Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties
The analysis included 433 daughters of 10 bulls, calving for the first time in the period from 2007 to 2014, on 6 dairy farms of the Agricultural Corporation Belgrade AD. Fixed factors included in the model were the effects of the farm, year of calving and calving season, and as a random factor the...
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| Format: | Article |
| Language: | English |
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Serbian Association of Plant Breedings and Seed Producers
2018-01-01
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| Series: | Selekcija i Semenarstvo |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/0354-5881/2018/0354-58811801019M.pdf |
| _version_ | 1819040699273707520 |
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| author | Mićić Nenad Marinković Miloš Lazarević Marina Pantelić Vlada Ostojić-Andrić Dušica Stanojević Dragan Miletić Aleksandar |
| author_facet | Mićić Nenad Marinković Miloš Lazarević Marina Pantelić Vlada Ostojić-Andrić Dušica Stanojević Dragan Miletić Aleksandar |
| author_sort | Mićić Nenad |
| collection | DOAJ |
| description | The analysis included 433 daughters of 10 bulls, calving for the first time in the period from 2007 to 2014, on 6 dairy farms of the Agricultural Corporation Belgrade AD. Fixed factors included in the model were the effects of the farm, year of calving and calving season, and as a random factor the impact of the bull sire. The observed fertility properties on the basis of which breeding values were calculated were the number of days of gestation, the age at the first insemination, the service period duration and the calving interval. Bulls were ranked on the basis of these properties and using the Spearman correlation coefficient, the degree of agreement between the ranks was determined. According to the breeding values calculated by using the Best Linear Unbiased Prediction (BLUP) method, the sire 1517 was best ranked for the trait duration of service period (-34,94 days) and the calving interval (-36,14 days), relative to the average of daughters. The effects of the farm and year of calving showed no significance (p>0.05) except on the duration of the gestation. The effect of the calving season showed a very high significance (p<0.001) for the following properties: age at first insemination, duration of the service period and calving interval, as well as significance (p<0.05) for the property duration of the gestation. A statistically very significant degree of agreement between the service period and the calving interval of 0.99** (p <0.01) was determined by the Spearman coefficient of correlation, while there was no significant difference between the other properties (p>0.05). |
| first_indexed | 2024-12-21T09:13:15Z |
| format | Article |
| id | doaj.art-b7636a9ed4a54a0b82c4afd040b9b513 |
| institution | Directory Open Access Journal |
| issn | 0354-5881 2406-209X |
| language | English |
| last_indexed | 2024-12-21T09:13:15Z |
| publishDate | 2018-01-01 |
| publisher | Serbian Association of Plant Breedings and Seed Producers |
| record_format | Article |
| series | Selekcija i Semenarstvo |
| spelling | doaj.art-b7636a9ed4a54a0b82c4afd040b9b5132022-12-21T19:09:11ZengSerbian Association of Plant Breedings and Seed ProducersSelekcija i Semenarstvo0354-58812406-209X2018-01-0124119260354-58811801019MEstimation of the breeding value and ranking of Holstein-Friesian bulls on fertility propertiesMićić Nenad0Marinković Miloš1Lazarević Marina2Pantelić Vlada3Ostojić-Andrić Dušica4Stanojević Dragan5Miletić Aleksandar6Institut za stočarstvo, Zemun - BeogradInstitut za stočarstvo, Zemun - BeogradInstitut za stočarstvo, Zemun - BeogradInstitut za stočarstvo, Zemun - BeogradInstitut za stočarstvo, Zemun - BeogradUniverzitet u Beogradu, Poljoprivredni fakultetInstitut PKB Agroekonomik, Padinska skela, BeogradThe analysis included 433 daughters of 10 bulls, calving for the first time in the period from 2007 to 2014, on 6 dairy farms of the Agricultural Corporation Belgrade AD. Fixed factors included in the model were the effects of the farm, year of calving and calving season, and as a random factor the impact of the bull sire. The observed fertility properties on the basis of which breeding values were calculated were the number of days of gestation, the age at the first insemination, the service period duration and the calving interval. Bulls were ranked on the basis of these properties and using the Spearman correlation coefficient, the degree of agreement between the ranks was determined. According to the breeding values calculated by using the Best Linear Unbiased Prediction (BLUP) method, the sire 1517 was best ranked for the trait duration of service period (-34,94 days) and the calving interval (-36,14 days), relative to the average of daughters. The effects of the farm and year of calving showed no significance (p>0.05) except on the duration of the gestation. The effect of the calving season showed a very high significance (p<0.001) for the following properties: age at first insemination, duration of the service period and calving interval, as well as significance (p<0.05) for the property duration of the gestation. A statistically very significant degree of agreement between the service period and the calving interval of 0.99** (p <0.01) was determined by the Spearman coefficient of correlation, while there was no significant difference between the other properties (p>0.05).https://scindeks-clanci.ceon.rs/data/pdf/0354-5881/2018/0354-58811801019M.pdfbreeding valuebull rankfertility propertiesprimiparous heifersHolstein-Friesian breed |
| spellingShingle | Mićić Nenad Marinković Miloš Lazarević Marina Pantelić Vlada Ostojić-Andrić Dušica Stanojević Dragan Miletić Aleksandar Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties Selekcija i Semenarstvo breeding value bull rank fertility properties primiparous heifers Holstein-Friesian breed |
| title | Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties |
| title_full | Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties |
| title_fullStr | Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties |
| title_full_unstemmed | Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties |
| title_short | Estimation of the breeding value and ranking of Holstein-Friesian bulls on fertility properties |
| title_sort | estimation of the breeding value and ranking of holstein friesian bulls on fertility properties |
| topic | breeding value bull rank fertility properties primiparous heifers Holstein-Friesian breed |
| url | https://scindeks-clanci.ceon.rs/data/pdf/0354-5881/2018/0354-58811801019M.pdf |
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