C.A. Sava

EVALUATION OF MORPHOLOGICAL AND REPRODUCTIVE PARAMETERS IN TIGAIA SHEEP BREED OF RUSTY VARIETY

C.A. Sava, C. Pascal, Roxana Zaharia, N. Zaharia, T.S. Atanasiu

Abstract
The purpose of this paper is to make an assessment on the main parameters and on some reproductive aspects of morphology young and adulde sheep, belonging to race Tigaia of rusty variety. The study was conducted on a total of 130 adult sheep and 127 lambs lambed in the spring of 2010. Working methods used are specific to this type of research and refers to the weighing and body measurements, free assessments and statistical calculations. Analysis of reproductive indices show that fecundity is 95%, prolificacy 105% - 115% and 97.6% fertility. Values obtained from the measurements bodily adult animals show that the studied sheep, is characterized by a pear-shaped body form, with height 59.9 cm, rump height 62.84 cm, chest depth 28.77 cm having an average body weight 49.6 kg. Regarding the mean body size in young sheep aged 28 days, they indicate that, in the first period of life youth grow mainly in length and height and then in width. In this study, it can be concluded that Tigaia sheep bred of rusty variety, is characterized by a dolicomorf body form, with a relatively small body development, if we refer to body weight. Evaluation of breeding indices show a very good fecundity, but a reduced fecundity compared to other breeds.

Key words: sheep, morphology, reproductive parameters


EVALUAREA PARAMETRILOR MORFOLOGICI ŞI REPRODUCTIVI LA OVINELE DE RASĂ ŢIGAIE VARIETATEA RUGINIE

C.A. Sava, C. Pascal, Roxana Zaharia, N. Zaharia, T.S. Atanasiu

Rezumat
Scopul acestei lucrari este acela de a face o evaluare asupra principalilor parametri reproductivi si asupra cātorva aspecte legate de morfologia tineretului si a ovinelor adulde ce apartin rasei Tigaie varietatea ruginie. Studiul s-a efectuat pe un numar de 130 de oi adulte si 127 de miei fatati īn primīavara anului 2010. Metodele de lucru folosite sunt specifice acestui tip de cercetare si se refera la cāntariri si masuratori corporale, aprecieri libere si calcule statistice. Analiza indicilor reproductivi arata faptul ca fecunditatea specifica este de 95%, prolificitatea 105% - 115% si fertilitatea de 97,6%. Valorile obtinute īn urma efectuarii masuratorilor corporale pe animalele adulte arata faptul ca, ovinele luate in studiu se caracterizeaza printr-un format corporal piriform, cu talia 59,9 cm, īnaltimea la crupa 62,84 cm, adāncimea pieptului 28,77 cm, avānd o greutate corporala medie de 49,6 kg. Referitor la valorile medii ale dimensiunilor corporale la tineretului ovin īn vārsta de 28 de zile, acestea indica faptul ca, īn prima perioada a vietii tineretul creste preponderent īn lungime si īnaltime si apoi īn largime. Īn urma acestui studiu se poate concluziona ca ovinele de rasa Tigaie varietatea ruginie se caracterizeaza printr-un format corporal dolicomorf, cu o dezvoltare corporala relativ redusa, daca e sa ne referim la greutatea corporala. Evaluarea indicilor de reproductie arata o fecunditate specifica foarte buna, dar o prolificitate redusa īn comparatie cu alte rase.

Cuvinte cheie: ovine, morfologie, parametri reproductivi