<ref name="methana">{{id}} {{cite journal|last=|first=IPB|year=2014|title=Produksi Gas Metana (CH4) dari Feses Sapi FH Laktasi dengan Pakan Rumput Gajah dan Jerami Padi | url=http://journal.ipb.ac.id/index.php/ipthp/article/download/10812/8338 asd| others = |journal=Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan|volume=3|issue=1|pages=40-44}}</ref>
DisektorAda pula Motivasi vegetarian karena religi, <!--semisal Inbervegetarian Jainism,wajib bagi semua pemeluk [[vegetarianismJainisme]], issedangkan mandatorydalam foragama everyone;Hindu in Hinduism anddan [[MahayanaMahāyāna|MahayanaBudha BuddhismMahayana]],itutamanya isdilakukan advocatedoleh bype-syi'ar somekitab influentialsuci scripturesdan andotoritas religious authoritieskeagamaan. <ref>{{cite book| last = Tähtinen| first = Unto| title = Ahimsa: Non-Violence in Indian Tradition | year = 1976| location = London| pages = 107–111| isbn = }}</ref><ref>{{cite book| last = Walters| first = Kerry S.| authorlink = Kerry S. Walters|author2=Lisa Portmess| title = Religious Vegetarianism From Hesiod to the Dalai Lama| year = 2001| location = Albany| pages = 37–91}}</ref>