Nigella sativa L. as an alternative antibiotic feed supplement and effect on growth performance in weanling pigs
Beier, Ross C.
Genovese, Kenneth J.
Swaggerty, Christina L.
Hume, Michael E.
Crippen, Tawni L.
Harvey, Roger B.
Anderson, Robin C.
Nisbet, David J.
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BACKGROUNDNigella sativa L. (NS) is a plant containing bioactive constituents such as thymoquinone. Extracts of NS improve performance and reduce enteropathogen colonization in poultry and small ruminants, but studies with swine are lacking. In two different studies oral administration of NS extracts at doses equivalent to 0, 1.5 and 4.5g kg(-1) diet was assessed on piglet performance and intestinal carriage of wildtype Escherichia coli and Campylobacter, and Salmonella Typhimurium. RESULTSWildtype E. coli populations in the jejunal and rectal content collected 9days after treatment began were decreased (P0.05). Populations recovered from pigs treated with extract at 1.5 and 4.5g kg(-1) diet were 0.72-1.31 log(10) units lower than the controls (ranging from 6.05 to 6.61 log(10) CFU g(-1)). Wildtype Campylobacter and Salmonella Typhimurium were unaffected by NS treatment. Feed efficiency over the 9days improved linearly (P<0.05) from 3.88 with 0 NS-treated pigs to 1.47 and 1.41 with pig...s treated with NS at 1.5 and 4.5g kg(-1) diet, respectively, possibly due to high glutamine/glutamic acid content of the NS extract. CONCLUSIONNS supplementation of weanling pigs improved feed efficiency and helped control intestinal E. coli during this vulnerable production phase.
Ključne reči:alternative antibiotic / Escherichia coli / feed conversion ratio / feed supplement / swine / weanling pigs
Izvor:Journal of The Science of Food and Agriculture, 2018, 98, 8, 3175-3181
- Wiley, Hoboken
- Pork Checkoff (National Pork Board) [58-3091-6-021]
- United States Department of Agriculture, Foreign Agricultural Service's Norman E Borlaug International Agricultural Science and Technology Fellowship Program
- Norman E Borlaug Institute for International Agriculture at Texas AM University
- US Department of Agriculture, Agricultural Research ServiceUnited States Department of Agriculture (USDA)