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Nutrient requirement equations for Indian goat by multiple regression analysis and least cost ration formulation using a linear and non-linear stochastic model

Published: July 26, 2022
By: Vishal Patil 1, Radha Gupta 2, Rajendran Duraisamy 3, Ravinder Singh Kuntal 1 / 1 Department of Mathematics, FET, JAIN (Deemed-to-be University), Bangalore, India; 2 Department of Mathematics, Dayananda Sagar College of Engineering, Bangalore, India; 3 NIANP (National Institute of Animal Nutrition and Physiology), Bangalore, India.
Summary

An elaborate multiple regression analysis was done to arrive a nutrient requirement equation for goat including dry matter intake, DMI (kg/day), total digestible nutrient, TDN (g/day) and crude protein, CP (g/day) based on animal body weight (BW)(kg) and average daily gain (ADG)(g/day). The derived equations were highly significant (p < 0.001) and had high R2 (0.99) values. The estimated values of TDN, CP and DMI are compared with NRC (1981), Kearl (Nutrient Requirements of Ruminants in Developing Countries, All Graduate Theses and Dissertations, 1982), as well as ICAR (Livestock Management, 2013). The estimated total TDN and CP requirements at different body weights and ADG are close to the values of recommended feeding standards of Mandal et al. (Small Ruminant Res., 58, 2005, 201). The estimated DMI values are close to the values of ICAR (Livestock Management, 2013) but lower (26.5%–43.8%) as compared to NRC (1981). Regressed values are used to develop a linear programming (LP) model and a stochastic model (SM) for least-cost ration formulation for the Indian goat breed, whose average BW is about 45 kg and ADG is 130 (g/day), and which is solved using LP simplex and Generalised Reduced Gradient (GRG) nonlinear of Microsoft Excel. The models satisfy the nutrient requirement calculated by regression equations with minimum specified level of variation (usually 5%–10%) in CP and TDN. Both methods adequately meet the nutritional requirements. Therefore, an electronic sheet is developed in Excel to calculate DMI, TDN and CP for different body weights, ADG and formulate the ration by LP and stochastic model.

Keywords: Electronic sheet, linear programming, nutrient requirement, stochastic programming.

        

Abstract published in Journal of Animal Physiology and Animal Nutrition. https://doi.org/10.1111/jpn.13653.

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Authors:
Dr Ravinder Singh Kuntal
Rajendran Duraisamy
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Samad Inamdar
18 de diciembre de 2022
How much nutrition value Daily requirements to goats for weight gain in male goat
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Dawid Kolacz
6 de octubre de 2022

Try OptiFeed formulation software. You have a database built in and also requirements, also for ducks.

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Sumit Pandey
6 de agosto de 2022
Hello Sir, the above abstract just gives the theory and the use case but no numbers to support the claim, can you give more factual and numerical details supporting your claim. Thanks & Regards Sumit Pandey
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Majid Khalid
2 de agosto de 2022
Hello, I would like to know what is the best breed of goat for the production of dairy products in hot/dry climates such as the Arabian peninsula? Thanks
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