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The nutritive value, intake, digestibility and nitrogen balance of farm-grown and prepared sunflower-based dairy calf meals.

pmid: 10509424
The nutritive value, intake, digestibility and nitrogen balance of farm-grown and prepared sunflower-based dairy calf meals.
The dry matter intake (DMI), digestibility and nitrogen balance of three sunflower-based farm-grown calf meals with different roughage sources (maize stover, MSM; groundnut tops, GTM; and veld hay, VHM) and a commercial calf starter meal (control; CSM) were studied for 47 days (26 days pre- and 21 days post-weaning) in calves. The DMI was lower (but p > 0.05) with CSM (0.369 kg/day) than with the farm-grown meals (mean 0.559 kg/day), and the daily weight gain (kg/day) did not differ significantly (p > 0.05) between CSM (0.107), GTM (0.053), MSM (0.157) and VHM (0.217). Dry matter, organic matter and protein digestibility were higher (p < 0.07) on the CSM than on the GTM treatment. Nitrogen retention was least (p < 0.05) in calves fed GTM (3.0 g N/day) compared to those fed MSM (10.4), VHM (5.0) or CSM (3.9). These results indicate that farm-grown and prepared sunflower-based meals are suitable for feeding young calves.
- University of Zimbabwe Zimbabwe
- University of Zimbabwe Zimbabwe
Nitrogen, Body Weight, Animal Feed, Animals, Suckling, Eating, Feces, Random Allocation, Animals, Helianthus, Cattle, Digestion, Female, Nutritive Value
Nitrogen, Body Weight, Animal Feed, Animals, Suckling, Eating, Feces, Random Allocation, Animals, Helianthus, Cattle, Digestion, Female, Nutritive Value
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