The association between metabolic profile indices, clinical parameters, and ultrasound measurement of backfat thickness during the periparturient period of dairy cows
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This study aimed to evaluate clinical and biochemical changes in dairy cows during periparturient period. It was carried out on 38 multiparous Holstein/Fersian crossbreed dairy cows 3–11 years old. Using ultrasonography for measurement backfat thickness (BFT) for detection of the energy deficit. BFT on dairy cattle is used to monitor changes in subcutaneous fat thickness which represent changes in energy stores. On the basis of clinical examination and assessment of BHBA concentration in blood, cows were classified to four groups, control healthy cows (C = 16), subclinical ketosis (SCK = 10), cows with retained placenta (RP = 6), and clinical mastitis (CM = 6). BFT showed a significant decrease (p < 0.05) after parturition in all diseased groups compared with healthy. The plasma level of NEFA and BHBA showed a significant increase (p < 0.05) at 2 weeks a.p (antepartum) and 2 weeks p.p (postpartum) in RP and SCK than other groups, respectively. The plasma level of glucose showed a significant decrease (p < 0.05) at 2 weeks p.p in SCK group. The plasma level of insulin showed a significant decrease (p < 0.05) at 4 weeks a.p in RP group and in all groups after parturition. It could be concluded that production diseases induced clinical, biochemical, and subcutaneous fat changes in dairy cows.
KeywordsPeriparturient Backfat thickness Holstein/Fersian Crossbreed Subclinical ketosis Retained placenta Mastitis
The authors would like to thank the staff members of Internal Veterinary Medicine Division, Animal Medicine Department, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt, for their help and cooperation during this study.
Compliance with ethical standards
All procedures involving animals were done in accordance with the ethical standards of Assiut University, where this study was done. All animals were handled according to the standard guidelines for care and use of animals. This article does not include any studies with human participants performed by any of the authors.
Conflict of interest
The authors declare that they have no conflict of interest.
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