Tags

Type your tag names separated by a space and hit enter

Optimisation of broiler chicken responses from 0 to 7 d of age to dietary leucine, isoleucine and valine using Taguchi and mathematical methods.
Br Poult Sci. 2015; 56(6):696-707.BP

Abstract

Three experiments were conducted to evaluate the applicability of the Taguchi method (TM) and optimisation algorithms to optimise the branch chain amino acids (BCAA) requirements in 0 to 7 d broiler chicks. In the first experiment, the standardised digestible (SID) amino acids and apparent metabolisable energy (AME) values of maize, wheat and soya bean meal were evaluated. In the second experiment, three factors including leucine (Leu), isoleucine (Ile) and valine (Val), each at 4 levels, were selected, and an orthogonal array layout of L16 (4(3)) using TM was performed. After data collection, optimisation of average daily gain (ADG) and feed conversion ratio (FCR) were obtained using TM. The multiobjective genetic algorithm (MOGA) and random search algorithm (RSA) were also applied to predict the optimal combination of BCAA for broiler performance. In the third experiment, a growth study was conducted to evaluate the applicability of obtained optimum BCAA requirements data by TM, MOGA and RSA, and results were compared with those of birds fed with a diet formulated according to Ross 308 recommendations. In the second experiment, the TM resulted in 13.45 g/kg SID Leu, 8.5 g/kg SID Ile and 10.45 g/kg SID Val as optimum level for maximum ADG (21.57 g/bird/d) and minimum FCR (1.11 g feed/g gain) in 0- to 7-d-old broiler chickens. MOGA predicted the following combinations: SID Leu = 14.8, SID Ile = 9.1 and SID Val = 10.3 for maximum ADG (22.05) and minimum FCR (1.11). The optimisation using RSA predicted Leu = 16.0, Ile = 9.5 and Val = 10.2 for maximum ADG (22.67), and Leu = 15.5, Ile = 9.0 and Val = 10.4 to achieve minimum FCR (1.08). The validation experiment confirmed that TM, MOGA and RSA yielded optimum determination of dietary amino acid requirements and improved ADG and FCR as compared to Aviagen recommendations. However, based on the live animal validation trial, MOGA and RSA overpredicted the optimum requirement as compared to TM. In general, the results of these studies showed that the TM may be used to optimise nutrient requirements for poultry.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Sedghi M
a Animal Science Department, Faculty of Agriculture , Ferdowsi University of Mashhad , Mashhad , Iran.
Golian A
a Animal Science Department, Faculty of Agriculture , Ferdowsi University of Mashhad , Mashhad , Iran.
Kolahan F
b Department of Mechanical Engineering , Ferdowsi University of Mashhad , Mashhad , Iran.
Afsar A
c Evonik Degussa Iran AG , Tehran , Iran.

MeSH

Animal FeedAnimal HusbandryAnimal Nutritional Physiological PhenomenaAnimalsAnimals, NewbornChickensDietDietary SupplementsDigestionIsoleucineLeucineMaleModels, BiologicalNutritional RequirementsSoybeansTriticumValineZea mays

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26447759

Citation

Sedghi, M, et al. "Optimisation of Broiler Chicken Responses From 0 to 7 D of Age to Dietary Leucine, Isoleucine and Valine Using Taguchi and Mathematical Methods." British Poultry Science, vol. 56, no. 6, 2015, pp. 696-707.
Sedghi M, Golian A, Kolahan F, et al. Optimisation of broiler chicken responses from 0 to 7 d of age to dietary leucine, isoleucine and valine using Taguchi and mathematical methods. Br Poult Sci. 2015;56(6):696-707.
Sedghi, M., Golian, A., Kolahan, F., & Afsar, A. (2015). Optimisation of broiler chicken responses from 0 to 7 d of age to dietary leucine, isoleucine and valine using Taguchi and mathematical methods. British Poultry Science, 56(6), 696-707. https://doi.org/10.1080/00071668.2015.1096323
Sedghi M, et al. Optimisation of Broiler Chicken Responses From 0 to 7 D of Age to Dietary Leucine, Isoleucine and Valine Using Taguchi and Mathematical Methods. Br Poult Sci. 2015;56(6):696-707. PubMed PMID: 26447759.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimisation of broiler chicken responses from 0 to 7 d of age to dietary leucine, isoleucine and valine using Taguchi and mathematical methods. AU - Sedghi,M, AU - Golian,A, AU - Kolahan,F, AU - Afsar,A, PY - 2015/10/9/entrez PY - 2015/10/9/pubmed PY - 2016/10/8/medline SP - 696 EP - 707 JF - British poultry science JO - Br Poult Sci VL - 56 IS - 6 N2 - Three experiments were conducted to evaluate the applicability of the Taguchi method (TM) and optimisation algorithms to optimise the branch chain amino acids (BCAA) requirements in 0 to 7 d broiler chicks. In the first experiment, the standardised digestible (SID) amino acids and apparent metabolisable energy (AME) values of maize, wheat and soya bean meal were evaluated. In the second experiment, three factors including leucine (Leu), isoleucine (Ile) and valine (Val), each at 4 levels, were selected, and an orthogonal array layout of L16 (4(3)) using TM was performed. After data collection, optimisation of average daily gain (ADG) and feed conversion ratio (FCR) were obtained using TM. The multiobjective genetic algorithm (MOGA) and random search algorithm (RSA) were also applied to predict the optimal combination of BCAA for broiler performance. In the third experiment, a growth study was conducted to evaluate the applicability of obtained optimum BCAA requirements data by TM, MOGA and RSA, and results were compared with those of birds fed with a diet formulated according to Ross 308 recommendations. In the second experiment, the TM resulted in 13.45 g/kg SID Leu, 8.5 g/kg SID Ile and 10.45 g/kg SID Val as optimum level for maximum ADG (21.57 g/bird/d) and minimum FCR (1.11 g feed/g gain) in 0- to 7-d-old broiler chickens. MOGA predicted the following combinations: SID Leu = 14.8, SID Ile = 9.1 and SID Val = 10.3 for maximum ADG (22.05) and minimum FCR (1.11). The optimisation using RSA predicted Leu = 16.0, Ile = 9.5 and Val = 10.2 for maximum ADG (22.67), and Leu = 15.5, Ile = 9.0 and Val = 10.4 to achieve minimum FCR (1.08). The validation experiment confirmed that TM, MOGA and RSA yielded optimum determination of dietary amino acid requirements and improved ADG and FCR as compared to Aviagen recommendations. However, based on the live animal validation trial, MOGA and RSA overpredicted the optimum requirement as compared to TM. In general, the results of these studies showed that the TM may be used to optimise nutrient requirements for poultry. SN - 1466-1799 UR - https://www.unboundmedicine.com/medline/citation/26447759/Optimisation_of_broiler_chicken_responses_from_0_to_7_d_of_age_to_dietary_leucine_isoleucine_and_valine_using_Taguchi_and_mathematical_methods_ DB - PRIME DP - Unbound Medicine ER -