Inclusion of crude corn oil with high acidity in the feed of laying hens: analysis of egs production and quality

Brenda Carla Luquetti,Veridiana Aparecida Limão,Flávia Sousa Gomes Crosara,Fernanda Heloisa Litz,Evandro De Abreu Fernandes,Sâmela Keila Almeida Dos Santos,Patrícia Lopes Andrade

doi:10.14393/bj-v36n3a2020-42453

Abstract

The objective of this study was to evaluate egg production and quality after including crude corn oil with high acidity (CCOHA) in the feed of laying hens. The design was completely randomized to three treatments and six replicates each. The sample included 90 hens of the Lohmann LSL lineage, housed in cages; each cage contained five animals and constituted an experimental unit. The evaluated feeds were corn-based feed with degummed soybean oil (CSO), corn-based feed with CCOHA (CC) and sorghum-based feed with CCOHA (SC). At the end of the 28-day cycle, the following productivity parameters were evaluated: egg weight at laying (EWL), laying percentage (LP), feed conversion per dozen eggs (FCDZ) and feed conversion per egg mass (FCEM). The evaluated internal and external quality parameters of the eggs were yolk percentage (YP), yolk index (YI), and yolk pH (YpH); albumen percentage (AP), albumen index (AI), and albumen pH (ApH); percentage shell (PS) and shell surface area (SSA); Haugh unit (HU) and egg yolk color (EYC). There were no significant differences in EW, LP, FCDZ, and FCEM between the experimental feeds. Moreover, the use of crude corn oil with high acidity in laying hens rations did not influence the parameters of YP, YI, YpH, AP, AI, ApH, PS, SSA, HU, and EYC.

Highlights

The Brazilian poultry industry produced 39 billion eggs in 2016, and 99.57% of this production was used in the domestic market (ABPA, 2017)
The high offer of this product is due to the adaptation of the sector to the new practices and technologies of poultry production, and lower cost of egg production to meet the demands of the consumer market
The parameters egg weight at laying (EWL), laying percentage (LP), feed conversion per dozen eggs (FCDZ), and feed conversion per egg mass (FCEM) did not differ significantly (p>0.05) between cornbased feed with degummed soybean oil (CSO) and CC, indicating that the replacement of degummed soybean oil (DSO) with crude corn oil with high acidity (CCOHA) in corn-based feeds did not affect these production parameters. These performance parameters found are within the recommended by the lineage, emphasizing that these birds underwent forced molting

Summary

Introduction

The Brazilian poultry industry produced 39 billion eggs in 2016, and 99.57% of this production was used in the domestic market (ABPA, 2017). The high offer of this product is due to the adaptation of the sector to the new practices and technologies of poultry production, and lower cost of egg production to meet the demands of the consumer market. Eggs are considered a wholefood, low-cost protein product (PASCOAL et al, 2008). Because of the high costs of oils, alternative sources that reduce feed costs and do not affect production performance are necessary. The use of by-products generated from industrial processes is a viable alternative, especially crude corn oil with high acidity (CCOHA), generated in the sugarcane industry as a by-product of alcohol production from corn (MARQUES; CUNHA, 2008), during the off-season of sugarcane production. Sugar mills in the off-season of sugarcane in the region of Goiás and Mato Grosso, are producing alcohol from corn and sorghum grain

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