ELBUSHRA AHMED, Magda Elmahdi.
 Effect of black cumin seeds (Nigella sativa L.) supplementation on broilers performance.
<strong>Gezira Journal of Agricultural Science</strong>, [S.l.], v. 11, n. 2, jan. 2013.
ISSN 1728-9556. Available at: &lt;<a href="http://journals.uofg.edu.sd/index.php/gjas/article/view/1077" target="_new">http://journals.uofg.edu.sd/index.php/gjas/article/view/1077</a>&gt;. Date accessed: 25 june 2026.