191. Pecrely P . Hormonal regulation of feather development and molting on the level of feather follicles // Omis. - 1992. - Vol. 23, N 2.-P. 346-354. 192. Perek ML, Sulman F . The basal metabolic rate in molting and laying hens // En­ docrinology. - 1945. - Vol. 36, N 2. - P. 240-243. 193. Perry C. How much water do birds drink ? // Poultry Intern. - 1975. - Vol. 14, N 12. - P. 24-30. 194. Phelps A. Improved bird performance possible at high temperature // Feedstuff's. - 1990.-Vol. 62, N l.-P . 12, 17. 195. Post-moult performance of layers // Anon. - Poultry Intern. - 1991. - Vol. 30, N 7. - P. 22. 196. Pre-lay fast improves egg size // Anon. - Poultry Sc. - 1993. - Vol. 32, N 7. - P . 20. 197. Qwings W . Water consumption of chickens and turkeys // Feed management. - 1981.-Vol. 32,N l.- P .42-43. 198. Raczkiewiez J., Niespodziewanski M. Woda w produkcji drobiarskey // Drobi- arstwo. - Vol. 22, N 8. - P . 14-15. 199. Rakphongphairoj V . J., Savage T. F., Nakaue H. S. Reproductive performance of four strains of individually caged broiler breeder males fed 16 % and 7 % crude protein diets with arying levels of metabolizable energy // Nutrit. Rep. Intern. - 1989. - Vol. 39, N 2. - P. 225-233. 200. Regulovane napajini nosnic setri vodu a ziepsuje vysledku / Machalek E., Kosar K., Fort M. // Nas. chov. - 1975. - Vol. 35, N 10. - P. 346-347. 201. Reynells R. Water: an important nutrient/ / Poultry Dig. - 1981. - Vol. 40, N 475. -P.514. 202. Richards S. A. Keep your feathers on // Poultry Worl. - 1976. - N 12. - P . 14. 203. Richards S. A. The influence of loss of plumage on temperature regulation in laying hens // J. Agr. Camb. - 1977. - Vol. 89, N 2. - P. 393-398. 204. Robel E. J. A feather abnormality in chicks fed diets deficient in certain amine acids // Poultry Sc. - 1977. - Vol. 56, N 6. - P. 1968-1971. 205. Robison D., Barram K., Trapett P . Economics of short production pauses for six commercial strains of laying hen // Proc. XX World's Poultry Congr. - ew Delhi, India. - 1996.-P.410. 206. Roland D. A., Sr., Bushong R. D. The influence of force molting on the inci­ dence of uncollectable eggs // Poultry Sc. - 1978. - Vol. 57, N l.-P. 22-26. 207. Roland D. A., Brake J. Influence of premolt production on postmolt perform­ ance with explanation for improvement in egg production due force molting // Poultry Sc. - 1982. - Vol. 61, N 12. - P . 2473-2481. 138 Электронная Научная Сельскохозяйственная Библиотека