scholarly journals Plasma Very Low Density Lipoproteins, Abdominal Fat Lipase, and Fatness During Rearing in Two Strains of Broiler Chickens

1987 ◽  
Vol 66 (3) ◽  
pp. 471-479 ◽  
Author(s):  
A.A. GRUNDER ◽  
J.R. CHAMBERS ◽  
A. FORTIN
Keyword(s):  
Broiler Chickens ◽  
Abdominal Fat ◽  
Low Density Lipoproteins ◽  
Low Density ◽  
Very Low Density Lipoproteins

scholarly journals The Effects of Turnip (Brassica rapa) Extract on the Growth Performance and Health of Broilers

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 867
Author(s):  
Reza Eghbaldost-Jadid ◽  
Mehran Nosrati ◽  
Behrouz Rasouli ◽  
Alireza Seidavi ◽  
Clive J. C. Phillips
Keyword(s):  
Broiler Chickens ◽  
Growth Promotion ◽  
Antibacterial Properties ◽  
Low Density Lipoproteins ◽  
Feed Additives ◽  
Coliform Bacteria ◽  
Broiler Chicks ◽  
Low Density ◽  
Very Low Density Lipoproteins ◽  
Four Levels

There are concerns about inclusion of antibiotics in the feed of broiler chickens, because of the development of antibiotic resistance, leading to a search for alternative feed additives. Turnip extract is known to have antibacterial properties but has not been tested in the diet of broiler chickens. We allocated 200 broiler chicks to receive one of four levels of turnip extract in their water, 0, 150, 300 or 450 ppm, or a standard antibiotic, Virginiamycin, over a 42-day growing period. Although initially there were detrimental effects of providing 450 ppm, overall the 150 ppm level of supplementation increased weight gain, compared with birds given Virginiamycin, and decreased gizzard weight. Birds given 150 ppm or Virginiamycin had increased low-density lipoproteins (LDLs) and reduced very low-density lipoproteins (VLDLs) in their blood serum and reduced antibody responses to sheep red blood cells, compared to birds in the 450 ppm treatment. Birds given turnip extract at 450 ppm had fewer Gram-negative lactose and coliform bacteria than those provided with no turnip extract, and those provided with 150–300 ppm had the same as those provided with Virginiamycin. Turnip extract could potentially replace antibiotics included in the feed of broiler chickens for growth promotion and the control of bacterial infection of the gastrointestinal tract.

scholarly journals Effect of age and cyclical heat stress on the serum biochemical profile of broiler chickens

2017 ◽  
Vol 38 (3) ◽  
pp. 1383 ◽  
Author(s):  
João Paulo Rodrigues Bueno ◽  
Mara Regina Bueno de Mattos Nascimento ◽  
Julyana Machado da Silva Martins ◽  
Cristiane Ferreira Prazeres Marchini ◽  
Luciana Ruggeri Menezes Gotardo ◽  
...  
Keyword(s):  
Uric Acid ◽  
Heat Stress ◽  
Total Protein ◽  
Aspartate Aminotransferase ◽  
Broiler Chickens ◽  
Low Density Lipoproteins ◽  
Control Treatment ◽  
Low Density ◽  
Very Low Density Lipoproteins ◽  
Cyclical Heat

This study aimed to evaluate the influence of age and cyclical heat stress for 1 hour per day on the levels of serum proteins, metabolites, and enzymes in broiler chickens of 21-42 days of age. We used 420 male broiler chickens, Cobb Avian48TM breed, in a completely randomized experimental design, composed of two treatments and six replicates. The treatments consisted of two thermal environments: one in which broiler chickens were raised under natural conditions of temperature and humidity for the first 42 days of age (control) and another in which chickens were subjected to heat stress at 36°C, from days 16 to 42, for 1 hour per day (1200-1300 hours). At 21, 28, 35, and 42 days of age, approximately 5 mL of blood was collected by cardiac puncture in two birds per replicate. In each serum sample, levels of total protein, albumin, globulin, albumin:globulin ratio, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and gamma-glutamyltransferase (GGT) activity and uric acid, creatinine, total cholesterol, triglycerides, high-density lipoproteins (HDL), very low density lipoproteins (VLDL), low-density lipoproteins (LDL), and glucose levels were determined. Concerning the environment and the age, no significant differences in the levels of glucose, uric acid, ALT, triglycerides, and very low density lipoproteins were observed. There was a significant interaction between the environment and the age for cholesterol and LDL values. At 21 days of age, cholesterol and LDL-cholesterol (LDL-C) were higher in birds under stress than in the control treatment birds, which did not occur in other age groups. Aspartate aminotransferase activity was higher in chickens under cyclical heat stress than in chickens subjected to control treatment and displayed a cubic response regarding the environment. The age of the birds influenced the values of total protein, albumin, globulin, albumin:globulin (A:G) ratio, creatinine, GGT, and HDL. In conclusion, cyclical heat stress, at 36ºC, for one hour, from days 16 to 42 of age increases serum AST, whereas cholesterol and LDL-C levels increase only at day 21, indicating that birds may have adapted to heat stress. Age influenced the activity of AST and GGT and levels of creatinine, total protein, albumin, globulin, A:G ratio, cholesterol, HDL-C, and LDL-C.

scholarly journals Studies of the Proteins in Human Plasma Very Low Density Lipoproteins

1969 ◽  
Vol 244 (20) ◽  
pp. 5687-5694 ◽  
Author(s):  
W. Virgil Brown ◽  
Robert I. Levy ◽  
Donald S. Fredrickson
Keyword(s):  
Human Plasma ◽  
Low Density Lipoproteins ◽  
Low Density ◽  
Very Low Density Lipoproteins
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