scholarly journals Effect of Dietary Protein Source and Cereal Type on the Incidence of Sudden Death Syndrome in Broiler Chickens

1990 ◽  
Vol 69 (8) ◽  
pp. 1331-1338 ◽  
Author(s):  
R. BLAIR ◽  
J.P. JACOB ◽  
E.E. GARDINER
Keyword(s):  
Sudden Death ◽  
Dietary Protein ◽  
Broiler Chickens ◽  
Sudden Death Syndrome ◽  
Protein Source ◽  
Dietary Protein Source

THE EFFECTS OF DIETARY MICRONUTRIENT, FAT AND PROTEIN COMPONENTS IN PELLETED FEEDS ON THE INCIDENCE OF SUDDEN DEATH SYNDROME AND OTHER TRAITS AMONG MALE BROILER CHICKENS

1984 ◽  
Vol 64 (1) ◽  
pp. 159-164 ◽  
Author(s):  
F. G. PROUDFOOT ◽  
H. W. HULAN ◽  
K. B. McRAE
Keyword(s):  
Sudden Death ◽  
Key Words ◽  
Soybean Meal ◽  
Dietary Protein ◽  
Broiler Chickens ◽  
Sudden Death Syndrome ◽  
Canola Meal ◽  
Protein Supplements ◽  
Protein Components

Three experiments involving 11 600 male broiler chickens sought to determine if the pelleting process affects the dietary micronutrient, fat and protein components to increase the incidence of sudden death syndrome. Processed dietary micronutrient and fat components were not significantly associated with an increase in sudden death syndrome among broiler chickens. In one of the experiments, the incidence of sudden death syndrome was reduced (P < 0.01) when the dietary protein supplements (soybean meal, canola meal and fishmeal) bypassed the pelleting process. Key words: Sudden death syndrome, broiler chickens, feed pelleting, fat, micronutrients, protein supplements

scholarly journals Effects of Dietary Protein Source and Level on Intestinal Populations of Clostridium perfringens in Broiler Chickens

2004 ◽  
Vol 83 (3) ◽  
pp. 414-420 ◽  
Author(s):  
M.D. Drew ◽  
N.A. Syed ◽  
B.G. Goldade ◽  
B. Laarveld ◽  
A.G. Van Kessel
Keyword(s):  
Clostridium Perfringens ◽  
Dietary Protein ◽  
Broiler Chickens ◽  
Protein Source ◽  
Dietary Protein Source

Interactive effects of dietary protein source and exogenous protease on growth performance, immune competence and jejunal health of broiler chickens

2017 ◽  
Vol 57 (2) ◽  
pp. 252 ◽  
Author(s):  
A. J. Cowieson ◽  
H. Lu ◽  
K. M. Ajuwon ◽  
I. Knap ◽  
O. Adeola
Keyword(s):  
Dietary Protein ◽  
Broiler Chickens ◽  
Morphological Characteristics ◽  
Nutrient Digestibility ◽  
Protein Source ◽  
Interactive Effects ◽  
Canola Meal ◽  
Major Protein ◽  
Dependent Manner ◽  
Dietary Protein Source

A total of 672 male 7-day-old broiler chicks were used in a 14-day cage study to evaluate the interactive effects of dietary protein source and exogenous protease on nutrient digestibility and intestinal physiology. Birds were fed a common starter diet from Days 0 to 7 and switched to experimental diets from Days 7 to 21. Four corn-based dietary treatments were arranged in a 2 × 2 factorial arrangement with factors being two major sources of protein [soybean meal (SBM) or canola meal] and diets offered with or without exogenous protease. Bodyweight gain and gain:feed were higher (P < 0.001) in the diets based on SBM than in the diets based on canola meal and protease was more effective (P < 0.05) in enhancing performance in SBM-based diets. Ileal nitrogen digestibility was increased (P < 0.01) by protease use in diets based on both major protein sources. However, ileal digestible energy was increased (P < 0.05) by protease only in the SBM-based diet resulting in an interaction between diet protein source and exogenous protease. Jejunal villus height tended to be higher (P = 0.07) in birds fed diets based on SBM and protease use increased (P < 0.05) crypt depth only in the SBM-free diets resulting in a significant interaction between protein source and protease use. Patterns of gene expression in jejunal tissue suggested that both dietary protein source and exogenous protease influence the expression of genes responsible for mucin secretion, amino acid transport and immune functionality in an age-dependent manner. It can be concluded that SBM may be a more suitable protein source for young broiler chickens than canola meal and that use of canola meal as a major source of dietary protein may have negative implications for performance, nitrogen digestibility and gut health. However, exogenous protease appears to be more compatible with substrates presented by SBM than is the case for canola meal based on advantages conferred in nutrient digestibility and performance. The beneficial effects of exogenous protease may be linked both to enhanced protein and energy digestibility and improved gut morphological characteristics, secretory and absorptive dynamics and immune resilience.

