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14 June 2018 Effect of supplemented microencapsulated zinc oxide and organic acids and pure botanicals on growth performance, nutrient digestibility, blood profiles, feces microflora, and zinc level of feces in weanling pigs
Jin Ho Cho, Shu Dong Liu, Won Yun, Kwang Sik Kim, In Ho Kim
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Abstract

A total of 125 crossbred pigs with an initial body weight (BW) of 7.66 ± 1.30 kg were randomly distributed into one of five dietary treatments. Each treatment had five replicate pens with five pigs per pen. Treatments were as followed: (1) CON, control diet; (2) zinc oxide (ZO), CON + 0.3% ZO; (3) ZOM, CON + 0.3% ZO + 0.1% microencapsulated organic acids and pure botanicals (MOP); (4) microencapsulated zinc oxide (MZO), CON + 0.03% MZO; and (5) MZOM, CON + 0.03% MZO + 0.1% MOP. The MZO group had higher (P = 0.03) final BW than ZO group and also had higher (P = 0.04, 0.01) average daily gain and gain/feed ratio compared with ZO group during days 15–34 and throughout the experimental period. The MZO and MZOM had higher (P < 0.05) apparent total tract digestibility (ATTD) of dry matter (DM) and energy than ZO. Less (P < 0.05) feces Escherichia coli shedding was observed in the ZOM and MZOM diets compared with CON; the MZO had lowered (P = 0.001) zinc level in feces than ZO and CON. In conclusion, results indicated that supplementation with 0.3% MZO could improve the growth performance and ATTD of DM; inclusion of 0.1% MOP could decrease feces E. coli shedding and also decrease the zinc level in feces in weanling pigs.

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Jin Ho Cho, Shu Dong Liu, Won Yun, Kwang Sik Kim, and In Ho Kim "Effect of supplemented microencapsulated zinc oxide and organic acids and pure botanicals on growth performance, nutrient digestibility, blood profiles, feces microflora, and zinc level of feces in weanling pigs," Canadian Journal of Animal Science 99(1), 66-73, (14 June 2018). https://doi.org/10.1139/cjas-2017-0114
Received: 2 August 2017; Accepted: 24 April 2018; Published: 14 June 2018
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KEYWORDS
microencapsulated
organic acids
pig (weanling)
pure botanicals
zinc oxide
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