QUALIDADE INTERNA E EXTERNA DE OVOS DE POEDEIRAS COMERCIAIS COM CASCAS NORMAL E VÍTREA

التفاصيل البيبلوغرافية
العنوان: QUALIDADE INTERNA E EXTERNA DE OVOS DE POEDEIRAS COMERCIAIS COM CASCAS NORMAL E VÍTREA
المؤلفون: Naiara Simarro Fagundes, Leticia Souza Silva Carvalho, Evandro de Abreu Fernandes, Daniela Reis Vilela
المصدر: Ciência Animal Brasileira, Volume: 17, Issue: 4, Pages: 509-518, Published: DEC 2016
Ciência Animal Brasileira v.17 n.4 2016
Ciência animal brasileira
Universidade Federal de Goiás (UFG)
instacron:UFG
بيانات النشر: Universidade Federal de Goiás, 2016.
سنة النشر: 2016
مصطلحات موضوعية: 0301 basic medicine, eggshell types, food.ingredient, qualidade do ovo, egg quality, tipo de cascas, Biology, Skin thickness, análises físicas, 03 medical and health sciences, Animal science, food, Yolk, Eggshell, General Veterinary, 0402 animal and dairy science, Reproductive life, 04 agricultural and veterinary sciences, Mineral deposition, Anatomy, 040201 dairy & animal science, Internal quality, 030104 developmental biology, embryonic structures, physical analysis, Animal Science and Zoology
الوصف: Resumo Objetivou-se com esta pesquisa avaliar a qualidade de ovos de galinhas poedeiras classificados em ovos de casca normal e vítrea, produzidos por galinhas em três idades distintas (30, 50 e 70 semanas). Para cada idade foram amostrados 45 ovos de cada tipo de casca. O peso dos ovos em ambos os tipos de casca aumentou com o avanço da idade da galinha. Maior concentração de cálcio na casca foi encontrada nos ovos de casca normal em relação aos de casca vítrea, o teor de fósforo não foi influenciado pelo tipo de casca. A deposição mineral da casca foi constante. A espessura da casca aumentou independentemente do tipo de casca, ao longo da vida reprodutiva da galinha e diminuiu quando a ave se tornou mais velha. O percentual de albúmen aumentou, enquanto a percentagem de proteína e pH do albúmen diminuiram ao longo das idades. Percentagem da gema, umidade e pH diminuíram com o aumento da idade da poedeira, enquanto proteína bruta e extrato etéreo aumentaram. Os ovos de casca vítrea apresentaram casca de qualidade inferior àqueles de casca normal sem, contudo, haver um comprometimento da qualidade interna dos ovos. Abstract The objective of this study was to evaluate the internal and external quality of eggs classified as eggs with normal eggshell and eggs with vitreous eggshell, produced by hens at three different ages. Forty-five eggs of each eggshell type, normal and vitreous, were sampled at the ages of 30, 50, and 70 weeks. The weight of the egg, in both types of eggshell, increased with the advancing age of the hen. Higher concentration of calcium was found in eggs with normal eggshells comparing to eggs with vitreous eggshells. The eggshell type did not affect phosphorus percentage. The mineral deposition of the eggshell was constant. The skin thickness increased irrespective of the shell along the reproductive life of the chicken and decreased when the bird became older. The percentage of albumen increased, while the percentage of albumen protein and pH decreased throughout the ages. Percentage of egg yolk, humidity, and pH decreased with increase of age of the laying hen, whereas crude protein and lipid increased. Eggs with vitreous eggshell showed eggshell with lower quality compared to those with normal eggshell, without, however, compromising the internal quality of albumen and yolk.
وصف الملف: text/html
اللغة: Portuguese
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08a482d565f2284cf341298830a15ebd
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1809-68912016000400509&lng=en&tlng=en
حقوق: OPEN
رقم الأكسشن: edsair.doi.dedup.....08a482d565f2284cf341298830a15ebd
قاعدة البيانات: OpenAIRE