Substitution of soyabean meal with “00” rapeseed meal or its high-protein fraction in the nutrition of hens laying brown-shelled eggs
More details
Hide details
Research Institute of Animal Production, Department of Feed Sciences, 32-083 Balice, Poland
Publication date: 2003-01-02
J. Anim. Feed Sci. 2003;12(1):111-119
One hundred and seventy-five laying hens each of lines Hy-Line and ISA Brown were divided into seven groups of 25 birds and maintained in individual cages from the age of 26 weeks for 9 months of laying. The hens were fed isoprotein and isocaloric diets containing 16.7% crude protein and 11.4 MJ/kg. In the experimental diets, 45, 60 or 100% of the protein of soyabean meal was replaced by protein from regular rapeseed meal (R-RSM) or fractionated rapeseed meal (S-RSM) containing 11% more protein and 14% less crude fibre. Every 8 weeks egg and egg shell quality were assessed on 15 eggs per group; twice during the experiment egg odour was assessed on eggs from all of the hens. The use of rapeseed meal, both R-RSM and S-RSM, had no effect on laying rate parameters of egg and egg shell quality. As the content of rapeseed meal in the diet increased, the weight of eggs decreased (P<0.01). Among the hens fed the ration containing rapeseed meal, 3.4% of the Hy-Line and 7.4% of the ISA Brown hens laid eggs with a fishy odour. The type of rapeseed meal and its content in the diets had no effect on the occurrence or intensity of the non-specific odour of eggs.
The Effects of Replacing Soybean Meal with Different Levels of Rapeseed Meal on Egg Quality Characteristics of Commercial Laying Hens
S.R. Riyazi, Y. Ebrahimnez, K. Nazeradl, N. Maheri-Sis, R. Salamatdus, T. Vahdatpour
Asian Journal of Animal and Veterinary Advances
Worldwide Mycotoxins Exposure in Pig and Poultry Feed Formulations
Philippe Guerre
The Quality of Eggs Derived from Japanese Quail Fed with the Fermented and Non-Fermented Rapeseed Meal
Karolina Wengerska, Anna Czech, Sebastian Knaga, Kamil Drabik, Tomasz Próchniak, Remigiusz Bagrowski, Angelika Gryta, Justyna Batkowska
The effect of feeding untreated rapeseed and iodine supplement on egg quality
M. Lichovníková, L. Zeman, J. Jandásek
Czech Journal of Animal Science
Journals System - logo
Scroll to top