The Effect of Chlorella Vulgaris on the Neonatal Calves Kept in Cold Farm

Abstract

To improve the development of the neonatal calves, and to stimulate their growth, such ecological feed additives are becoming more popular. One of such products is green algae - Chlorella vulgaris. The suspension of green algae Chlorella vulgaris is natural product easily assimilated by the organism of the animal. It contains all irreplaceable amino acids, vitamins, micro- and macroelements, unsaturated fatty acids, enzymes, natural antiozidants and others (Spolaore, 2006; Morita et al., 1999). Aim of the research was to define the effect of Chlorella vulgaris IFR-111 suspension on the neonatal calves kept in cold farm. Methods. The experiment was carried out with Lithuanian and German Black&White neonatal calves kept in a cold farm during February - March months. By the principle of analogous, were formed two groups of calves - control (n=8) and experimental (n=8). The experiment was continued up to 4 weeks of age. Each calve was kept at an individual stall. Calves of both groups were given natural milk and food additive "Milaflo". According to the recommendations of Spruž (1990) the calves of the experimental group during the whole experiment were given 400 ml of Chlorella vulgaris suspension, concentration of which was 10.8x10 9/L. The suspension was given twice daily: 200 ml in the morning and 200 ml in the evening mixed with milk. [...].