| Autor: |
Zicarelli F; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Iommelli P; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Musco N; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Wanapat M; Tropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand., Lotito D; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Lombardi P; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Infascelli F; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy., Tudisco R; Department of Veterinary Medicine and Animal Production, University of Naples Federico II, 80137 Naples, Italy. |
| Abstrakt: |
The aim of the present trial was to evaluate the growth performance of buffalo calves fed on diets characterized by different forage/concentrate ratios, with or without Saccharomyces cerevisiae supplementation (CBS 493.94, Yea-Sacc ® ). Twenty-four male buffalo calves (mean age of 145.1 ± 16.1 days; mean weight of 108.0 ± 18.7 kg) were assigned randomly to 4 groups, homogeneous in age, that were fed four different diets: diet 1, F:C ratio 50:50; diet 2, F:C ratio 30:70; diet 3, F:C ratio 50:50 + Yea-Sacc ® ; and diet 4, F:C ratio 30:70 + Yea-Sacc ® . Buffalo calves were individually weighted before the start of the experiment and the data were used as a covariate, being taken monthly until the end of the trial. Dry matter intake (DMI), daily weight gain (DWG) and feed conversion ratio (FCR) were calculated. The differences in diets composition significantly ( p < 0.01) affected all these parameters. In particular, the animals fed diet 1 and diet 3 showed higher values of DWG (0.91 and 0.88 g/d vs. 0.68 and 0.66 for group 2 and 4) and DMI (5.8 and 5.3 kg/d, respectively) compared to the other groups (4.3 and 4.4 kg/d for group 2 and 4), as well as a higher final body weight (370.5 and 334.1 kg for group 1 and 3 vs. 272.8 and 273.1 kg of group 2 and 4, respectively). Indeed, the supplementation with Yea-Sacc ® at the dosage of 1 × 10 E8 did not affect buffaloes' growth performance. |
