STUDY ON THE MILK YIELD APTITUDES OF THE TURCANA SHEEP RAISED IN THE NORTH-EAST SIDE OF THE COUNTRY
C. Pascal, I. Gîlcă, Mihaela Ivancia, R.M. Radu-Rusu, N. Iftimie
Abstract
The researches focused on the assessment of milking capacity of mother ewes on the growing rhythm of the own littered lambs. The biological material belonged to Turcana breed, structured on age periods as, reported to the generations. It resulted, after the researches were finished, that the average milk yield was of 94.234 l during the first 85 days of lactation, at the studied sheep population. The high performance achieved for milk yield confirmed the very good milking capacity of Turcana ewes with straight consequences on the lambs growing speed, right after parturition. The correlation coefficient for the following traits pair - suckled milk quantity and lambs growing speed presented higher values, rp: 0.84 during the 0-15 days age period and rp: 0.79, for the 16-28 days period. The strength of correlation between milk yield and growing speed decreased at rp: 0.46 for the age period of 43-55 days, respectively at rp:0.24 for suckling period comprised between 71 and 85 days.
STUDII PRIVIND POTENTIALUL PENTRU PRODUCTIA DE LAPTE LA OILE TURCANA AFLATE IN CRESTERE IN PARTEA DE NORD-EST A TARII
C. Pascal, I. Gîlcă, Mihaela Ivancia, R.M. Radu-Rusu, N. Iftimie
Rezumat
Cercetarile efectuate au avut ca principal scop evidentierea capacitatii lactogene a oilor mame asupra ritmului ulterior de crestere in greutate a mieilor proprii. Materialul biologic utilizat in cercetare apartine rasei Turcana, structurat pe grupe de varsta in raport cu generatia zootehnica respectiva. In urma cercetarilor si a estimarilor efectuate s-a constatat ca productia medie de lapte realizata, la nivelul populatiei de ovine luata in studiu, este în primele 85 zile de 94,234 l. Performantele bune realizate pentru productia de lapte confirma capacitatea lactogena foarte buna a oilor Turcana, aspect ce permite ca mieii sa inregistreze ritmuri mai bune de crestere imediat dupa parturitie. Coeficientul de corelatie dintre cantitatea de lapte consumata si viteza de crestere a mieilor are valori mai ridicate, rp:0,84 pentru intervalul 0-15 zile si respectiv rp:0,79 pentru intervalul 16-28 zile. Intensitatea legaturii dintre cantitatea de lapte si viteza de crestere a mieilor scade la rp:0,46 pentru intervalul de varsta 43-55 zile si la rp:0,24 pentru perioda de alaptare cuprinsa intre 71 si 85 zile.