Diet, total plasma homocysteine concentrations and mortality rates in broiler chickens

2003 ◽  
Vol 83 (3) ◽  
pp. 601-604 ◽  
Author(s):  
S. E. Samuels
Keyword(s):  
Cardiovascular Disease ◽  
Sudden Death ◽  
Broiler Chickens ◽  
Independent Risk Factor ◽  
Total Mortality ◽  
Mortality Rates ◽  
Plasma Homocysteine ◽  
Sudden Death Syndrome ◽  
Total Plasma ◽  
Elevated Plasma

The aim of this study was to determine if total plasma homocysteine (HCY) concentrations and mortality rates due to ascites syndrome and (AS) sudden death syndrome (SDS) in broiler chickens could be lowered by diet. Elevated plasma HCY is an independent risk factor for cardiovascular disease in humans. A total of 828 day-old male broiler chickens (Arbor Acre) were fed, for 6 wk, either a basal practical diet or one supplemented with excess vitamins B6 and B12, folic acid and betaine to stimulate the degradation of HCY. The supplemented diet decreased plasma HCY by 17% (P < 0.05; n = 16 per diet). Total mortality due to AS and SDS was 18% lower in the supplemented diet but this difference was not statistically significant. Key words: Homocysteine, folate, chickens, cardiovascular disease, ascites, sudden death syndrome

THE INVOLVEMENT OF DIETARY PROTEIN SOURCE AND CHILLING IN THE ETIOLOGY OF DIARRHEA IN NEWLY WEANED PIGS

1982 ◽  
Vol 62 (4) ◽  
pp. 1199-1209 ◽  
Author(s):  
V. A. POUTEAUX ◽  
G. I. CHRISTISON ◽  
C. S. RHODES
Keyword(s):  
Transit Time ◽  
Dietary Protein ◽  
The Other ◽  
Protein Source ◽  
Coliform Bacteria ◽  
Protein Concentrate ◽  
Feeding Trial ◽  
Short Term ◽  
Buttermilk Powder ◽  
Dietary Protein Source

Two experiments were conducted to evaluate the involvement of dietary protein and short-term chilling on the incidence of diarrhea and on transit time of digesta in pigs weaned at 3–4 wk of age. The three protein sources used were buttermilk powder (BMP), soybean meal (SBM) or pea protein concentrate (PPC), which provided 85% of the dietary protein. In exp. 1, 72 pigs were exposed to a 16 °C decrease in ambient temperature for 8 h on day 4 of a 9-day feeding trial; 72 pigs were not chilled. The pigs on the PPC diet gained less (539 g) (P < 0.05) than pigs on BMP (1183 g) or SBM (952 g) although intakes were similar. Neither diet nor chilling affected fecal moisture content or the incidence of diarrhea. The PPC ration increased (P < 0.05) transit time (slowed rate of passage) on day 8. Chilling on day 4 decreased (P < 0.05) transit time (18.7 vs. 25.6 h) on that day. Neither protein source nor chilling caused differences in total or coliform bacteria isolated from fecal samples on blood agar or MacConkey's agar. In exp. 2, eight chilled and nine control pigs were euthanized and the quantity of three markers in six segments of the gastrointestinal tract was determined. The PPC diet passed more slowly than the other diets. In chilled pigs, the chromic oxide front was closer to the anus, indicating an increased rate of passage. It was concluded that the severity of the cold exposure was not suffficient to induce diarrhea and that there was no interaction between the effects of chilling and of dietary protein. There was, however, a tendency for chilling to increase the rate of passage of digesta which could have an additive effect on the severity of nutritional diarrhea. Key words: Pigs, weaning, diarrhea, protein, cold, transit time.

Role of cardiac hypoxia in the pathogenesis of sudden death syndrome in broiler chickens – A metabolic and molecular study

2021 ◽  
Author(s):  
Pegah Safaei ◽  
Gholamhossein Khadjeh ◽  
Mohammad Reza Tabandeh ◽  
Keramat Asasi
Keyword(s):  
Sudden Death ◽  
Cardiac Muscle ◽  
Internal Control ◽  
Broiler Chickens ◽  
Sudden Death Syndrome ◽  
Pyruvate Dehydrogenase Kinase ◽  
Cardiac Insufficiency ◽  
Monocarboxylate Transporter ◽  
Pcr Analysis ◽  
Glucose Transporter 1

AbstractSudden death syndrome (SDS) is an economically important disorder in broiler chickens with unknown aetiology. The aim of the present study was to evaluate the metabolic and molecular alterations related to hypoxia in the myocardium of broiler chickens with SDS. Samples from the cardiac muscle of internal control broiler chickens (ICs) (n = 36) and chickens having died of SDS (n = 36) were obtained during the rearing period. The activities of lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) and the concentration of lactate were measured in the cardiac tissue using available commercial kits. The expression of hypoxia-inducing factor 1α (HIF1α), glucose transporter 1 (GLUT1), pyruvate dehydrogenase kinase 4 (PDHK4) and monocarboxylate transporter 4 (MCT4) genes was determined in the myocardium by real-time PCR analysis. The results showed the elevation of lactate level and activities of LDH and CPK in the cardiac muscle of SDS-affected chickens compared with the IC birds (P < 0.05). The cardiac muscle expression of HIF1α, MCT4 and GLUT1 genes was increased, while the PDHK4 mRNA level was decreased in the SDS-affected group compared to those in the IC chickens (P < 0.05). Our results showed that metabolic remodelling associated with hypoxia in the cardiac tissues may have an important role in the pathogenesis of cardiac insufficiency and SDS in broiler chickens.

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