Vet Med - Czech, 2023, 68(6):238-245 | DOI: 10.17221/18/2023-VETMED

Incidence of aflatoxin M1 in cows’ milk in Pakistan, effects on milk quality and evaluation of therapeutic management in dairy animalsOriginal Paper

I Ullah1, A Nasir1, M Kashif1, A Sikandar ORCID...2, M Sajid3, M Adil2, A Rehman3, MU Iqbal4, H Ullah5
1 Department of Clinical Sciences, Sub-Campus Jhang, University of Veterinary and Animal Sciences (UVAS), Lahore, Pakistan
2 Department of Basic Sciences, Sub-Campus Jhang UVAS, Lahore, Pakistan
3 Department of Pathobiology, Sub-Campus Jhang UVAS, Lahore, Pakistan
4 Livestock and Dairy Development Department, Government of Punjab, Pakistan
5 Faculty of Veterinary and Animal Sciences, Gomal University, D. I. Khan, Pakistan

The present study was aimed at measuring the concentration of aflatoxin M1 (AFM1) in the milk of Holstein Friesian cows, its effect on the milk quality and seasonal trends, as well as to investigate the efficacy of a commercial clay-based toxin binder. For this purpose, milk samples from dairy cows (n = 72) were collected and assayed for AFM1 before employing a clay-based toxin binder. The milk samples (n = 72) were collected from selected animals, revealing that 69.4% of the milk samples had AFM1 levels above the United States permissible limit (0.5 µg/kg). The incidence of AFM1 in milk during the winter and summer was 82.5% and 53.1%, respectively. Owing to the presence of AFM1, the level of milk fat, solids-not-fat, and protein were found to be low. Subsequently, the affected animals were divided into two groups, i.e., AFM1 positive control (n = 10) and the experimental group (n = 40). The experimental group of animals were fed the clay-based toxin binder at 25 g/animal/day. A progressive decrease of 19.8% in the AFM1 levels was observed on day 4 and on day 7 (53.6%) in the treatment group. Furthermore, the fat, solids-non-fat and protein increased significantly in the milk. In conclusion, a high level of AFM1 contamination occurs in the milk in Pakistan, affecting the quality of the milk production. Clay-based toxin binders may be used to ensure the milk quality and to protect the animal and consumer health.

Keywords: dairy animals; mycotoxin; toxin binder; wholesomeness of milk season

Received: February 12, 2023; Revised: May 19, 2023; Accepted: June 1, 2023; Prepublished online: June 21, 2023; Published: June 30, 2023  Show citation

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Ullah I, Nasir A, Kashif M, Sikandar A, Sajid M, Adil M, et al.. Incidence of aflatoxin M1 in cows’ milk in Pakistan, effects on milk quality and evaluation of therapeutic management in dairy animals. Vet Med-Czech. 2023;68(6):238-245. doi: 10.17221/18/2023-VETMED.
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