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Evaluation of breeding values of bulls for somatic cell count in milk
Ocena oplemenjivačke vrednosti bikova za broj somatskih ćelija u mleku
dc.creator | Radinović, M. | |
dc.creator | Trivunović, Snežana | |
dc.creator | Kučević, Denis | |
dc.creator | Djedović, Radica | |
dc.creator | Bogdanović, Vladan | |
dc.date.accessioned | 2020-12-17T20:00:06Z | |
dc.date.available | 2020-12-17T20:00:06Z | |
dc.date.issued | 2011 | |
dc.identifier.issn | 1450-9156 | |
dc.identifier.uri | http://aspace.agrif.bg.ac.rs/handle/123456789/2471 | |
dc.description.abstract | The incidence of subclinical and clinical mastitis in the mammary gland produces variety of defensive factors were nuclear leukocytes, lymphocytes and macrophages play an important role and they are marked as somatic cells. Somatic cell count depends on the type of pathogen and stage of infection. Increased number of somatic cells in milk occurs as a result of lesions in the mammary gland. Studies have shown that the somatic cells count is genetically predisposed. Although the heritability of this trait is low, using modern methods and the proper selection of work it is possible to achieve some progress. Therefore it is necessary to the selection of bulls for somatic cells, on the basis of somatic cells in milk of daughters. Data on milk yield and somatic cell count in milk of 247 cows Holstein Friesian and Simmental breed from Vojvodina province, were used to analyze the evaluation of breeding values for somatic cells in milk Average values and variability of somatic cells, milk yield, milk fat yield and protein and content of milk fat and protein were determined. The average number of somatic cells was 317 000 per ml of milk, with high variability. Average milk yield of 7 634kg with an average content and yield of milk fat from 3.74% to 285.69 kg and the average protein content and yield of 3.15% and 237.15 kg were determined. Assessment of breeding values was calculated using BLUP model of father, high variability in the assessment of bulls was found. Getting more accurate breeding values is possible using the Animal Model. | en |
dc.description.abstract | Kod pojave subkliničkog i kliničkog mastitisa mlečna žlezda produkuje mnoštvo odbrambenih faktora od kojih značajnu ulogu imaju polimorfo nuklearni leukociti, limfociti i makrofage koje označavamo kao somatske ćelije. Broj somatskih ćelija zavisi od vrste uzročnika i stadijuma infekcije. Povećan broj somatskih ćelija u mleku javlja se kao posledica lezija na mlečnoj žlezdi. Istraživanja su pokazala da je broj somatskih ćelija genetski predisponiran. Iako je heritabilnost za ovu osobinu niska, uz pomoć savremenih metoda i pravilnog selekcijskog rada moguće je postići određeni genetski napredak. Zbog toga je potrebno vršiti selekciju bikova za broj somatskih ćelija i to na osnovu broja somatskih ćelija u mleku ćerki. Podaci o mlečnosti i broju somatskih ćelija u mleku kod 247 krava holštajn-frizijske i simentalske rase sa teritorije Vojvodine, korišćeni su za analizu ocene oplemenjivačke vrednosti za broj somatskih ćelija u mleku krava. Izračunate su prosečne vrednosti i varijabilnost broja somatskih ćelija, prinosa mleka, prinosa mlečne masti i proteina i sadržaja mlečne masti i proteina. Prosečan broj somatskih ćelija u ml iznosio je 317 000, sa velikom varijabilnošću. Utvrđen je prosečan prinos mleka od 7634 kg uz prosečan sadržaj i prinos mlečne masti od 3,74% i 285,69kg i prosečan sadržaj i prinos proteina od 3,15% i 237,15 kg. Ocena oplemenjivačke vrednosti je izračunata primenom BLUP modela oca, utvrđena je velika varijabilnost u oceni priplodnjaka. Dobijanje preciznije oplemenjivačke vrednosti moguće je primenom Animal Modela. | sr |
dc.publisher | Institut za stočarstvo, Beograd | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/31086/RS// | |
dc.rights | openAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Biotechnology in Animal Husbandry | |
dc.subject | somatic cell count | en |
dc.subject | evaluation of breeding values | en |
dc.subject | milk | en |
dc.title | Evaluation of breeding values of bulls for somatic cell count in milk | en |
dc.title | Ocena oplemenjivačke vrednosti bikova za broj somatskih ćelija u mleku | sr |
dc.type | article | |
dc.rights.license | BY | |
dc.citation.epage | 1066 | |
dc.citation.issue | 3 | |
dc.citation.other | 27(3): 1059-1066 | |
dc.citation.rank | M51 | |
dc.citation.spage | 1059 | |
dc.citation.volume | 27 | |
dc.identifier.doi | 10.2298/BAH1103059R | |
dc.identifier.fulltext | http://aspace.agrif.bg.ac.rs/bitstream/id/1244/2468.pdf | |
dc.type.version | publishedVersion |