{{cite journal | last1=Ugwuowo1 | first1=L. C. | author2=A. G. Ezekwe | author3=A. O. Ani | author4=S. I. Eze | author5=C. N. Anyanwu | author6=A. C. Ofomatah | year=2017 | title=METHANE EMISSIONS AND VOLATILE FATTY ACID PRODUCTION FROM MANURE EXCRETED BY CATTLE FED DIETS CONTAINING LIPIDS | journal=Journal of Animal and Plant Sciences | volume=27 | issue=3 | pages=708-713 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2017-JAPS-88}}