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2021, vol. 37, br. 4, str. 255-262
Uticaj godine, sezone, pola i tipa jagnjenja na rane performanse MIS jagnjadi
aInstitut za stočarstvo, Beograd-Zemun
bUniverzitet u Beogradu, Poljoprivredni fakultet
cInstitut za primenu nauke u poljoprivredi, Beograd

e-adresabcekic@istocar.bg.ac.rs
Projekat:
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (institucija: Institut za stočarstvo, Beograd-Zemun) (MPNTR - 451-03-68/2020-14/200022)

Ključne reči: osobine porasta; ovce; sitni preživari; prirasti
Sažetak
S obzirom na to da ovčarstvo ima važnu ulogu u poljoprivredi Srbije, produktivnost jagnjadi je od izuzetnog značaja. Cilj istraživanja je bio da se ispita uticaj godine, sezone jagnjenja, pola i tipa rođenja na produktivne parametre jagnjadi MIS rase. Podaci o životinjama (datum rođenja, tip rođenja, pol, telesna masa na rođenju -BW0, telesna masa posle 30 dana - BW30 i telesna masa nakon 60 dana - BW60) su dobijeni kontrolom proizvodnih parametara održanih od 2011. do 2020. godine, na uzorku od 1592 jagnjadi. Prosečan dnevni prirast od rođenja do 30 dana (ADG1), od 30 do 60 dana (ADG2), i od rođenja do 60 dana (ADG3), izračunat je i uključen u analizu. Kalendarska godina je podeljena na četiri godišnja doba (zima, proleće, leto i jesen), a svako godišnje doba sastoji se od 3 meseca. Prosečna telesna masa (± standardna devijacija) pri rođenju, posle 30 i 60 dana bila je 4.41 kg (± 0.99), 14.11 kg (± 2.80), 24.05 kg (± 3.86), redom. Prosečni dnevni prirasti iznosili su 319.87 g (± 74.97), 329.84 g (± 70.90) and 324.99 g (± 55.48) za ADG1, ADG2 i ADG3, redom. Tip rođenja i pol jagnjadi značajno su uticali na sve ispitivane osobine (p < 0.01). Godina rođenja imala je veoma značajan uticaj (p < 0.01) na BW30, na ADG1 i ADG2, dok je sezona jagnjenja značajno (p < 0.05) uticala na BW60, ADG2 i ADG3. Na osnovu rezultata može se zaključiti da su tip i pol rođenja imali najjače efekti u ranim produktivnim parametrima jagnjadi.
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.2298/BAH2104255C
primljen: 13.08.2021.
prihvaćen: 02.11.2021.
objavljen u SCIndeksu: 12.01.2022.
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