Iron metabolism in the veal calf. The availability of different iron compounds

Bremner, I.; Dalgarno, A.

doi:10.1079/bjn19730098

Cited by 37 publications

(17 citation statements)

References 26 publications

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“…Food conversion in the 22 calves fed a normal milk replacer with 5ppm of iron added was 1.71, whereas in the calves fed the milk replacer only it was 1.84. This suggests that the 5ppm extra iron in the diet does improve food conversion, which is contrary to the findings in our experiment with the 16 calves and also to the results of others (BREMNER et al, 1973;BREMNER et al, 1976;WEBSTER et al, 1975). Besides the improvement of food conversion, a clear worsening of meat colour was observed in both experiments.…”

Section: Discussioncontrasting

confidence: 99%

“…The MCV values were rather low in groups I and 11, whereas the MCHC values remained almost constant, which indicates that in all 16 calves a microcytic normochromic anaemia develops as was seen by other workers (BREMNER et al, 1976;WEBSTER et al, 1975). The observation that there was no difference in food conversion between the calves of group I and those of group I1 is in accordance with the literature (BREMNER et al, 1973;BREMNER et al, 1976;WEBSTER et al, 1975). It is striking that the results obtained with the 2 x 22 calves fattened in a different calf house were quite different.…”

Section: Discussionsupporting

confidence: 92%

“…The extra iron did not even prevent a rather low haemoglobin concentration occurring at the end of the fattening period. Although very low haemoglobin concentrations were found, the expected loss of appetite (BREMNER et al, 1973;BREMNER et al, 1976) was not observed.…”

Section: Discussionmentioning

confidence: 82%

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The influence of an extra supply of iron on some blood components and on meat colour at slaughter in fattening veal calves

Abdelrahim

Wensing

Franken

et al. 1983

Zentralblatt für Veterinärmedizin Reihe A

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Summary The effect of adding 5 ppm iron to a commercial milk replacer on food conversion, colour of the meat at slaughter, blood haemoglobin concentration, red blood cell count, plasma iron concentration and total plasma iron binding capacity in 2 sets of veal calves throughout the whole fattening period was studied. The results show that extra iron in the diet of veal calves influenced the colour of the meat at slaughter in a negative way, whereas food conversion was influenced positively. During the last 3 weeks of the fattening period the extra iron in the diet led to an increased plasma iron concentration but not to an increase of blood haemoglobin concentration. Zusammenfassung Einfluß einer zusätzlichen Eisenverabreichung bei Mastkälbern auf einige Blutbestandteile und auf die Fleischfarbe bei der Schlachtung Bei zwei Gruppen von Mastkälbern wurden während der gesamten Mastperiode 5 ppm Eisen einem kommerziellen Milchaustauscher hinzugefügt. Folgende Kriterien wurden ausgewertet: Futterverwertung, Farbe des Fleisches bei der Schlachtung, Blut‐Hämoglobinkonzentration, Erythrozytenzahl, Plasma‐Eisenkonzentration und Gesamtbindungskapazität für Eisen. Die zusätzliche Eisenverabreichung beeinträchtigte die Fleischfarbe, wirkte sich aber positiv auf die Futterverwertung aus. Während der letzten 3 Mastwochen führte die Eisensupplementierung zu einer Zunahme der Plasma‐Eisenkonzentration, jedoch nicht zu einem Anstieg der Bluthämoglobinkonzentration. Résumé Influence d'une supplémentation en fer sur quelques paramètres sanguins et sur la coloration de la viande à l'abattage chez des veaux d'engrais On a ajouté 5 ppm de fer dans un automate à lait du commerce durant toute la période de l'engraissement chez deux groupes de veaux à l'engrais. Les paramètres suivants ont été examinés: consommation, couleur de la viande à l'abattage, concentration de l'hémoglobine sanguine, nombre des érythrocytes, concentration du fer dans le plasma et capacité de liaison totale pour le fer. La supplémentation en fer a influencé la coloration de la viande et a agi de façon positive sur la consommation. L'apport de fer a provoqué une augmentation de la concentration du fer dans le plasma mais pas une augmentation de la concentration de l'hémoglobine dans le sang. Resumen El influjo de un suplemento extra de hierro en terneros de engorde sobre algunos componentes de la sangre y sobre el color de la carne en el momento del faenamiento En dos grupos de terneros de engorde se añadieron durante todo el periodo de cebo 5 ppm de hierro a un reemplazador comercial de la leche. Se evaluaron los criterios siguientes: conversión del pienso, color de la carne durante el faenamiento, concentración de hemoglobina en sangre, cantidad de eritrocitos, concentración de hierro en el plasma y capacidad de fijación total del hierro en el plasma. El hierro aditivo en la dieta de los terneros influía de una manera negativa sobre el color de la carne en el momento del sacrificio, mientras que ejercía un influjo positivo sobre la conversión del pienso. Durante...

