Vähk ja vähikasvatus
.....................................13
Psorospermium haeckeli...........................................13
Portselanhaigus......................................................14
Bakterid...............................................................14
Viirused...............................................................14
Väliskestal elavad loomad e. epibiondid.........................14
3. Vähikasvatus...........................................................................15
3.1. Vähipoegade kasvatus..............................................................15
3.1.1. Marja hautamine..............................................................15
Eraldihautamine......................................................16
Looduslähedane hautamine........................................16