scholarly journals Dietary L-glutamine supplementation improves growth performance, gut morphology, and serum biochemical indices of broiler chickens during necrotic enteritis challenge

2018 ◽  
Vol 97 (4) ◽  
pp. 1334-1341 ◽  
Author(s):  
G.D. Xue ◽  
R. Barekatain ◽  
S.B. Wu ◽  
M. Choct ◽  
R.A. Swick
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Glutamine Supplementation ◽  
Necrotic Enteritis ◽  
Gut Morphology ◽  
Serum Biochemical ◽  
Biochemical Indices

GROWTH PERFORMANCE, NUTRIENT DIGESTIBILITY AND BLOOD INDICES OF FINISHING BROILER CHICKENS FED VARYING LEVELS OF PRE-GELATINIZED CASSAVA GRITS AS A REPLACEMENT FOR MAIZE

2019 ◽  
Vol 17 (2) ◽  
pp. 81-94
Author(s):  
A. O. LALA ◽  
M. K. OLANREWAJU ◽  
A. P. OLANREWAJU ◽  
R. A. SANUSI ◽  
A. L. OLATUNDE ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Control Diet ◽  
Nutrient Digestibility ◽  
Metabolizable Energy ◽  
Blood Indices ◽  
Serum Biochemical ◽  
Biochemical Indices ◽  
Dietary Treatments

Pre gelatinized cassava grit (PGCG) is a new cassava product produced mechanically and commercially for poultry feeding. Five dietary treatments were formulated with PGCG replacing maize at 0, 25, 50, 75 and 100 % in broiler starter (0-4 weeks) and finisher (4-8 weeks) diets. Two hundred (200) day-old broiler chickens were allotted to the five dietary treatments in a completely random design.  Each treatment was replicated four times with 10 birds per replicate and 40 birds per treatment. At the end of week 4 and 8 of the experiment, data were collected on growth performance, nutrient digestibility, haematological and serum biochemical indices. Final weight and weight gain were significantly (P < 0.05) highest in broilers fed 25 % PGCG diet, followed by those fed control diet. While, (P < 0.05) similar and lower values were obtained from broilers fed other PGCG diets. Feed intake decreased (P < 0.05) with PGCG in the diets at the starting and finishing phases. Dry matter and crude protein digestibility was (P < 0.05) highest in starting broilers fed 25 % PGCG diet, while digestibility (P < 0.05) declined with higher levels of PGCG. At the finishing phase, digestibility of all nutrients was similar (P < 0.05). Apparent metabolizable energy was (P < 0.05) higher in birds fed PGCG diets in the starting and finishing phases. Haematological and serum biochemical indices showed no significant (P>0.05) difference in the broiler chickens fed varying levels of PGCG in the diets. Broiler chickens fed PGCG above 25% in the diet had significantly (P < 0.05) higher proventriculus values when compared with those fed the control diet and 25% PGCG diet. The study revealed that substituting maize with 25 % PGCG in broiler diets improved growth and nutrient digestibility. Reduction in weight gain and non significant increased thiocyanate at higher PGCG inclusion should be improved for effective utilization of pre gelatinized cassava grit in broiler diets.  

scholarly journals Supplementing Garlic Nanohydrogel Optimized Growth, Gastrointestinal Integrity and Economics and Ameliorated Necrotic Enteritis in Broiler Chickens Using a Clostridium perfringens Challenge Model

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2027
Author(s):  
Doaa Ibrahim ◽  
Tamer Ahmed Ismail ◽  
Eman Khalifa ◽  
Shaimaa A. Abd El-Kader ◽  
Dalia Ibrahim Mohamed ◽  
...  
Keyword(s):  
Growth Performance ◽  
Clostridium Perfringens ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Economic Benefits ◽  
Production Costs ◽  
Broiler Chicks ◽  
Necrotic Enteritis ◽  
Feed Conversion ◽  
Intestinal Lesion

Necrotic enteritis (NE) caused by Clostridium perfringens (C. perfringens) results in impaired bird growth performance and increased production costs. Nanotechnology application in the poultry industry to control NE outbreaks is still not completely clarified. Therefore, the efficacy of dietary garlic nano-hydrogel (G-NHG) on broilers growth performance, intestinal integrity, economic returns and its potency to alleviate C. perfringens levels using NE challenge model were addressed. A total of 1200 male broiler chicks (Ross 308) were assigned into six groups; four supplemented with 100, 200, 300 or 400 mg of G-NHG/kg diet and co-challenged with C. perfringens at 21, 22 and 23 d of age and two control groups fed basal diet with or without C. perfringens challenge. Over the total growing period, the 400 mg/kg G-NHG group had the most improved body weight gain and feed conversion efficiency regardless of challenge. Parallel with these results, the mRNA expression of genes encoding digestive enzymes (alpha 2A amylase (AMY2A), pancreatic lipase (PNLIP) and cholecystokinin (CCK)) and intestinal barriers (junctional adhesion molecule-2 (JAM-2), occludin and mucin-2 (Muc-2)) were increased in groups fed G-NHG at higher levels to be nearly similar to those in the unchallenged group. At 14 d post challenge, real-time PCR results revealed that inclusion of G-NHG led to a dose-dependently decrease in the C. perfringens population, thereby decreasing the birds’ intestinal lesion score and mortality rates. Using 400 mg/kg of G-NHG remarkably ameliorated the adverse effects of NE caused by C. perfringens challenge, which contributed to better growth performance of challenged birds with rational economic benefits.

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