Effects of Rare Earth Supplementation on Growth Performance, Blood Immune-Related Cell Population, Meat Quality and Fecal Odor Emission Gases in Finishing Pigs
| Autor: | Hyo-Jin Kim, Je-Hyun Lee, Seung Oh Shin, Jong Sang Yoo, Yan Huang, In Ho Kim, Hae-Dong Jang, Jin-Ho Cho, Y.J. Chen |
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| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
education.field_of_study Ecology Veterinary (miscellaneous) Population Fatty acid Tylosin Biochemistry Genetics and Molecular Biology (miscellaneous) chemistry.chemical_compound medicine.anatomical_structure Animal science chemistry Odor Biochemistry White blood cell medicine Animal Science and Zoology Dry matter Intramuscular fat education Feces Food Science |
| Zdroj: | Journal of Animal Science and Technology. 50:485-498 |
| ISSN: | 1598-9429 |
| DOI: | 10.5187/jast.2008.50.4.485 |
| Popis: | This study was conducted to evaluate effects of dietary rare earth on growth performance, blood immune- related cell population, meat quality and fecal odor emitting gases in finishing pigs. The total of sixty four (Landrace×Yorkshire×Duroc) pigs (65.42 ± 1.16 kg in average initial body weight) were used for feeding trial during 10 weeks of experimental period. Dietary treatments included 1) NC (antibiotic free diet), 2) PC (NC diet + 6 weeks 44ppm of tylosin/ 4 weeks 22ppm of tylosin) 3) RE1 (NC diet + 100ppm of RE), 4) RE2 (NC diet + 200ppm of RE). There were four dietary treatments with four replicate pens per treatment and four pigs per pen. During the overall periods, there were no significant differences in ADG (Average daily gain), ADFI (Average daily feed intake) and gain/feed ratio among treatments (P>0.05). Dry matter and nitrogen digestibility were higher in RE2 treatment group than other groups (P |
| Databáze: | OpenAIRE |
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