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Study on cadmium associated microscopic lesions in cattle and buffaloes Gumasta Poornima1, Dubey Amita1,*, Swamy Madhu1, Verma Yamini1 1Department of Veterinary Pathology, College of Veterinary Science and Animal Husbandry, Jabalpur-482001, Madhya Pradesh *Corresponding author: e-mail: amiabhishek@rediffmail.com
Abstract Histopathological evaluation of visceral organs of cattle and buffaloes were conducted with reference to tissue cadmium (Cd) concentration. Total 62 animals reared near industrial area of Jabalpur city were subjected for detailed post-mortem examination and tissues were collected for cadmium detection and histopathological examination. Based on inductively coupled plasma optical emission spectroscopy (ICP-OES) detected concentration, samples were divided into 3 groups. Majority of tissue samples had Cd level in the range of 0–1 ppm. Liver (5%), kidney (8%) and lung (13%) tissues had Cd level >2 ppm and were considered as high risk group. Histopathological examination of tissues from high risk group showed prominent vascular, degenerative and necrotic changes in liver, kidney and lung tissues. Top Keywords Buffalo, Cadmium, Cattle, Histopathology, Toxicity. Top | Figures | Fig. 1.: Pitted kidney of a cattle (3.949 ppm cadmium level)
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| | Fig. 2.: Buffalo Liver: Severe congestion in sinusoidal spaces (3.415 ppm of cadmium level). H&E ×400
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| | Fig. 3.: Cattle Kidney: Loss of brush border with dilated tubules (3.512 ppm of cadmium level). H&E ×400.
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| | Fig. 4.: Cattle Kidney: Fibrosis and glomerulosclerosis (3.949 ppm of cadmium level). Massan‘s Trichrome x100
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| | Fig. 5.: Cattle Lung: Congestion (2.533 ppm of cadmium level). H&E ×100
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| | Fig. 6.: Buffalo Lung: Hemosiderosis (3.134 ppm of cadmium). Modified Mallory x400.
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Table | Table 1.: Mean cadmium concentration (ppm) in tissues of bovines (Mean ± SE)
| | Groups | Tissue Cadmium Concentration (ppm) | | Liver | Kidneys | Lungs | | n | Mean±SE | n | Mean±SE | n | Mean±SE | | Normal (0–1 ppm) | 41 (66%) | 0.280a±0.027 | 40 (65%) | 0.286a±0.022 | 46 (74%) | 0.281a±0.038 | | Low risk (1–2 ppm) | 16 (26%) | 1.423b±0.070 | 14 (22%) | 1.565b±0.112 | 13 (21%) | 1.370b±0.084 | | High risk (>2 ppm) | 5 (08%) | 2.963c±0.309 | 8 (13%) | 3.082c±0.208 | 3 (05%) | 2.616c±0.278 |
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| Means with different superscripts in column differed significantly (P<0.01). | |
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