EFFECTS OF DIFFERENT LEVELS OF DIGESTIBLE ARGININE AND PROTEIN IN STARTER DIETS CONTAINING IDEAL AMINO ACIDS RATIO ON PERFORMANCE, CARCASS TRAITS AND SERUM PARAMETERS OF BROILER CHICKENS

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GHOLAMI M.; HASANABADI A.; NASIRI MOGHADAM H.; GOLIAN A.; HAJATI H.

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Journal: Iranian Journal of Animal Science Research Year:2015 | Volume:7 | Issue:2 Page(s): 139-152

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Title

EFFECTS OF DIFFERENT LEVELS OF DIGESTIBLE ARGININE AND PROTEIN IN STARTER DIETS CONTAINING IDEAL AMINO ACIDS RATIO ON PERFORMANCE, CARCASS TRAITS AND SERUM PARAMETERS OF BROILER CHICKENS

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Keywords

BLOOD PARAMETERSQ2

BROILERQ2

DIGESTIBLE ARGININEQ2

DIGESTIBLE PROTEINQ2

PERFORMANCEQ2

Abstract

Introduction: Nutrition and health during the early days of life have critical effect on BROILER chickens PERFORMANCE. It is well known that the diet formulation based on digestible nutrients is superior to formulation based on total nutrients. The suitable supply of essential amino acids in BROILERs’diets requires proper knowledge of their metabolic effects. The excessive or unbalanced intake of essential and non-essential amino acids can be harmful to BROILERs’ metabolism, due to amino acid antagonisms. Arginine is an essential amino acid for BROILERs since the urea cycle is not functional in birds. Arginine involves in the synthesis of ornithine, a precursor of polyamines that have a key role in cell division, DNA synthesis, nitric oxide (NO) synthesis, and cell cycle regulation. Arginine also increases the release of insulin, growth hormone, and IGF-A and luteinizing hormone (LH) in the blood stream. On the other hand, in corn-soybean meal based diets, arginine is the fifth limiting amino acid after methionine, lysine, threonine, and valine. Thus, this study was carried out to investigate the effects of different levels of DIGESTIBLE ARGININE (DA) and DIGESTIBLE PROTEIN (DP) of starter diets (1-10 d) based on ideal amino acids ratio on PERFORMANCE, carcass traits and serum parameters in BROILER chickens.Materials and Methods: Four hundred day-old male BROILER chickens (Ross 308) were distributed in 10 treatments of 4 replicates (floor pens). The experiment was designed as a 2´5 factorial arrangement in a completely randomized design. Experimental diets were formulated using five levels of DIGESTIBLE ARGININE (1.05, 1.18, 1.31, 1.44 and 1.57%) and 2 levels of DIGESTIBLE PROTEIN (18 and 20%). Chickens were fed experimental diets during 1 to 10 days of age, and then received similar diets formulated according to Ross 308 (2009) recommendations. All birds were provided feed and water ad libitum during the whole rearing period. Temperature was initially set at 32oC on first day and decreased linearly by 0.5oC per day up to 42 days and kept constant temperature. During the experiment, the birds received a lighting program (23-h light and 1-h dark cycle) from day 1 to 42. Weight gain, feed intake and feed conversion ratio were measured weekly. Blood samples were collected from wing veins of birds at 10 days age. After 15 minutes, the blood samples were centrifuged at 3000xg for 15 minutes and serum samples were separated into tubes. Then, serums were stored at-20oC until analyses were carried out. At 10 and 42 days age, one bird from each pen with body weight close to the mean of each pen was selected for carcass analyses. After feed withdrawal, the selected birds were transported to the Ferdowsi university pilot for processing. The chickens were slaughtered by cervical dislocation to determine the carcass characteristics. Data were analyzed by analysis of variance using GLM procedures (SAS, 2001). Means were compared using Duncan's new multiple ranges test (Duncan, 1955). The level of significance was reported at P<0.05.Results and Discussion The results showed that feed intake, daily weight gain and feed conversion ratio (FCR), as well as their interactions were significantly affected by digestible argenine (DA) and DIGESTIBLE PROTEIN (DP) levels in starter diet. The best feed conversion ratio during starter period was related to 20 % DA and 1.31 % DA. DP levels in starter diet had a significant effect on relative weights of liver and abdominal fat (AF) on day 10 and relative weights of gizzard and ileum and also relative lengths of duodenum and ileum on day 42. DA levels significantly affected liver and AF relative weights on day 10. DA and DP interactions had significant effects on relative weight of liver and relative lengths of duodenum, jejunum and ileum on 10th day of age. Effects of DP levels on serum total protein, albumin and phosphorus concentrations were significant. DA levels had significant effects on serum concentrations of uric acid and calcium.Conclusion: The results of current study showed that dietary recommendations of DIGESTIBLE ARGININE and DIGESTIBLE PROTEIN by Ross 308 Company improvemale chicken’s growth PERFORMANCE.

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APA: Copy

GHOLAMI, M., HASANABADI, A., NASIRI MOGHADAM, H., GOLIAN, A., & HAJATI, H.. (2015). EFFECTS OF DIFFERENT LEVELS OF DIGESTIBLE ARGININE AND PROTEIN IN STARTER DIETS CONTAINING IDEAL AMINO ACIDS RATIO ON PERFORMANCE, CARCASS TRAITS AND SERUM PARAMETERS OF BROILER CHICKENS. IRANIAN JOURNAL OF ANIMAL SCIENCE RESEARCH, 7(2), 139-152. SID. https://sid.ir/paper/218456/en

Vancouver: Copy

GHOLAMI M., HASANABADI A., NASIRI MOGHADAM H., GOLIAN A., HAJATI H.. EFFECTS OF DIFFERENT LEVELS OF DIGESTIBLE ARGININE AND PROTEIN IN STARTER DIETS CONTAINING IDEAL AMINO ACIDS RATIO ON PERFORMANCE, CARCASS TRAITS AND SERUM PARAMETERS OF BROILER CHICKENS. IRANIAN JOURNAL OF ANIMAL SCIENCE RESEARCH[Internet]. 2015;7(2):139-152. Available from: https://sid.ir/paper/218456/en

IEEE: Copy

M. GHOLAMI, A. HASANABADI, H. NASIRI MOGHADAM, A. GOLIAN, and H. HAJATI, “EFFECTS OF DIFFERENT LEVELS OF DIGESTIBLE ARGININE AND PROTEIN IN STARTER DIETS CONTAINING IDEAL AMINO ACIDS RATIO ON PERFORMANCE, CARCASS TRAITS AND SERUM PARAMETERS OF BROILER CHICKENS,” IRANIAN JOURNAL OF ANIMAL SCIENCE RESEARCH, vol. 7, no. 2, pp. 139–152, 2015, [Online]. Available: https://sid.ir/paper/218456/en

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