Accuracy of Nonlinear Formulation of Broiler Diets: Maximizing Profits

Gonçalves, C. A.; Almeida, Marcel Alessandro de; Faria-Júnior, J. A.; Pinto, MF; Garcia-Neto, Manoel

doi:10.1590/1516-635x1702173-180

Cited by 3 publications

(4 citation statements)

References 10 publications

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“…The results of the present study are consistent with those of Afrouziyeh et al (2010) and Afrouziyeh et al (2011), who obtained higher profitability with using non-linear programming to formulate diets for laying hens of 24 to 32 weeks of age and 32 to 44 weeks of age, respectively. In broilers, other authors (Heydari, 2014;Dadalt et al, 2015;Gonçalves et al, 2015), evaluating feed formulation for maximum profit, also observed that the better live performance provided by minimum cost feeds does not generate maximum profitability of the production system. This is due to the greater nutritional level flexibility provided by non-linear programming, which establishes the required nutritional levels to obtain the highest profit according to the economic scenario (Guevara, 2004;Eits et al, 2005).Therefore, feed formulation using non-linear programming may be an alternative method to minimum cost feed formulation due to the program's ability to combine principles of precision nutrition (Cerrate & Waldroup, 2009;Gonçalves et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

“…Guevara (2004) applied non-linear programming in broiler feed formulation, and was able to determine the metabolizable energy level required to maximize profit, depending on the market scenario. Gonçalves et al (2015) employed mathematical models considering dietary metabolizable energy level, and broiler sex and age to formulate feeds using non-linear programming to maximize profit as a function of market scenarios. Dadalt et al (2015) conducted an experiment comparing feeds formulated using linear and non-linear programming for male and female chickens housed at densities of 10 and 14 birds/m².…”

Section: Introductionmentioning

confidence: 99%

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Performance and Egg Quality of Commercial Laying Hens Fed Diets Formulated Using Non-Linear Programming

Almeida

Silva

Saccomani

et al. 2019

Braz. J. Poult. Sci.

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Feed formulation using linear programming consists of determining the mixture of feedstuffs required to meet pre-established animal nutritional requirements at the lowest cost. On the other hand, with the use of non-linear programming, it is possible to define nutritional requirements at the time of formulation, aiming at maximum profit. The objective of the present study was to compare feeds formulated using linear and non-linear programming in terms of live performance and internal and external egg quality of commercial laying hens. A total of 288 Hisex ® White laying hens, 1.540 ± 0.128 g body weight, were evaluated from 33 to 45 weeks of age. Hens were distributed in a completely randomized block design, including six treatments with six replicates of eight birds each. Three treatments consisted of feeds formulated using linear programming and based on the nutritional requirements of Rostagno et al. (2011), of the genetic strain manual, or mathematical models to maximize performance. The other three treatments consisted of feeds formulated using non-linear programming considering typical, favorable, or unfavorable market scenarios. Data were submitted to analysis of variance, and in case of significance (p<0.05), means were grouped using the Scott-Knott test (5%).The treatments did not influence (p>0.05) Haugh unit, albumen height, or external egg quality parameters. Treatment effects (p<0.05) on yolk weight, albumen weight, yolk color, yolk percentage, albumen percentage, and performance parameters were described. In general, feeds formulated using linear programming and based on nutritional requirements obtained by mathematical models and the genetic strain manual promoted better performance results because the feeds were nutritionally denser. However, the treatments that maximized live performance did not result in higher profitability, which was obtained with the diet formulated for a favorable market scenario using nonlinear programming.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance and Egg Quality of Commercial Laying Hens Fed Diets Formulated Using Non-Linear Programming

Almeida

Silva

Saccomani

et al. 2019

Braz. J. Poult. Sci.

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“…According to [4], the responses for the production of broilers, corresponding to age and the energy content of the diet, understood as being "nutritional density", are defined through the quadratic function, as to the equations. The broilers were evaluated through their body weight gain, feed intake and feed conversion index.…”

Section: Methodsmentioning

confidence: 99%

Nonlinear Feed Formulation For Broiler

Almeida

Neto

Bueno

et al. 2020

Int J Innov Educ Res

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The current scenario requires the application of new computational tools for the feed formulation strategy that uses mathematical modeling in decision making. Noteworthy is the nonlinear programming, which aims not only to formulate a diet that meets the needs of the animal, but also the minimum cost and the maximum profit margin. Thus, the work aimed to validate the use of the nonlinear model (NLM), with maximization of the economic return, through estimates of animal performance and feed costs, according to the price variation of the kg of the broiler (price historical average of 2009 and 2010), the phases of creation and sex. For this purpose, 480 broiler broiler chickens, 240 males and 240 females of the same strain (Cobb 500) were used, from 1 to 56 days of age. The experimental design was entirely randomized, totaling 6 treatments (increasing or decreasing the average historical price of live chicken by 25% or 50%), with 4 replicates and 10 broiler chickens per experimental plot. Performance (weight gain and feed consumption), total energy consumption and profit margin were evaluated. Regarding the formulation principle (Linear and Nonlinear), the performance was very similar in relation to the studied parameters. However, when simulated values of 50% below the historical average, performance was significantly impaired in this specific condition. However, due to the profit margin, it demonstrated that the principle of nonlinear formulation allows to significantly reduce losses (P <0.05), mainly in unfavorable conditions of the price of chicken in the market. It is concluded that the nonlinear principle is more appropriate, since the requirements of all nutrients are automatically adjusted by the mathematical model and with the premise of increasing profitability, different from the linear one, which is to achieve maximum performance and not is directly related to the economic factor.

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“…To optimize energy density and bird performance. [77] Dairy cow To develop the optimal feed mix for dairy cows at different stages of livestock.…”

Section: Year Livestock Application/objective Reference 2020 Broilermentioning

confidence: 99%

Animal Feed Formulation—Connecting Technologies to Build a Resilient and Sustainable System

Akintan,

Gebremedhin,

Uyeh

2024

Animals

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The unprecedented challenges presented by the increase in global population have placed substantial demands on the livestock industry for human nutrition, necessitating heightened animal productivity and leading to an increased demand for natural resources to produce animal feed. Feed producers are leading the charge, consistently refining formulations to adapt to the evolving needs of livestock, driven in part by the cost of over 50% associated with feed production. This paper critically analyses the pressing issues within feed formulation, addressing the requirement for environmentally sustainable practices amidst the challenges of climate change. The exploration extends to how advanced decision support tools can enhance formulation techniques and profitability and contribute to environmental sustainability. Through an in-depth review of current feed formulation technologies, encompassing their applications and limitations, this study aims to enhance the existing knowledge base. Additionally, we examined future trends, highlighting the essential role of connecting technologies to establish a resilient and sustainable system. The emphasis is on the potential of formulation techniques to positively impact the environment and enhance the overall quality and performance of the animals. This paper provides actionable insights to improve animal production by examining feed formulation models and decision support tools. The anticipated outcome is a more informed and sustainable decision-making process, addressing the multifaceted challenges confronted by the livestock industry and making contributions to global efforts in climate change mitigation and environmental stewardship in animal production agriculture.

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Accuracy of Nonlinear Formulation of Broiler Diets: Maximizing Profits

Cited by 3 publications

References 10 publications

Performance and Egg Quality of Commercial Laying Hens Fed Diets Formulated Using Non-Linear Programming

Performance and Egg Quality of Commercial Laying Hens Fed Diets Formulated Using Non-Linear Programming

Nonlinear Feed Formulation For Broiler

Animal Feed Formulation—Connecting Technologies to Build a Resilient and Sustainable System

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