Untersuchungen zur Zinkkonzentration in unterschiedlichen Probenmedien von Milchkühen und Ableitung von Referenzwerten

Heavy metal pollution has thoroughly worldwide apprehensions due to the instantaneous growth of industries. Farming regions are irrigated mainly with wastewater which contains both municipal and industrial emancipations.Therefore, three sites irrigated with ground, canal and municipal-wastewater in the District Jhang were selected to determine the zinc accumulation and its transfer in the soil, plant and animal food-chain. Soil, forage and animal samples of cow, buffalo and sheep were selected from each site. Various pollution indices were also measured to assess the zinc exposure to grazing animals. Zinc concentration was ranged as 18.85-35.59mg/kg in the soil, 26.42-42.67 mg/kg in the forage and 0.982-2.85mg/kg in the animal samples. Investigated zinc concentration in soil and forages was found to be within the recommended WHO/FAO limits but blood samples exceeding the standards of NRC ( 2007). Maximum level of pollution load index (0.427-0.805mg/kg) and enrichment factor (0.373-0.894 mg/kg) for zinc was noticed upon waste water irrigation. Daily intake (0.039 to 0.082 mg/kg/day) and health risk index (0.130 to 0.275 mg/kg/day) of zinc metal was higher in the buffaloes that feed on waste water irrigated forages. Bio-concentration factor (0.840 to 2.01mg/kg) for soil-forage was >1 represented that these plants accumulated the zinc concentration into their tissues and raised health issues in grazing animals on consumption of waste water contaminated forages. Overall ndings of this study, suggested that animal herds should be monitored periodically to devise preventive measures regarding the toxic level of heavy metals availability to livestock.

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Bioaccumulation and transfer of zinc in soil plant and animal system: a health risk assessment for the grazing animals

Chen

Muhammad

Khan

et al. 2021

Environ Sci Pollut Res

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The Reference Values of Hair Content of Trace Elements in Dairy Cows of Holstein Breed

Miroshnikov

Skalny

Zavyalov

et al. 2019

Biol Trace Elem Res

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Parenteral Zinc Supplementation Increases Pregnancy Rates in Beef Cows

Anchordoquy

Galarza

et al. 2019

Biol Trace Elem Res

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Untersuchungen zur Zinkkonzentration in unterschiedlichen Probenmedien von Milchkühen und Ableitung von Referenzwerten

Abstract: When assessing the zinc supply, different reference values have to be applied for the different sample media and stages of lactation. For repeated analysis to evaluate changes in zinc nutritional status, the same sample medium and stage of lactation should be used.

Cited by 7 publications

References 20 publications

Bioaccumulation and transfer of zinc in soil plant and animal system: a health risk assessment for the grazing animals

Bioaccumulation and transfer of zinc in soil plant and animal system: a health risk assessment for the grazing animals

The Reference Values of Hair Content of Trace Elements in Dairy Cows of Holstein Breed

Parenteral Zinc Supplementation Increases Pregnancy Rates in Beef Cows

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