PSVI-14 Interactive effects of Cordyceps mushroom powder and carbadox on nursery pig performance
| Autor: | Clayton S Chastain, Jim L. Nelssen, Jorge Y P Palencia, Jacob A Richert, Brian T Richert, Morgan T Thayer |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | J Anim Sci |
| ISSN: | 1525-3163 0021-8812 |
| Popis: | The objective was to evaluate the independent and additive effects of Cordyceps mushroom powder and carbadox to pharmacological copper+zinc in nursery pig diets. Two hundred-ten crossbred weanling pigs [(Duroc × (York × Landrace)] avg. 19 d of age and 5.8 kg were used in a 33 day growth trial. Pigs were alloted by weight, sex, ancestry, and assigned to body weight (BW) blocks. Within BW blocks, sex ratios were constant in each pen. Pen was the experimental unit and growth performance was analyzed using BW, ADG, ADFI, and G:F. There were 7 pigs/pen and 6 pens/treatment. Treatments were: 1) a negative diet (NC); 2) positive control (PC; Carbadox, 55 ppm); 3) NC+300 ppm Cordyceps mushroom powder (NC+MP); 4) PC +300 ppm mushroom(PC+MP); 5) supplemental copper sulfate (125 ppm) and zinc oxide (3000 ppm d 0-7, 2000 ppm d 7-35), CuZn. Dietary treatments were fed in a four-phase feeding program (d0-7, d7-14, d14-21, and d21-33). There were no interactions between MP and Carbadox at any time point (P > 0.10). Pigs fed the PC, PC+MP and CuZn treatment had increased BW (P < 0.05), ADG (P < 0.05), ADFI (P < 0.10) and G:F (P < 0.05) over the NC at the end of phases 1, 2, and 3, with no main effect of MP treatment. During Phase 4, pigs fed MP, PC, and CuZn diets all had increased ADG (P < 0.05; 431, 477, 455, 505, 486 g/d, diet 1-5, respectively) and ADFI (P < 0.05) over the NC fed pigs. Overall, d0-33, PC diets and CuZn supplemented pigs had increased ADG (P < 0.05) and ADFI (P < 0.05), with pigs fed MP tending to have increased ADFI (P < 0.08) over NC fed pigs. Feeding nursery pigs pharmacological levels of Cu+Zn and carbadox have economical value to increase nursery pig performance with MP may increase pig ADFI and final BW through potentially complimentary modes of action. |
| Databáze: | OpenAIRE |
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