodium bentonite (10 and 20 g/kg), wheat gluten (10 and 20 g/kg) and wheat (100 and 200 g/kg). All ingredients used as a pellet binder significantly (P < 0.05) increased the pellet-durability index compared with control diet. Wheat gluten and wheat at both inclusion rates were significantly (P < 0.05) more efficient than was sodium bentonite in improving pellet hardness. From Day 1 to Day 42, chickens fed 10 g/kg wheat gluten and 100 and 200 g/kg wheat gained significantly (P < 0.05) more weight than did control. During starters, birds fed 200 g/kg wheat showed the highest feed intake (P < 0.05). On Day 42, all the pellet binders resulted in a heavier heart weight than in the control (P < 0.05). At Day 21, the length of ileum was significantly (P < 0.05) higher in birds fed 10 and 20 g/kg sodium bentonite, 10 g/kg wheat gluten and 200 g/kg wheat, but at Day 42, it was greater in birds fed 20 g/kg wheat gluten and 200 g/kg wheat than in those fed the control diet. Inclusion of wheat gluten (10 and 20 g/kg) and wheat (100 and 200 g/kg) increased (P < 0.05) fat apparent retention. Birds fed 20 g/kg wheat gluten had a significantly (P < 0.05) higher total tract apparent retention of crude fibre, also calcium apparent retention improved by wheat gluten inclusion at concentrations of 10 and 20 g/kg compared with control (P < 0.05). Overall, inclusion of 10 g/kg wheat gluten, and 100 and 200 g/kg of wheat improved physical pellet quality and weight gain in broilers.


2019 ◽  
Vol 19 (3) ◽  
pp. 437
Author(s):  
Siti Murniasih ◽  
Dedi Jusadi ◽  
Mia Setiawati ◽  
Sri Nuryati

Clown loach Chromobotia macracanthus is one of Indonesian native species and as a key species for ornamental aquaculture. The problem in mass production of this species are the low of growth rate which causes a long period of rearing and low of survival rate. The purpose of the present study was to evaluate free glutamine supplementation at different doses in diet to increase physiological response, growth performance and survival rate of clown loach. Expe-rimental diets contained four different free glutamine levels, viz 0, 1, 2 and 3%. These diets were given to six repli-cate groups of 50 juvenile clown loaches. The fish were reared in each aquarium with dimensions of 40×30×30 cm3 for 60 days. Fish were fed four times a day at satiation. Parameters observed including intestinal glutamine concen-tration, villous and intestinal morphometry, intestinal protease activity, feed efficiency, nutrient retention, growth performance, survival rate, superoxide dismutase (SOD) activity, and malondialdehyde (MDA). The results showed that supplementation of 1% free glutamine significantly affected the morphometry of villi. The length and surface area of villi at a dose of 1% showed the highest values i.e., 320.44 ± 10.39 μm and 27,046.79 ± 250.54 μm2, respect-ively. The 1% dose also had a significant effect on protease activity (13.57 ± 1.92 mg units of protein-1) compared to the 0% dose. The 2% dose showed the highest SOD activity (0.82 ± 0.07 mg protein-1 unit) and the lowest MDA level was found at a dose of 3% (0.25 ± 0.02 nmol mg protein-1). Feed consumption with the supplementation of free glutamine has a significant effect on survival rate with the highest value reached 97.00 ± 1.00%, but no significant effect on intestinal morphometry, feed efficiency, nutrient retention and growth performance. Dietary with the sup-plementation of free glutamine is not able to improve growth performance, but can improve the physiological res-ponse and survival rate.


2017 ◽  
Vol 71 (6) ◽  
pp. 486-505 ◽  
Author(s):  
Julia Pinedo-Gil ◽  
Ana Tomás-Vidal ◽  
Miguel Jover-Cerdá ◽  
Cristina Tomás-Almenar ◽  
Miguel Ángel Sanz-Calvo ◽  
...  

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