Increase in Crude Protein Content of Milk Replacers with Vegetable Protein: Effect on Health and Dairy Calves' Performance
| Autor: | Marília Ribeiro de Paula, Paulo Henrique Mazza Rodrigues, Fernanda Lavínia Moura Silva, Evangelina Miqueo, Nathalia Britto Rocha, Carla Maris Machado Bittar, Thais Manzoni Torrezan |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
Low protein General Veterinary 0402 animal and dairy science 04 agricultural and veterinary sciences Biology 040201 dairy & animal science Low volume Protein content Whole milk 03 medical and health sciences 030104 developmental biology Animal science Starter Animal Science and Zoology Composition (visual arts) Food science Feces Total protein |
| Zdroj: | American Journal of Animal and Veterinary Sciences. 12:17-25 |
| ISSN: | 1557-4555 |
| DOI: | 10.3844/ajavsp.2017.17.25 |
| Popis: | The use of milk replacer instead of whole milk may be an economical alternative to calf-rearing systems. However, together with the volume fed, its composition is critical for high performance, especially regarding the origin of the protein. Two milk replacers with different protein content were evaluated to see the effect on the performance of calves. Thirty-three Holstein calves were distributed in the treatments: (1) High Volume and Low Protein (HV/LP), control group: 8 liters, 19.5% CP; (2) High volume and high protein (HV/HP): 8 liters, 23.7% CP and (3) Low Volume and High Protein (LV/HP): 6 liters, 23.7% CP. Calves were gradually weaned from the seventh week of life. Starter feed intake and fecal score were recorded daily. Weekly, calves were weighed, body measurements taken and blood samples were collected for metabolites analysis. Fecal score was lower (P>0.05) for animals in treatments HV/LP. Animals in treatments HV/HP had greater number of days in diarrhea (P 0.05). Regarding blood metabolites, lactate concentration was higher (P |
| Databáze: | OpenAIRE |
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