Acta Univ. Agric. Silvic. Mendelianae Brun. 2019, 67(1), 155-161 | DOI: 10.11118/actaun201967010155

Analysis of Reproduction Indicators of the Yellow-Billed Stork (Mycteria ibis)

Zuzana Rečková1, Radek Filipčík1, Ladislav Máchal1, Roman Horský1,2
1 Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2 ZOO and palace Zlín - Lešná, Lukovská 112, 763 14 Zlín, Czech Republic

The aim of the study was to supplement the original knowledge about the reproduction of one of four species of storks (Mycteria). The storks are classified by IUCN as endangered species with different degrees of extinction and their reproduction in human care is difficult. Therefore, it is necessary to continuously supplement and deepen the knowledge of their reproduction in captivity. The subject of the thesis was the analysis of reproductive indicators of the yellow-billed ibis (Mycteria ibis). By analyzing partial reproduction indicators, we wanted to supplement the knowledge that is needed to ensure the necessary degree of reproduction of the yellow-billed stork in human care. The monitoring was carried out in the ZOO Zlín - Lešná in these years 2011-2014. After laying, the eggs were measured and weighed, which was repeated in several-day intervals. In addition, hatchability, the number of reared young and the weight of the young after hatching were monitored. During the monitoring period, a total of 46 eggs of the yellow-billed stork by 8 parent pairs were evaluated. The average fertilized eggs ratio was 56.5 %. The average eggs length was 66.07 mm, the average eggs width was 47.02 mm and the average eggs weight was 80.46 g. The average eggs weight loss during their incubation was 5.60 g. The average hatchability was 52.2 % from all laid eggs and 92.3 % from fertilized eggs. Altogether, 24 young of the yellow-billed stork hatched during the monitoring period. The average weight of young yellow-billed stork on the day of hatching was 58.14 g. Throughout to the reference period, were reared 15 individuals of the yellow-billed stork.

Keywords: Mycteria ibis, yellow-billed Stork, ciconiiformes, water bird reproduction

Received: October 11, 2018; Accepted: November 28, 2018; Published: February 28, 2019  Show citation

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Rečková, Z., Filipčík, R., Máchal, L., & Horský, R. (2019). Analysis of Reproduction Indicators of the Yellow-Billed Stork (Mycteria ibis). Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis67(1), 155-161. doi: 10.11118/actaun201967010155
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