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2020, vol. 36, br. 3, str. 271-281
Kvantitativno genetska analiza variabilnosti i povezanosti mase tela jagnjadi u autohtonoj populaciji pirotske ovce
aInstitut za stočarstvo, Beograd-Zemun
bUniverzitet u Prištini sa privremenim sedištem u Kosovskoj Mitrovici, Poljoprivredni fakultet, Lešak

e-adresamilanppet@yahoo.com
Projekat:
451-03-68/2020-14

Ključne reči: indigenous; pirot sheep; body weight; correlation; regression
Sažetak
Kvantitativno genetska analiza variabilnosti i povezanosti mase tela jagnjadi u autohtonoj populaciji pirotske ovce pokazuje da genetski potencijal podmlatka karakteriše visoka varijabilnost koja je veoma pogodna za selekciju na veću masu tela. Postoji visoka i veoma značajna povezanost između telesne mase janjadi sa 30 i 60 dana (.969 **) i mase sa 30 i 90 dana (.914 **). Takođe postoji vrlo značajna povezanost između mase janjadi starosti 60 i 90 dana (.904 **). Iz našeg istraživanja možemo videti da je prvi mesec života jagnjeta veoma važan za dalji razvoj tela. Postoji različit nivo korelacije između težine jagnjadi. To NAM daje ideju da kažemo, da su mnogi paragenetski faktori ključni za rast janjadi od rođenja do odbijanja. Koeficijent višestruke korelacije (R2) iznosi 0,845 što znači da je 8,45% odstupanja telesne mase jagnjadi u toku 90 dana određeno varijancijom skupa prediktorskih varijabli (PI-60, 30, 1). Svako povećanje telesne mase janjeta tokom posmatranih perioda povezano je sa povećanjem rezultata zavisno promenljive PI90. Konkretno, svako povećanje telesne mase janjetine pri rođenju za 1 kg povezano je sa povećanjem telesne mase janjadi od 90 dana za 0,238 kg. Može se dati preporuka stručnjacima i farmerima da kod kreiranja odgajivačkih programa za ovu populaciju treba ozbiljno uzeti u obzir paragenetske faktore.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.2298/BAH2003271P
objavljen u SCIndeksu: 09.10.2020.
Creative Commons License 4.0

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