Ileal and total tract apparent crude protein and amino acid digestibility of ensiled and dried cassava leaves and sweet potato vines in growing pigs
This article appeared in a journal published by Elsevier The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited In most cases authors are permitted to post their version of the article (e.g in Word or Tex form) to their personal website or institutional repository Authors requiring further information regarding Elsevier’s archiving and manuscript policies are encouraged to visit: http://www.elsevier.com/copyright Author's personal copy Animal Feed Science and Technology 172 (2012) 171–179 Contents lists available at SciVerse ScienceDirect Animal Feed Science and Technology journal homepage: www.elsevier.com/locate/anifeedsci Ileal and total tract apparent crude protein and amino acid digestibility of ensiled and dried cassava leaves and sweet potato vines in growing pigs T.H.L Nguyen a,∗ , L.D Ngoan a , G Bosch b , M.W.A Verstegen b , W.H Hendriks b,c a b c Department of Animal Nutrition and Biochemistry, Hue University of Agriculture and Forestry, 102 Phung Hung Street, Hue City, Viet Nam Animal Nutrition Group, Department of Animal Sciences, Wageningen University, P.O Box 338, 6700 AH Wageningen, The Netherlands Department of Farm Animal Health, Faculty of Veterinary Medicine, Utrecht University, P.O Box 80,151, 3508 TD Utrecht, The Netherlands a r t i c l e i n f o Article history: Received 25 November 2009 Received in revised form 17 November 2011 Accepted 18 November 2011 Keywords: Amino acid Cassava leaves Digestibility Pigs Sweet potato vines a b s t r a c t The present study was conducted to determine the ileal and total tract apparent digestibility of crude protein (CP) and amino acids (AA) in ensiled and dried cassava (Manihot esculenta) leaves (CL) and sweet potato (Ipomoea batatas) vines (SPV) as a single ingredient or in a 50:50 mixture of CL + SPV in growing (>60 kg BW) pigs Coefficients of ileal (CIAD) and total tract (CTTAD) apparent digestibilities of organic matter (OM), CP, AA, crude fibre (CF) and neutral detergent fibre (aNDFom) were determined in growing pigs fed practical diets The CP in the diets originated mainly from ensiled and dried CL, SPV or CL + SPV with the main energy source originating from ensiled cassava root which provided less than 9% of the dietary CP The six diets were formulated to contain 120 g CP/kg DM, 13 MJ ME/kg DM and were fed to 60 kg growing pigs in a × Latin square design Daily intake of OM, CF, aNDFom and ME differed (P