Effects of Replacing Medical Zinc Oxide with Different Ratios of Inorganic: Organic Zinc or Reducing Crude Protein Diet with Mixed Feed Additives in Weaned Piglet Diets
Han Jin Oh,
Myung Hoo Kim,
Min Ho Song,
Ji Hwan Lee,
Yong Ju Kim,
Se Yeon Chang,
Jae Woo An,
Young Bin Go,
Dong Cheol Song,
Hyun Ah Cho,
Min Ji Kim,
Hyeun Bum Kim,
Jin Ho Cho
Affiliations
Han Jin Oh
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Myung Hoo Kim
Department of Animal Science, Pusan National University, Miryang 504-63, Korea
Min Ho Song
Division of Animal and Dairy Science, Chungnam National University, Daejeon 341-34, Korea
Ji Hwan Lee
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Yong Ju Kim
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Se Yeon Chang
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Jae Woo An
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Young Bin Go
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Dong Cheol Song
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Hyun Ah Cho
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
Min Ji Kim
Animal Nutrition and Physiology Division, National Institute of Animal Science, Rural Development Administration, Wanju 553-65, Korea
Hyeun Bum Kim
Department of Animal Resource, and Science, Dankook University, Cheonan 311-16, Korea
Jin Ho Cho
Department of Animal Sciences, Chungbuk National University, Cheongju 286-44, Korea
One hundred twenty weaned piglets (9.34 ± 0.74 kg) were used in a four-week experiment to investigate the effects of replacing medical ZnO with a different ratio of inorganic and organic zinc (IZ:OZ) or a low-crude-protein diet (LP) with mixed feed additives (MFAs) in the weaned piglets’ diet. The dietary treatments included a control (CON), T1 (T1; ZnO 1000 mg/kg), T2 (IZ:OZ 850:150), T3 (IZ:OZ 700:300), T4 (IZ:OZ, 500:500), and T5 (LP with MFAs (0.1% essential oils + 0.08% protease + 0.02% xylanase)). The growth performance was decreased (p p p p p < 0.05) in the T5 treatment compared with the CON and T3 treatments. In conclusion, IZ:OZ 500:500 could improve growth performance, nutrient digestibility, and zinc utilization while reducing diarrhea incidence in weaned piglets. Moreover, LP with MFA could replace medical ZnO.
