The Quality of Eggs from Rosa 1 Hens Fed Diets Containing Seeds of Legume Plants (Lupinus luteus L., Lupinus angustifolius, and Pisum sativum) in Two Laying Phases

Abstract

This study analyzes the eggs’ quality from hens fed with alternative protein to soybean meal (SBM) in relation to laying phase. Here, 226 hens are divided into the control (I) and experimental (II) groups and reared for 50 weeks. There were two feeding phases (weeks 1–36; 37–50). Quality was assessed for 20 eggs from each group. The eggs are analyzed for their external and internal traits. A higher albumen weight in II and higher weights of the components were found in the 37–50 weeks for both groups, also in the percentage of yolk and albumen, however lower eggshell percentage was found for both groups, at the same time they were less durable and found to be thinner. In II, the La Roche color and the L*, b* were lower, but the a* increased, as did the albumen height. In the second phase, the La Roche and DSM color were higher, while the Haugh unit and albumen height decreased. Factors’ interaction was demonstrated for color. Legumes can partly substitute SBM in feed for hens. There were no negative effects on the eggs’ quality for most traits. The differences between the laying phases are due to the natural course and the physiology of laying hens.

Laying Performance, Egg Quality Characteristics, and Egg Yolk Fatty Acids Profile in Layer Hens Housed with Free Access to Chicory- and/or White Clover-Vegetated or Non-Vegetated Areas

“…Moreover, the HI levels in the present study were probably not high enough to significantly affect the egg yolk colour [4]. Our similar results, namely the similar yolk colour of eggs from hens with free access to the vegetated or unvegetated outdoor area, was probably due to hens in all groups receiving a conventional diet containing ingredients with high pigments [37].…”

“…However, the results regarding egg yolk colour are consistent with those of Yilmaz Dikmen et al [38], who found that the influence of the rearing system on the colour of the yolk was insignificant. These discrepancies may result from the chemical and physical properties of egg yolk, the production cycle of the hens, and the varieties and maturity stage of the herbages used [1,14,37]. Moreover, the HI levels in the present study were probably not high enough to significantly affect the egg yolk colour [4].…”

“…Because the egg yolk colour depends mainly upon the diet, the differences in the yolk colour of eggs produced in an outdoor-based system are attributed to the herbage materials consumed by the hens [4,10,14,29,37]. Horsted et al [29] reported that hens that consumed chicory leaves produced eggs with a darker yolk colour than those consuming a grassclover pasture.…”

EFFICIENCY AND PHYSIOLOGICAL SAFETY OF PEAS IN THE DIETS FOR HENS (Gallus gallus L.) OF THE PARENT FLOCK DURING THE LATE LAYING PERIOD

“…Мы полагаем, что в этот период для удешевления рациона оправдано использование гороха, содержание протеина в котором ниже, чем в сое и продуктах ее переработки, принимая во внимание, что пищеварительная система взрослой птицы способна обеспечить хорошее усвоение питательных веществ из комбикормов с горохом. В известных нам публикациях по изучению влияния гороха в рационах в разные продуктивные периоды возраст несушек составлял до 50 нед (17,19,21,22). Сообщения об эффектах комбикормов с горохом на поздних сроках содержания курнесушек родительского стада практически отсутствуют.…”

ЭФФЕКТИВНОСТЬ И ФИЗИОЛОГИЧЕСКАЯ БЕЗОПАСНОСТЬ ГОРОХА В РАЦИОНАХ КУР-НЕСУШЕК (Gallus gallus L.) РОДИТЕЛЬСКОГО СТАДА НА ПОЗДНИХ СРОКАХ СОДЕРЖАНИЯ

“…Ранее отмечали сходные результаты по сохранению качества инкубационных яиц и выводу цыплят (19), а также при включении 20 % гороха в сочетании с препаратом CELLOVIRIDIN G20X (Россия) (60-70 г/т корма) в комбикорма для мясных кур (17,19). Необходимо отметить, что применение ферментных препаратов позволяет эффективно заменять соевый шрот горохом в рационах кур-несушек, и при этом интенсивность яйцекладки и качество яиц остаются высокими (21,22,31).…”