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionsupporting

confidence: 92%

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The influence of an extra supply of iron on some blood components and on meat colour at slaughter in fattening veal calves

Abdelrahim

Wensing

Franken

et al. 1983

Zentralblatt für Veterinärmedizin Reihe A

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“…Despite a tendency for phytate P in feces to decrease (P = 0.08) with increasing Fe infusion, the magnitude of the change was small and phytate digestibility was not significantly affected by treatment. Bremner and Dalgarno (1973) observed lower availability of Fe from Fe phytate than from 3 soluble sources (FeSO 4 , ferric citrate, and ferric-EDTA) in calves, with no differences between the 3 soluble Fe sources.…”

Section: Phosphorus Intake and Absorptionmentioning

confidence: 71%

Effect of abomasal ferrous lactate infusion on phosphorus absorption in lactating dairy cows

Feng

Knowlton

Dietrich

et al. 2013

Journal of Dairy Science

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The objective of this study was to evaluate the effect of ferrous lactate infusion on postruminal P absorption in lactating dairy cows. Four ruminally cannulated lactating cows were used in a 4×4 Latin square design with 14 d per period. Cows were fed a basal diet containing 0.39% P, providing 100% of the calculated P requirement. On d 8 to 14 of each period, each cow was infused with 0, 200, 500, or 1,250mg of Fe/d in the form of ferrous lactate solution (ferrous lactate in 1L of double-distilled water) into the abomasum. Infusate was formulated to approximate 0, 2, 5, or 12.5mg of Fe/L in drinking water with 100L of water intake/d. Total fecal collection was conducted in the last 4 d of each period to measure nutrient digestion and excretion. Dry matter intake, milk yield, and milk composition were not affected by treatment. Digestibility of DM, NDF, and nitrogen decreased linearly with increasing ferrous lactate infusion. Infusion of ferrous lactate did not affect intake and digestibility of total P, inorganic P, or phytate P. In lactating cows, P absorption was not negatively influenced by abomasally infused ferrous lactate up to 1,250mg of Fe/d.

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“…Further details have been given by Bremner and Dalgarno (1973a). Further details have been given by Bremner and Dalgarno (1973a).…”

Section: Dietsmentioning

confidence: 99%

Energy exchanges of veal calves fed a high-fat milk replacer diet containing different amounts of iron

Webster¹,

Donnelly²,

Brockway³

et al. 1975

Anim. Sci.

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Link to this article: http://journals.cambridge.org/abstract_S0003356100035029How to cite this article: A. J. F. Webster, H. Donnelly, J. M. Brockway and J. S. Smith (1975). Energy exchanges of veal calves fed a high-fat milk replacer diet containing different amounts of iron. Animal Production, 20, pp 69-75 SUMMARY 1. A total of 33 energy balance trials was conducted with veal calves offered a high-fat milk replacer diet containing 10, 20, 40 or 100 mg iron/kg DM. 2. There were no significant differences in weight gain, food conversion or energy retention between calves receiving 20, 40 or 100 mg iron/kg DM in their diet. Calves receiving only 10 mg iron/kg gained weight and retained energy at significantly lower rates than those in the other groups. 3. The metabolic heat production of calves receiving the liquid diet was greater than that of calves given the same amount of gross energy from a barley diet. The recommended air temperature of about 20°C for veal calf houses is therefore unnecessarily high.

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Iron metabolism in the veal calf. The availability of different iron compounds

Cited by 37 publications

References 26 publications

The influence of an extra supply of iron on some blood components and on meat colour at slaughter in fattening veal calves

The influence of an extra supply of iron on some blood components and on meat colour at slaughter in fattening veal calves

Effect of abomasal ferrous lactate infusion on phosphorus absorption in lactating dairy cows

Energy exchanges of veal calves fed a high-fat milk replacer diet containing different amounts of iron

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