Clinical manifestations of taste distortion in highly productive cows
Abstract
The results of a comprehensive examination of a group (n = 179) of high-yielding cows of the second half of lactation (more than 200 days) with diagnosed pregnancy (80–225 days of pregnancy) during 30 days of visual observation, among which 6 individuals (3.35 %) were found. symptoms of altaphagia (distortion of taste). Analysis of the biochemical profile of blood serum showed the presence of a number of subclinical abnormalities in a number of indicators, namely (in parentheses are the reference values): Ca/P – 0.92 units (1.1–1.6); total protein – 50.52 g/l (70–85); albumin/globulin – 3.63 units (0.6–1.3); ALT – 35.32 g/l (10–30); AST – 97.32 g/l (10–50); creatinine – 186.10 μmol/l (80–130); alkaline phosphatase – 323.38 units (100–200); urea – 5.08 mmol/l (3.5–6.0). Due to the fact that the active livestock of the dairy complex was provided with fodder base, timely addition of optimized according to modern standards complete mixed diet with 4 % mineral premix, the main causes of biochemical metabolic disorders can be considered dysfunction of intestinal microbiota, digestive and protective functions. of the mucous membrane due to chronic latent inflammatory processes, which was confirmed by the results of the assessment of feed transit (40.09 % of the remains of the daily diet of cows remained after washing of manure samples, which differed in a significant amount of undigested feed components and the inclusion of exfoliated necrotic particles of the mucous membrane). The latent course and accumulation of alimentary pathologies of the digestive tract contributed to the formation of a negative background for the symptoms of endogenous hunger in cows, manifested by signs of altrophagia, which were only clinical and ethological signals of chronic metabolic disorders in many high-yielding lactation groups. Given the importance of maintaining a high physiological status of dairy cows for profitable dairy production, the need to continue research to study the ethological signals of animals remains relevant to find effective means of preventing foodborne illness, including normoflorization of digestive mucosa.
Keywords
