. C., Huang Chihpin, Tseng Ching-ping. Reduction of H2S/NH3 production from pig feces by cont rolling environmental conditions// J. Environ. Sci. and Helth. A. - 1996. - 31, № 1. - C. 139-155.
Close W.H. Housing systems for optimum environment// Inf. Pig. Top. - 1996. - 11, № 6. - C. 15-17.
Fife E.H., Mushel J.H. J. Immunol. 87, № 6, 1961. - P. 688-695.
Kornievicz A. Dodatki paszowe w zywieniu trzody chlewnij// Biul. inform. // Inst. Zootechn. Zakl. Inform. - Krakow, 1992. - № 190/193. - Р. 66-90.
Pestis Witold, Dobruk Evgenij. Sapropeli w zywieniu svin// Ann. Warsaw. Agr. Vniv. - SCCW. Anim. Sci. - 1999. - № 36. - C. 117-123.
Prej J., Fuchs B., Schleicher A. The effect of carotene and vitamins A and E supplementation on reproduction of sows// Arch. vet. pol. - 1993. - 33, № 1-2. - C. 55-64.
Schweigert Florian J. Neues zum Stoffwechsel und zur Wirkung vom?-Carotin und vitamin A // Kraftfutter. - 1995. - № 6. - C . 271-272.
Vrbanac Ivan, Yammine Rayanne, Krsnik Boris. Utjecai okolisa na trbnje patologije u intenzivnoj svinjogojskoj proizodnji// Zb. sazet priopcen. 5 kongr. biol. Hrv., Pula, 3-7 okt., 1994. - Zagreb, 1994. - C. 233-234.
Xu Zirong, Wang Minqi// Jiangxi nongue daxue xuebao = J. Zhejiang Agr. Univ. - 1999. - 25, № 1. - C. 103-106.
