from 01.01.2006 until now
Blagoveshchensk, Blagoveshchensk, Russian Federation
graduate student from 01.01.2023 until now
Blagoveshchensk, Blagoveshchensk, Russian Federation
VAK Russia 4.1.1
VAK Russia 4.1.2
VAK Russia 4.1.3
VAK Russia 4.1.4
VAK Russia 4.1.5
VAK Russia 4.2.2
VAK Russia 4.2.3
VAK Russia 4.2.4
VAK Russia 4.2.5
VAK Russia 4.3.3
VAK Russia 4.3.5
UDC 591.4
CSCSTI 68.41
Russian Classification of Professions by Education 36.06.01
Russian Library and Bibliographic Classification 468
The objective of the study was to identify the most intensive and productive period of duodenal growth in turkeys depending on age by calculating the correlation and regression coefficients. The study involved Hybrid Converter Novo turkeys purchased from farms in the Amur Region. Nine samples were taken from each age group for analysis: 1, 7, 14, 21, 28, 60, 90, and 120 days. A total of 72 birds aged 1 to 120 days participated in the study. Instruments such as rulers, calipers, and precision scales with an accuracy of 0.01 grams were used to study morphometric characteristics. The main parameters measured during the study were the total length, maximum width, and weight of the organ. Biometric methods, including the calculation of correlation and regression coefficients, were used to quantitatively assess the relationship between duodenal weight and body weight. The maximum relative weight of the duodenum is 2.13. The maximum relative growth rate (regression coefficients) of all morphometric parameters of the duodenum in relation to body weight is recorded in the period from 7 to 14 days. The growth of the weight and width of the duodenum demonstrates a very strong positive correlation (r > 0.85) with body weight throughout almost the entire observation period. Temporary desynchronization of the growth of the duodenum length with the overall growth of body weight was revealed on the 28th day (r = 0.14), indicating a period of physiological restructuring. After 60 days, the relative growth rate of all parameters of the duodenum decreases sharply, indicating the transition of the organ to the phase of mature absolute sizes, despite the ongoing active gain in the overall body weight of the turkey. Keywords. Turkey, duodenum, duodenal indices, Hybrid Converter novo, duodenal morphology, morphometry, biometry.
Turkey, duodenum, duodenal indices, Hybrid Converter novo, duodenal morphology, morphometry, and biometry
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