Authors:
V. A. PORUBLEV, doctor of biological sciences, professor,
T. I. BOTASHEVA, postgraduate student,
Stavropol State Agrarian University (12 Zootehnicheskij l., 355000, Stavropol; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it., This email address is being protected from spambots. You need JavaScript enabled to view it.).
Abstract. With use of modern morphometric methods of a research at sheep of the North Caucasian breed of four age groups (newborn, monthly, four-month and 18-month) the structure, topography and age changes of morphometric indicators of extraorgan veins of a jejunum gut have been studied. It is established that the most intensive increase in the maximum length the jejunal veins of sheep is observed during postnatal development from monthly to four-month age, the minimum length the jejunal veins with four-month to 18-month age. The most intensive increase in diameter the jejuna veins of sheep is observed during postnatal development from four-month to 18-month age. In a gleam the jejunal veins on all extent two-fold valves meet their number at newborn animals has made 0,60 ± 1,20, at monthly age – 1,20 ± 0,80, in four-months – 1,80 ± 0,80, at 18-month – 2,20 ± 0,80. The valvate index was equal at newborn animals – 0,14 ± 0,07, at monthly – 0,23 ± 0,03, at four-month – 0,29 ± 0,02, at 18-month – 0,30 ± 0,02. The most intensive growth of the length of the common root of the jejunal veins in sheep is observed in the period from a month to four-month. The most intensive increase in the diameter of the common root of the jejunal veins in sheep is noted between the time of birth and the month of age. In the cavity of the common root of the jejunal veins, mainly in the middle of its segment there are two-leaf valves. Their number in newborn animals was 1.80 ± 0.80, at a monthly age of 2.60 ± 1.20, in a four-month period – 3.20 ± 0.80, in 18-month-old animals – 4.20 ± 0.80. The valvate index was equal to 0.12 ± 0.00 for newborns, 0.12 ± 0.00 for monthly animals, 0.10 ± 0.00 for four-month animals, 0.10 ± 0.00 for 18-month.
Keywords: vein, intestine, jejunum, extraorgan, valve, sheep, North Caucasian breed.
