I. Buzu


ELITE TYPE OF SHEEP OF MOLDAVIAN TSIGAIE OF ALEXANDERFELD

I. Buzu, O. Masner, P. Liutcanov

Abstract
The purpose of research - creating a new type of sheep Tsigaie which would ensure a high production of wool-meat-milk. It was used the method of intrarasial crossing with sheep breed of Tsigaie of indigenous type (mother base) with intrarasial rams of Crimean Tsigaie and Tsigaie Priazov. After five levels was created a sheep population named new type of Moldovan Tsigaie of Alexanderfeld with productive capacity much higher then indigenous sheep type of tsigaie, exceeding the standard requirements for wool production with 46.8%, body weight with 32%, milk production with 57%. The created population has a specific genotype with a high frequency of blood antigens Cb, II, Bb, Aa, Ca and Ma. Genealogical structure of the new type of sheep include two elite lines.

Key words: type, sheep, wool, meat, milk

TIP DE ELITA DE OVINE TIGAIE MOLDOVENEASCA DE ALEXANDERFELD

I. Buzu, O. Masner, P. Liutcanov

Rezumat
Scopul cercetarilor - crearea unui tip nou de ovine Tigaie care ar asigura o productivitate īnalta, multilaterala de līna-carne-lapte. S-a utilizat metoda de crestere prin īncrucisare a ovinelor de rasa Tigaie de tip indigen, pentru līna si lapte, cu cele din tipurile intrarasiale Tigaie de Crimeea si Tigaie Priazov. La etapele initiale s-au folosit alternativ berbeci amelioratori din tipurile līna-carne si carne-līna la īncrucisarile „de reproducere” si „de infuzie”. Ulterior s-a practicat cresterea „īn sine” a genotipurilor de tip solicitat cu aplicarea selectiei directionate progresive dupa trei caractere principale: productia de līna, masa corporala (productia de carne) si productia de lapte. Īn rezultat a fost creata o populatie de ovine de tip nou Tigaie Moldovenesc de Alexanderfeld, cu līna alba semifina īn forma de cojoc. Productia de līna bruta la berbeci constituie 6,0-8,0 kg, la oi – 4,5-5,5 kg, cu lungimea medie 12,0 si, respectiv, 9,0 cm, calitatea dupa sistemul Bradford este de 46-50 si, respectiv, 48-56. Masa corporala a berbecilor reproducatori constituie 80-100 kg, iar a oilor – 50-55 kg, prolificitatea constituie 110-125%. Productia de lapte a oilor - 100-120 kg. Ovinele depasesc cerintele standardului dupa productia de līna cu 46,8 %, dupa greutatea corporala cu 32 % , dupa productia de lapte cu 57 %. Populatia ovinelor are o frecventa īnalta a antigenelor Cb, II, Bb, Aa, Ca si Ma. Structura genealogica a acestui tip cuprinde doua linii de elita.

Cuvinte cheie: tip, ovine, līna, carne, lapte