ABSTRACT

Lactation is an important period in dairy animals during which many physiological changes takes place and produced a measureable changes in diagnostic parameters in blood. Stages of lactation also affect the oxidative status of animals. Stress expressed by dairy cattle during lactation is a challenged situation. The present study was aimed to assess the status of oxidants and antioxidants status in Nili Ravi buffaloes and Sahiwal cows during different stages of lactation. Lactating buffaloes (n=30) and cows (n=30) were randomly selected from two different farms and categorized into three stages, stage I (n=10), stage II (n=10) and stage III (n=10). From each stage blood sample were drawn. Melanodialdehyde (MDA) was determined by measuring serum lipid peroxidation (LPO), while serum enzymes were measured by applying standard methodologies and using spectrophotometer (Biosystem BTS-330). Non significantly lower concentration of TAS was found in stages I and stage III of lactation. TOS, SOD and catalase were significantly higher at lactation stage II. MDA and Ceruloplasmin were significantly higher at lactation stage II in buffaloes and lactation stage III in cows. These parameters assist to describe the changes in physiology of animals which is associated with oxidative stress during lactation. Keywords: Oxidative stress, antioxidants, lactation, buffaloes and cows
Publication date: 01/12/2020

https://ijbpas.com/pdf/2020/December/MS_IJBPAS_2020_5316.pdf

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https://doi.org/10.31032/IJBPAS/2020/9.12.5316