Abstract:
This study was carried out in the animal field of the College of Veterinary Medicine at Tikrit University, and continued for 90 days from 10/2/2022 to 12/31/2022, using two levels of spirulina platensis (SP), 8 and 12%, to raise the value of the diet with low- protein (LP) content, on the other hand in lamb diets and to investigate the To assess the impact of spirolina supplementation on testicular tissue health and reproductive outcomes in adult lambs through histological examination. 12 local lambs were used, purchased from the markets of Saladin Governorate - Iraq, and their ages ranged between 3 and 4 months, with an average starting weight of 20.5±0.9 kg, by randomly distributing them into 3 treatments / 4 lambs for each treatment. As follows: The histological analysis of adult lamb testes revealed distinct differences between control and treated groups. Control lamb testes displayed normal seminiferous tubules with spermatozoa and sertoli cells, while treated groups exhibited abnormalities including necrosis, amyloid fluid deposition, and spermatozoa degeneration in the interstitium and tunica propria. Notably, spirolina-treated lambs showed varying degrees of necrosis and amyloid fluid deposition, suggesting potential adverse effects on testicular tissue health. Further investigation is warranted to understand the implications of spirolina supplementation on lamb reproductive health.