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. 1975;16(2):197-204.
doi: 10.1186/BF03546674.

The effect of parenteral iron supply on hematology, health, growth and meat classification in veal calves

L Möllerberg, T Ehlers, S O Jacobsson, S Johnsson, I Olsson

The effect of parenteral iron supply on hematology, health, growth and meat classification in veal calves

L Möllerberg et al. Acta Vet Scand. 1975.

Abstract
in English, Swedish

Twenty veal calves were fed milk substitute containing 19 mg Fe/kg; ten calves were supplemented with iron in accordance with their requirements and the other 10 were unsupplemented controls. Serum iron (SI), hemoglobin (Hb) and packed cell volume (PCV) were determined at the start of the experiment and then every third week. From 3 weeks after the start to the end of the experiment there were significant differences between SI mean values between treated and untreated calves. In the treated group the Hb mean values were unchanged during the experiment while the untreated group had a significant decrease. The mean PCV values were also decreased. The daily gain was 1.36 g higher per calf in the treated group. The feed consumption per kg gain was 18 g lower and the carcass weight was 4.2 kg higher per calf in the treated group. The points for color and structure of carcass were 2.5 units higher per calf in the untreated group. The incidence of enteritis was less in the treated calves than in the untreated ones.

Tjugo stycken gödkalvar utfodrades med ett mjölkersättningspreparat som innehöll 19 mg Fe/kg. Tio stycken kalvar tillfördes järn enligt behov, de övriga tio användes som kontrollkalvar. Serumjärn, hemoglobin och hematokrit undersöktes vid försökets start och sedan var tredje vecka.

Från tre veckor efter försökets start och till dess slut var det signifikant högre medelvärde för serumjärn i försöksgruppen än i kontrollgruppen. Hemoglobinmedelvärdena var oförändrade i försöksgruppen medan de sjönk signifikant i kontrollgruppen. Hematokritvärdena sjönk också i kontrollgruppen. Den dagliga tillväxten var 136 g högre per kalv i försöksgruppen. Foderkonsumtionen var 18 g lägre och slaktvikten 4,2 kg högre per kalv i försöksgruppen. Poäng för färg och struktur var 2,5 enheter högre per kalv i kontrollgruppen. Frekvensen av enteriter var mindre bland kalvarna i försöksgruppen än bland de obehandlade.

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References

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