Nutritional parameters of female goat kids fed diets containing detoxified castor bean cake

Ricardo Alves De Araújo,Ronaldo Carlos Lucas,Roberto Cláudio Fernandes Franco Pompeu,Marcos Cláudio Pinheiro Rogério,José Neuman Miranda Neiva,Magno José Duarte Cândido

doi:10.1590/s1678-3921.pab2020.v55.02257

Abstract

Abstract: The objective of this work was to evaluate the effect of replacing soybean meal (SM) by detoxified castor bean cake (DCC), containing different alkaline solutions, on the nutritional parameters of Saanen and Anglo-Nubian female goat (Capra aegagrus hircus) kids. The treatments consisted of three diets: one based on corn and SM; and two with DCC with Ca(OH)2 or NaOH. Intake and digestibility data were analyzed in two phases according to the growth curves of the goats, which showed: a linear accelerated growth (phase I, from 60 to 298 days of life) and a reduction in the intensity of body growth (phase II, from 299 to 345 days). During phase I, the goat kids fed DCC with NaOH showed a lower intake of dry matter (DM) and nutrients. During phase II, there was significant effect of diets on the intake of nutrients, with the exception of ether extract (EE), total digestible nutrients, and metabolizable energy (ME). A diet effect was observed on the digestibility of DM, crude protein, EE, and neutral detergent fiber, mainly for goat kids fed diets with DCC. Despite their lower intake, the diets formulated with DCC do not negatively affect the nutritional performance of female goats kids in both growth phases, since they result in a greater feed efficiency.

Highlights

With the recent increase in the inclusion of biodiesel in the world energy matrix, the by-products or cakes obtained after the extraction of oil from the processed oilseeds have multiplied, being used for a variety of purposes as, for example, for the production of ruminant feeds (Salami et al, 2019)
The objective of this work was to evaluate the effect of replacing soybean meal by detoxified castor bean cake, containing different alkaline solutions, on the nutritional parameters of Saanen and Anglo-Nubian female goat kids
Intake, expressed in gram per day or as percentage of body weight (BW), was higher for the goats fed soybean meal (SM) and detoxified castor bean cake (DCC) with Ca(OH)2, whereas the intake of Neutral detergent fiber (NDF) was higher for the goats fed only SM

Summary

Introduction

With the recent increase in the inclusion of biodiesel in the world energy matrix, the by-products or cakes obtained after the extraction of oil from the processed oilseeds have multiplied, being used for a variety of purposes as, for example, for the production of ruminant feeds (Salami et al, 2019) This shows the possibility of integrating the agroenergy and agricultural chains, generating employment and income opportunities, besides allowing to minimize the environmental problems caused by the resulting residues (Araújo et al, 2020b). Castor bean cake can still be a viable alternative for use as animal feed after its detoxification process (Palmieri et al, 2016; Araújo et al, 2020a)

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Conclusion