The Effect of Dietary Energy Concentration on Calf Performance1
| Autor: | Kuehn, C.S., Otterby, D.E., Linn, J.G., Olson, W.G., Chester-Jones, H., Marx, G.D., Barmore, J.A. |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Male
NWES Northwest Experiment Station HL high fat milk replacer and low fat starter Health Status HH high fat milk replacer and high fat starter Weaning Fatty Acids Nonesterified Weight Gain Article ADG average daily gain Feces fat Animals Birth Weight calf LL low fat milk replacer and low fat starter technology industry and agriculture food and beverages MR milk replacer Animal Feed Dietary Fats LH low fat milk replacer and high fat starter DE digestible energy Diet Milk SP St. Paul Campus Cattle Female Energy Intake SES Southern Experiment Station energy |
| Zdroj: | Journal of Dairy Science |
| ISSN: | 1525-3198 0022-0302 |
| Popis: | At three locations, 120 calves were fed a high fat milk replacer at 10% of birth weight from d 5 through 13. On d 14, calves were assigned randomly within sex and date of birth to a 2 x 2 factorial arrangement of treatments. Treatments were (on a DM basis) high fat milk replacer (21.6%) and high fat starter (7.3%), high fat milk replacer (21.6%) and low fat starter (3.7%), low fat milk replacer (15.6%) and high fat starter (7.3%), and low fat milk replacer (15.6%) and low fat starter (3.7%). Milk replacer was fed at 8% of birth weight/d from d 14 to 35 and at 4% of birth weight/d from d 36 to 42. High fat replacer depressed DMI before and after weaning. High fat starter depressed DMI after weaning. Before weaning, calves gained more BW when fed low fat replacer. Calves fed low fat starter gained more BW after weaning. On d 56, BW were highest for calves fed low fat replacer and starter and lowest for those fed high fat replacer and starter. Growth or health of calves was not improved by fat addition to the diet. |
| Databáze: | OpenAIRE |
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