Abstract
This study was conducted to investigate the effects of Biotite V supplementation on growth performance, nutrients digestibility and blood constituents and to evaluate whether Biotite V could replace an antibiotics in growing pigs diet. One hundred twenty pigs with initial body weight of 18.35±0.15 kg were used in a 28 days growth trial. Pigs were allotted to four treatments by sex and body weight in a randomized complete block design. There were six replicate pens per treatment and five pigs per pen. Four dietary treatments were: 1) NC (basal diet without antibiotics), 2) PC (basal diet+0.1% CTC), 3) NCBV (NC diet+0.5% 200 mesh Biotite V) and 4) PCBV (PC diet+0.5% 200 mesh Biotite V). Through the entire experimental period, ADG tented to increase in NCBV and PCBV treatments compared to NC and PC treatments respectively, but no significant differences were observed (p>0.05). ADFI was slightly lower in NCBV and PCBV treatments than that in NC and PC treatments without significant differences (p>0.05). Gain/feed in PC and PCBV treatments was improved significantly compared to NC treatment (p 0.05). RBC, HCT, Hb, lymphocyte and monocyte were increased numerically in NCBV and PCBV treatments compared to NC and PC treatments (p>0.05). WBC was lower in treatment groups than that in NC treatment, but no significant differences were observed (p>0.05). In conclusion, dietary supplementation of Biotite V can better the gain/feed and some of the nutrients digestibilities in growing pigs. It has a possibility to replace antibiotics in swine diet. (Asian-Aust. J. Anim. Sci. 2005. Vol 18, No. 11 : 1642-1645)
Highlights
Antibiotics has been wildly used for many years and played an important role due to the therapeutic effect against disease and improved performance of animals (Kiser, 1976; Corpet, 2000)
This trend made people search for other ways or substances to replace antibiotics as a growth promoter
N digestibility was increased significantly in PCBV and NCBV treatments compared to NC and PC treatments (p
Summary
Antibiotics has been wildly used for many years and played an important role due to the therapeutic effect against disease and improved performance of animals (Kiser, 1976; Corpet, 2000). The over-use of antibiotics leads to several problems, the most important one is the antibiotics resistance which has the possibility of resistant bacteria or genes transferred from animals to human through the food chain (Taylor, 1997; Barton, 2000). Several other countries or areas tend to limit the use of antibiotics recently. This trend made people search for other ways or substances to replace antibiotics as a growth promoter. It is suggested that those kinds of minerals are effective in adsorption and binding cations
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