Optimisation of broilers performance to different dietary levels of fibre and different levels and sources of fat from 0 to 14 days of age

Abstract Central composite design (CCD; 3 levels and 3 factors) and response surface methodology (RSM) were used to evaluate the average daily body weight gain (ADG) and feed conversion ratio (FCR) in broiler chicks to different levels of dietary sugar beet pulp (SBP), tallow (T) and soybean oil (SO). A total of 60 battery brooder cages of 7 birds each were assigned to 15 diets of CCD containing 3 levels of SBP (0.00, 1.75, 3.50%), T (0.00, 0.50, 1.00%) and SO (0.00, 0.50, 1.00%), from 0 to 14 days of age. The testable outcomes of CCD were fitted with the quadratic model. The response surface analysis showed significant linear, quadratic, and interaction models for ADG and FCR from 0 to 7 and 7 to 14 days of age. At 7 days of age, maximum ADG and minimum FCR were observed with 0.00% of SBP, T, and SO in the diet. At 14 days of age, maximum ADG was obtained at 0.60%, 0.33% and 0.45% of SBP, T and SO in the diet, and the minimum FCR was observed with 0.98%, 0.00% and 1.00% of SBP, T and SO in diet, respectively. The results of this study showed that with increasing age and development of the gastrointestinal tract of broilers, adverse effects of soluble fibres are reduced, and response surface models can explain the correlation among dietary nutrient concentrations and young broiler performance to achieve the optimal target. HIGHLIGHTS Central composite design reduces the number of trials and the costs. The development of the gastrointestinal tract will moderate the adverse effects of dietary soluble fibre. By the response surface model, the correlations between dietary nutrients can be explained.

[1]  A. Rebolé,et al.  Effect of inulin supplementation and dietary fat source on performance, blood serum metabolites, liver lipids, abdominal fat deposition, and tissue fatty acid composition in broiler chickens. , 2010, Poultry science.

[2]  Ruguo Hu,et al.  Food Product Design: A Computer-Aided Statistical Approach , 1995 .

[3]  Xia Wen-shui,et al.  In vitro binding capacity of cholesterol and bile salts by partially depolymerized chitosans. , 2009 .

[4]  R. Aitken,et al.  Polyunsaturated Fatty Acids in Male and Female Reproduction1 , 2007, Biology of reproduction.

[5]  N. K. Sakomura,et al.  Valor energético do óleo ácido de soja para aves , 2005 .

[6]  L. G. Ensminger.  The Association of Official Analytical Chemists , 1976 .

[7]  A. Golian,et al.  Response surface and neural network models for performance of broiler chicks fed diets varying in digestible protein and critical amino acids from 11 to 17 days of age. , 2011, Poultry science.

[8]  A. Rebolé,et al.  Interaction of dietary high-oleic-acid sunflower hulls and different fat sources in broiler chickens. , 2009, Poultry science.

[9]  A. González-Serrano,et al.  Effect of dietary fiber and fat on performance and digestive traits of broilers from one to twenty-one days of age. , 2009, Poultry science.

[10]  Douglas C. Montgomery,et al.  Response Surface Methodology: Process and Product Optimization Using Designed Experiments , 1995 .

[11]  H. Nassiri Moghaddam,et al.  Response of broiler chickens to calcium and phosphorus restriction: Effects on growth performance, carcase traits, tibia characteristics and total tract retention of nutrients , 2020 .

[12]  B. B. Jensen,et al.  The effect of 𝛃-glucanase supplementation of barley- and oat-based diets on growth performance and fermentation in broiler chicken gastrointestinal tract , 2006, British poultry science.

[13]  P. Zamani,et al.  Various ratios of pectin to cellulose affect intestinal morphology, DNA quantitation, and performance of broiler chickens , 2011 .

[14]  M. Serrano,et al.  Poultry response to high levels of dietary fiber sources varying in physical and chemical characteristics , 2012 .

[15]  P. Lerman,et al.  Problems in determining the best levels of essential nutrients in feedingstuffs , 1975, The Journal of Agricultural Science.

[16]  M. Frikha,et al.  Oat hulls and sugar beet pulp in diets for broilers 1. Effects on growth performance and nutrient digestibility , 2013 .

[17]  K. Chang,et al.  Extraction and Physicochemical Characterization of Pectin from Sunflower Head Residues , 1992 .

[18]  D. Mertens.  Gravimetric determination of amylase-treated neutral detergent fiber in feeds with refluxing in beakers or crucibles: collaborative study. , 2002, Journal of AOAC International.

[19]  J. S. Hunter,et al.  Statistics for experimenters : an introduction to design, data analysis, and model building , 1979 .

[20]  R. Lázaro,et al.  Productive performance of brown-egg laying pullets from hatching to 5 weeks of age as affected by fiber inclusion, feed form, and energy concentration of the diet. , 2015, Poultry science.

[21]  I. Zulkifli,et al.  Dietary selection of fat by heat-stressed broiler chickens , 2006 .

[22]  M. Allen,et al.  Pelleted beet pulp substituted for high-moisture corn: 2. Effects on digestion and ruminal digestion kinetics in lactating dairy cows. , 2003, Journal of dairy science.

[23]  J. Mcnab,et al.  Poultry Feedstuffs: Supply, Composition and Nutritive Value , 2002 .

[24]  A. Golian,et al.  The integration of broiler chicken threonine responses data into neural network models. , 2010, Poultry science.

[25]  Marcos Macari,et al.  Response surface models to predict broiler performance and applications for economic analysis , 2008 .

[26]  Ivan Koschayev,et al.  Feeding Efficiency of Dry Beet Pulp to Broiler Chickens , 2019, Proceedings of the 1st International Symposium Innovations in Life Sciences (ISILS 2019).

[27]  E. Roma,et al.  Measurement of Low Dietary Fiber Intake as a Risk Factor for Chronic Constipation in Children , 1999, Journal of pediatric gastroenterology and nutrition.

[28]  R. Mahdi,et al.  EFFECT OF DIETARY FIBER ON INTESTINAL MORPHOLOGY AND PERFORMANCE OF BROILER CHICKENS , 2011 .

[29]  P. Gerard,et al.  Effects of dietary fat type and level on broiler breeder performance. , 2000, Poultry science.

[30]  J. L. Collins,et al.  Peanut Hull Flour as a Potential Source of Dietary Fiber , 1981 .

[31]  A. Barroeta,et al.  Relationship between dietary unsaturation and vitamin E in poultry. , 2004, Journal of animal physiology and animal nutrition.