Effect of the Use of Molasses in Starter on the Performance, Blood Parameters and Rumen Fermentation of Dairy Calves | ||
| علوم و فنون دامپروری | ||
| Article 7, Volume 8, Issue 30, June 2019, Pages 63-72 PDF (853.69 K) | ||
| DOI: 10.22092/aasrj.2018.124220.1168 | ||
| Authors | ||
| Mehdi Mehrabadi* ; Mohsen Hoseini; Masoud Davoudi | ||
| Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran. | ||
| Abstract | ||
| In order to investigate the effect of adding molasses in starter on yield, blood and stomach parameters of infants' calves, 24 Holstein bulls were completely randomized design with 3 treatments and 8 replicates in each treatment from the fourth day after births were tested for 70 days. Treatments included control diet (0% molasses), control diet + 7.5% molasses and control diet + 15% molasses (based on dry matter) in starter. Dry matter intake at daily and blood and rumen fluid sampling at 35, 50 and 70 days of age were parameters measured. The results of the experiment showed that starter intake pre-weaning in calves consumed molasses with a level of 7.5% was higher (620 vs. 420 and 490 grams/day), but no detectable change was observed in the period post-weaning and the whole period. Daily weight gain in the pre-weaning period was 7.5% for molasses calves, but there was no significant difference in the post-weaning period and the whole period. Feed efficiency did not show significant difference. The calves of molasses had lower ruminal pH than the control group. The levels of butyric and propionic fatty acids in calves consumed molasses were higher than those of the control group. Molasses had higher blood glucose concentrations compared to the control group, although there was a difference among treatments containing 7.5 and 15% molasses. The results indicated that the presence of molasses in the starter feed would probably improve the performance of Holstein calves due to improved rumen fermentation and increased propionate levels. | ||
| Keywords | ||
| Molasses; Calves; Starter; Blood Parameters | ||
| References | ||
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