An attempt at analysing the selected traits of body conformation, growth, performance and genetic structure of Lithuanian native Zemaitukai horse, the breed being preserved from extinction

• Autorzy: Macijauskiene V , Juras R.
• Języki publikacji: EN

Abstrakty

EN

Over the last 50 years the traits of valuable indigenous Lithuanian Žemaitukai horse have not been investigated and during the last decade the breed became on the verge of extinction. Recently certain measures were undertaken to preserve the breed, evaluate its present characteristics and compare them with those reported earlier. Body size and conformation traits of present-day Žemaitukai horse (ŽH) were found corresponding or similar to those of the ancient type, showing that many valuable characteristics of the breed are retained. Mares’ milk yield and composition were evaluated, as well as development of foals based on body dimensions. Genetic variation, genetic structure as well as relationship between the lines and families of ŽH were studied using blood typing and electrophoretic analysis of serum proteins. Gene frequencies are presented at six blood group (A, D, C, Q, P, K) and five protein ( Al, Es, Gc, Xk, Tf) loci. The genetic diversity within blood groups and serum proteins in ŽH kept in a closed population showed that out of eleven genetic systems examined, six were polymorphic. This is especially so for the A and D, as well as Es and Tf systems. The distribution of allele frequencies varied between the lines and families.

PL

Zestawiono dostępne dane o liniach i rodzinach koni żmudzkiej rasy Žemaitukai (mierzyny), ich pokroju, mleczności i składzie mleka klaczy oraz o strukturze genetycznej. Polimorfizm genetyczny scharakteryzowano na podstawie sześciu układów grupowych krwi i pięciu białek surowicy krwi. Największy polimorfizm stwierdzono w obrębie układów A i D grup krwi oraz Es i Tf surowicy krwi.

Słowa kluczowe

EN

Zemaitukas breed; horse; genetic structure; genetic polymorphism; body conformation; breeding line; breed protection; breed characteristics; Lithuanian breed

• Wydawca: -
• Czasopismo: Animal Science Papers and Reports
• Rocznik: 2003
• Tom: 21
• Numer: 1
• Opis fizyczny: p.35-46

Twórcy

autor

Macijauskiene V

• Lithuanian Institute of Animal Science, R.Zebenkos 12, Baisogala, LT-5125, Radviliskio raj., Lithuania

autor

Juras R.

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