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Tierarztl Prax Ausg G Grosstiere Nutztiere 2024; 52(01): 16-24
DOI: 10.1055/a-2220-1645
Original Article

Effects of a commercial feed additive used for prophylactic purposes on health and blood parameters in neonatal calves

Auswirkungen eines prophylaktisch eingesetzten kommerziellen Futtermittelzusatzes auf die Gesundheit und einige Blutparameter von Tränkekälbern
Samet Köse
1   Ankara University, Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases, Ankara, Turkey
,
Adnan Şehu
1   Ankara University, Faculty of Veterinary Medicine, Department of Animal Nutrition and Nutritional Diseases, Ankara, Turkey
› Author Affiliations Fundings This study received no grants from any funding agency or sector.
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Abstract

Objective Neonatal calf diarrhea is commonly observed worldwide and leads to significant economic losses. The objective of this study was to investigate the effect of a feed additive supplemented with milk on the incidence of diarrhea days with scours, fecal score, average daily gain, fecal bacterial concentration, and blood parameters in neonatal calves.

Materials and methods Forty Holstein-Friesian crossbreed (HF x Montbeliarde) calves were divided into control (C) and experimental (E) groups, each containing 20 calves. The study was conducted over a period of 10 days. The control group was fed whole milk twice daily. The experimental group was fed the same whole milk supplemented with feed additive once in the morning at 100 g/calf/day.

Results At the end of the study, it was determined that the feed additive in the milk affected fecal score, blood pH, pCO2, cHCO3 -, K+, cHgb, and plasma glucose levels (p<0.05), but did not affect the incidence of diarrhea, average daily gain, days with scours, and other blood parameters (p>0.05). Rotavirus was the main pathogen found in the fecal samples of calves with diarrhea. Higher concentrations of Escherichia coli, Salmonella spp., and Clostridium perfringens were detected in the feces of experimental calves (p<0.001).

Conclusion and clinical relevance The findings indicate that this feed additive improves fecal score, some blood parameters, and fecal concentration of pathogenic bacteria in feces. Additionally, it shows a favorable effect on both diarrhea incidence and the days with scours, suggesting its potential efficacy in preventing diarrhea in neonatal calves. Preventing diarrhea during this crucial stage of life can contribute to the health and productivity of animals and play a role in preventing antibiotic resistance by reducing reliance on antibiotics.

Zusammenfassung

Gegenstand und Ziel Durchfall bei neugeborenen Kälbern tritt weltweit häufig auf und verursacht erhebliche wirtschaftliche Verluste. Das Ziel dieser Studie ist es, die Auswirkungen des prophylaktischen Einsatzes eines Futtermittelzusatzes auf die Inzidenz von Durchfalltagen, die Kotbewertung, die durchschnittliche tägliche Zunahme, die Konzentration von Kotbakterien und einige Blutparameter bei neugeborenen Kälbern zu untersuchen.

Material und Methoden Insgesamt wurden 40 Holstein-Friesian-Kreuzungskälber (HF x Montbeliarde) in eine Kontrollgruppe (C) und eine Versuchsgruppe (E) aufgeteilt, jeweils mit 20 Kälbern. Über 10 Tage erhielt die Kontrollgruppe zweimal täglich Vollmilch. Über dieselbe Zeit erhielt die Versuchsgruppe dieselbe Vollmilch mit einem Futtermittelzusatz, der einmal täglich morgens mit 100 g/Kalb der Milch zugegeben wurde.

Ergebnisse Der pH-Wert, der Kohlendioxidpartialdruck, die Bikarbonat-, Kalium- und Hämolobinkonzentration des Blutes sowie der Plasmaglukose-Spiegel und die Kotbewertung unterschieden sich statistisch signifikant zwischen den Kälbern der Gruppe E und den Kälbern der Gruppe C (p<0,05). Keinen Einfluss hatte die Zugabe auf die Inzidenz von Durchfall, die Tage mit Durchfall, durchschnittliche tägliche Zunahme oder andere Blutparameter (p>0,05). Rotavirus war der Haupterreger, der in den Kotproben von erkrankten Kälbern nachgewiesen wurde. Im Kot der Kälber aus der Versuchsgruppe wurde eine höhere Konzentration von Escherichia coli, Salmonella spp. und Clostridium perfringens festgestellt (p<0,001).

Schlussfolgerung und klinische Relevanz Die Ergebnisse legen nahe, dass der untersuchte Futtermittelzusatz die Kotkonsistenz, einige Blutparameter und die Konzentration pathogener Bakterien im Kot verbessert. Darüber hinaus zeigt der Einsatz des Futtermittelzusatzes eine positive Wirkung auf die Inzidenz von Durchfall und die Tage mit Durchfall, was auf dessen potenzielle Wirksamkeit bei der Verhinderung von Durchfall bei neugeborenen Kälbern hinweist. Die Vermeidung von Durchfall während dieser kritischen Lebensphase kann zu gesünderen und leistungsfähigeren Tieren führen und durch die Reduktion des Einsatzes von Antibiotika helfen, Antibiotikaresistenzen zu verhindern.

Key words

Feed additive - calf - diarrhea - blood parameters - fecal score

Schlüsselwörter

Futtermittelzusatz - Kalb - Durchfall - Blutparameter - Kotbewertung


Publication History

Received: 13 July 2023

Accepted: 21 November 2023

Article published online:
27 February 2024

© 2024. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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