Acta fytotechnica et zootechnica, 2, 1999, 4

	Saad T. RASHED, Jozef BULLA, Dušan VAŠIČEK, Alexander V. MAKAREVICH, Jan RAFAY Influence of gene microinjection on development of zygotes and DNA detection in rabbits....86
	Ján NOVÁK Elimination of long-term ruderalisation in pasture ecosystem....90
	Helena GREGOROVÁ, Ľudmila BISTÁKOVÁ The influence of grassing in orchard on some soil properties....94
	Peter ONDRIŠÍK Influence of applied fertilizers and type of soil on nutrient migration in laboratory conditions....97
	Ján JANČOVIČ, Rudolf HOLÚBEK Effect of short-term fertilizing cessation on permanent grassland....100
	Jana URMINSKÁ, Miloslav KHUN, Ľubomír JURKOVIČ Radon risk and natural radioactivity of Žiar Basin Territory....104
	Martin HALAJ, Peter HALAJ, Jozef GOLIAN, František VALÁŠEK, Martin MELEN, František MORAVČÍK The influence of egg order in different clutch lenght on yolk pigmentation using a laying mash supplemented with synthetic pigment for hens....108
	Ján PRASLIČKA, Vladimír UHLÍK Influence of temperature and relative humidity on the development of predatory mite Phytoseiulus persimilis Athias Henriot.....111