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Shaaban S. Elnesr, Hamada A. M. Elwan, Mohamed I. El Sabry, Abdelrazeq M. Shehata, and M. Alagawany, "Impact of chitosan on productive and physiological performance and gut health of poultry", World's Poultry Science, vol. 78, issue 2, pp. 483-798, 2022.
Sabry, M. E. I., S. S. A. Hassan, M. M. Zaki, and F. K. R. Stino, "Stocking density: a clue for improving social behavior, welfare, health indices along with productivity performances of quail (Coturnix coturnix)-a review.", Tropical animal health and production, vol. 54, issue 1, pp. 83, 2022. Abstract

The quail populations are considered to be one of the largest among the poultry species. Although quail egg and meat production are growing rapidly, still, quail farming practices and welfare aspects are not well established. Stocking density is one of the factors that can significantly affect the welfare, health, and performance of birds, but according to The Expert Group for Technical Advice on Organic Production, no allowed space standards have been reported for new hybrids and different breeds of quail. This review presents an overview of 1) the benefits of egg and meat of quail, 2) the global market of quail products, 3) the factors affecting the stocking density rate, and 4) the effects of stocking density rates and housing systems on the social behavior, welfare, physiological indices, and performance parameters of broiler and laying quail. Conclusively, larger space and enriched aviaries reduce aggressive behavior, and improve the quail welfare and immunological indices. However, the effect of stocking density on some blood biochemical indices and growth performance parameters showed mixed results. A better understanding of the relationship between housing, health, growth performance, and welfare aspects would assist in the implementation of welfare-economic standards for quail production. According to available data, stocking density ranges for broiler and laying Japanese quail are suggested; however, these stocking rates should be tested under different conditions.

S.S. Elnesr, H.A.M. Elwan, M.I. El Sabry, and A. M. Shehata, The nutritional importance of milk thistle (Silybum marianum) and its beneficial influence on poultry, , 2023.