Naslov
Analysis of longevity performance in the different bull lines of Busha cattle in Croatia

Autori
Piplica, Aneta ; Asti, Vittoria ; Ablondi, Michela ; Vlahek, Ivan ; Sabolek, Ivana ; Ostović, Mario ; Menčik, Sven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
ASPA 25th Congress Book of Abstract / D’Alessandro, Angela Gabriella ; De Palo, Pasquale ; Maggiolino, Aristide ; Mele, Marcello - Monopoli (Bari, Italy) : Italian Journal of Animal Science ; Taylor & Francis Group, 2023, 41-41

Skup
The 25th Congress of the Animal Science and Production Association

Mjesto i datum
Monopoli, Italija, 13.06.2023. - 16.06.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Busha cattle ; longevity ; bull ; herd life

Sažetak
Longevity is a complex trait ; the longevity performance of the sire is a measurement of the time he produces in a herd and is determined by various factors such as fertility, health, and workability. The sire fulfilling an active working life in the herd increases the average herd production and efficiency by reducing input costs. Busha is a native breed of cattle reared in an extensive system and classified as an endangered population - maintained. From the establishment of the Herd Book, breeding systematization defined 24 lines of bulls (LB). The aim was to analyze the herd life of different bull lines of the Busha cattle breed in Croatia. The data on 83 breeding sires born in 1995-2022 with at least one offspring were obtained from the Veterinary Information System of the Ministry of Agriculture, Directorate for Veterinary Administration. Herd life was defined as the total number of days from the calving date of first offspring to the last (culling) date of the bull. Testing of differences in the number of days spent in the herd between different lines was carried out considering as a minimum criterion 4 breeding bulls for each line. The difference in the days spent in the herd between the lines was carried out with one-way ANOVA at p<0.05. The average age of the bulls in the herd was 1549.84±974.14 days with a coefficient of variability (CV) of 62.85 %. The most represented line of bulls was LB3 (13.25 %), LB4 (22.89 %), LB5 (10.84 %), LB6 (4.82 %), LB7 (4.82 %), LB8 (4.82 %), LB9 (9.63 %), LB11 (8.43 %) and LB12 (7.22 %), with the most significant number of male progenies. No statistical significance was recorded in the days spent in the herd between the different bull lines. Also, results show a small number of certain bulls from the different lines in the breeding and relatively high use of natural service sires. Furthermore, considering the current living bulls, some bull lines are no longer in breeding. Increasing the number of productive bulls and improving longevity aid in the herd's average production enhancement, aiming to develop sustainable breeding strategies and maintain genetic diversity in the Busha cattle population.

Izvorni jezik
Engleski

Znanstvena područja
Veterinarska medicina

POVEZANOST RADA