Aly,, M., Omar, M. (2003). Spirulina platensis AS NUTRITIONAL PROMOT R FOR SEXUAL PUBERTY IN RAHMANY SHEEP. Journal of Agricultural Chemistry and Biotechnology, 28(5), 4001-4012. doi: 10.21608/jacb.2003.244630
M. S. Aly,; M. A. Omar. "Spirulina platensis AS NUTRITIONAL PROMOT R FOR SEXUAL PUBERTY IN RAHMANY SHEEP". Journal of Agricultural Chemistry and Biotechnology, 28, 5, 2003, 4001-4012. doi: 10.21608/jacb.2003.244630
Aly,, M., Omar, M. (2003). 'Spirulina platensis AS NUTRITIONAL PROMOT R FOR SEXUAL PUBERTY IN RAHMANY SHEEP', Journal of Agricultural Chemistry and Biotechnology, 28(5), pp. 4001-4012. doi: 10.21608/jacb.2003.244630
Aly,, M., Omar, M. Spirulina platensis AS NUTRITIONAL PROMOT R FOR SEXUAL PUBERTY IN RAHMANY SHEEP. Journal of Agricultural Chemistry and Biotechnology, 2003; 28(5): 4001-4012. doi: 10.21608/jacb.2003.244630
Spirulina platensis AS NUTRITIONAL PROMOT R FOR SEXUAL PUBERTY IN RAHMANY SHEEP
1Agricultural Microbiology Dept National Research Centre, Dokkl, Cairo, Egypt
2Animal Reproduction Dept National Research Centre, Dokkl, Cairo, Egypt
Abstract
Seven cyanobacteria groups recorded in Wadi-EL-Natrun lakes included five genera (two Sp < /em>iro/ina, two Oscillatona • one Nostoc, one Ch/om/fa and one ~avicu/s) .
Spirofina was isolated from EI-Khadra lake. Behelra, Egypt. The alga was identified as Spiro/ina p/atensis, and purified as axenic strain. Effect 0 antibiotic treatment on the Spiro/ina p/atensis was studied. Bacterioplankton were different in their antibiotic sensitivity, ampicillin was more effective. Axenic Spirufina p/atensis strain (bacteria free) was cultivated on a large-scale. The dry biomass algal yield contains as high as 60 % crude protein, Sp < /em>irofina dry biomass added to t~e diet of Rahmany male sheep in the rate of 50g/Kg signifICantly increased Ca, P, Mg and Cu concentrations in tl'le blood serum of the animals. This treatment reduced t e period to puberty and sexual maturity to 69 % of that in control animals. Moreover, addition of Spirofina to the diet significantly increased semen volume, semen activity and number of sperms in unit volume. As Sp < /em>iro/ina could optimize tI'le blood picture and accelerates growth of male sheep, it could be recommended as growth prcroter in the diet of sheep and similar animals.