Yolk Color and Lipid Oxidation of the Eggs of Commercial White Layers Fed Diets Supplemented with Vegetable Oils

Sakamoto

et al. 2016

Acta Sci. Anim. Sci.

ABSTRACT. This study evaluated the effect of using lipid sources of plant and animal origin in diets for Japanese quail (Coturnix coturnix japonica) on production performance and internal egg quality. Japanese quails (n = 160) were distributed in a completely randomized design with four treatments and eight replications of five birds each. Lipid sources evaluated were: soybean oil, from poultry slaughterhouse, fish waste and grape seed. The characteristics of performance and internal egg quality were measured every 21 days for a total period of 84 days. Data were subjected to analysis of variance and the means were compared by Tukey's test. There was no effect of treatments on the production performance of birds, except for feed intake, which was higher for birds fed grape seed oil in the diet. Lipid sources evaluated had no influence on the internal egg quality. It can be concluded that the lipid sources evaluated here in can be used as alternative energy in feed for laying quails, without affecting the performance and internal egg quality.Keywords: poultry slaughterhouse, soybean oil, fish waste, grape seed.Fontes lipídicas nas dietas para codornas japonesas em postura: desempenho e qualidade do ovo RESUMO. O objetivo deste trabalho foi avaliar a utilização de fontes lipídicas de origem animal e vegetal nas rações para codornas japonesas (Coturnix coturnix japonica), em relação ao desempenho zootécnico e à qualidade interna do ovo. Foram utilizadas 160 codornas japonesas, distribuídas em delineamento inteiramente casualizado, com quatro tratamentos e oito repetições por tratamento, com cinco aves por repetição. As fontes lipídicas avaliadas foram: óleo de soja, de abatedouro avícola, de resíduo de peixe e de semente de uva. As características de desempenho e qualidade interna dos ovos foram mensurados a cada 21 dias, em um período total de 84 dias. Os dados obtidos foram submetidos à análise de variância e as médias comparadas pelo teste de Tukey. Não houve efeito dos tratamentos sobre o desempenho produtivo das aves, exceto para o consumo de ração, que foi maior para aves alimentadas com óleo de semente de uva nas rações. As fontes energéticas avaliadas não influenciaram a qualidade interna dos ovos. Diante disso, conclui-se que as fontes lipídicas avaliadas neste estudo podem ser utilizadas como ingredientes energéticos nas rações para codornas em postura, sem afetar o desempenho e a qualidade interna dos ovos.Palavras-chave: abatedouro avícola, óleo de soja, resíduo de peixe, semente de uva.

Section: Resultssupporting

confidence: 83%

<b>Lipid sources in diets for egg-laying japanese quail: performance and egg quality

Sakamoto

et al. 2016

Acta Sci. Anim. Sci.

“…This result is corroborated by other studies. Nogueira et al (2014) evaluated the inclusion of different levels of palm oil in the feed of laying hens and concluded that plant-derived lipid sources did not affect production variables even as Faitarone et al (2016) studied 33-week-old laying hens of the Lohmann LSL lineage and concluded that the inclusion of canola, soybean, and linseed oil in the feed did not significantly affect production performance, emphasizing that soybean oil can be replaced by other vegetable sources of oil. In our study, SC and CC using CCOHA did not significantly affect EWL, LP, FCDZ, and FCEM (p>0.05).…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2020

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.

Animal Physiology Nutrition

“…These reactions include a loss of carbon dioxide and water through the pores of the eggshell, with a consequent loss of weight; an increase in pH; and structural modifications in the albumin (Khan, Khan, Bukhsh, Abbass, & Javed, ). In addition to these quality factors, the lipid stability of the egg yolk must be observed throughout storage, because lipid oxidation alters sensorial parameters such as taste, odour and nutritional value, directly influencing the quality of the product offered to the consumer (Faitarone et al, ).…”

Section: Discussionmentioning

confidence: 99%

Dietary inclusion of dehydrated bocaiuva pulp increases the antioxidant potential of quail eggs

Nunes

Eyng

Matumoto‐Pintro

et al. 2018

The aim of this study was to evaluate dietary supplementation of different levels of dehydrated bocaiuva pulp (DBP) on the productive performance of laying quails, and on lipid oxidation, and quality in their eggs. A total of 120 quails were distributed in a completely randomized design with six treatments (0%, 0.1%, 0.2%, 0.3%, 0.4% and 0.5% of DBP), five replicates and four birds per experimental unit. To evaluate lipid oxidation, the eggs were collected on five consecutive days at the end of the trial and distributed in a completely randomized experimental design in a 6 × 5 factorial scheme (eggs from quails fed different levels of DBP × evaluated fresh and after 7, 14, 21 and 28 days). The antioxidant potential of diets was improved (p < 0.05) when the DBP was added estimated as 2,2'‐azinobis‐3‐ethylbenzothiazolin‐6‐sulfonic acid (ABTS) free radical scavenging capacity. No effect (p > 0.05) was observed on feed intake, hen‐day egg production and feed conversion (kg/kg and kg/dz). There were no changes (p > 0.05) in the egg weight, Haugh unit, yolk index or eggshell percentage. Although no difference was observed (p > 0.05), when comparing each level with the control, a negative linear effect (p < 0.05) on specific gravity was observed. In addition, only the treatment with 0.5% pulp exhibited lower (p < 0.05) eggshell thickness compared with the control (0%). Thiobarbituric acid reactive substances (TBARS) analysis showed that as the dietary pulp level was increased, malondialdehyde content decreased linearly (p < 0.05) in the egg yolks, regardless of the storage period. Inclusion of DBP in the diets had no effect (p > 0.05) on the concentration of conjugated dienes in the eggs. The diets containing DBP showed a potential antioxidant effect, reducing the degree of lipid oxidation in egg yolk. However, no beneficial effects were observed on performance and egg quality.