Czech Journal of Animal Science, 2024 (vol. 69), issue 11
Quality and in vitro fertilising ability of cryostored Pinzgau bull insemination dosesOriginal Paper
Lucia Olexiková, Linda Dujíčková, Jaromír Vašíček, Andrej Baláži, Andrea Svoradová, Lenka Kuželová, Alexander Makarevich, Peter Ivanič, Peter Chrenek
Czech J. Anim. Sci., 2024, 69(11):431-440 | DOI: 10.17221/142/2024-CJAS 
Applicability of cryopreserved insemination doses is dependent on the quality of the semen after thawing. The aim of the study was to check the options of new markers for the assessment of sperm quality to predict their fertilisation ability. In five bulls of the Pinzgau breed, the sperm fertilising ability was determined using the in vitro fertilisation. Bulls were divided according to the achieved blastocyst rate: bulls with good fertilising ability (NOB – 38.6%, KAZ – 28.9%, GAL – 29.3%) and bulls with low fertilising ability (LOH – 19.4%, NUS – 22.1%). In addition to the sperm motility and morphology,...
The effect of the dried Gracilaria spp. undergoing different drying methods on in vitro rumen fermentationOriginal Paper
Farwa Shakeel, Yeni Widiawati, Sharly Asmairicen, Agung Purnomoadi, Agustin Herliatika, Yenny Nur Anggraeny, Setiasih Setiasih, Muhammad Rizwan, Ruslan Abdul Gopar, Antonius Antonius, Igit Atang Sunante, Idris Idris, Susi Riyanti, Winwin Widaringsih, Faizan Ahmad Shakir, Saad Irfan
Czech J. Anim. Sci., 2024, 69(11):441-449 | DOI: 10.17221/75/2024-CJAS
Seaweed has an important role in the mitigation of enteric methane (CH4) production by ruminant animals. The utilisation and its effectiveness in enteric CH4 reduction require a preservation process. The aim of the study was to investigate the effect of different drying processes on the effectiveness of seaweed Gracilaria spp. in reducing CH4 production assessed through an in vitro method. Three drying techniques, sun-drying, oven-drying, and freeze-drying, were applied to produce a dried product of Glacilaria spp. Rice straw basal diets combined with concentrate at the 70 : 30% were...
Dietary antioxidant supplementation improves the in vitro quality and antioxidant capacity of Colombian Creole stallion semenOriginal Paper
Maria Claudia Puerta, Laura Henao-Salazar, Isabel Catalina Vélez, Sergio León, Banjamín Rojano, Giovanni Restrepo, Alexandra Úsuga
Czech J. Anim. Sci., 2024, 69(11):450-461 | DOI: 10.17221/98/2024-CJAS
Dietary antioxidant supplementation has become popular for managing male infertility because of its impact on the antioxidant capacity of semen. This study evaluates the effect of dietary antioxidant supplementation on the seminal characteristics of Colombian Creole horses. Semen from six Colombian Creole stallions was collected using an artificial vagina. The stallions were randomly allocated to a control group (CG) or a supplementation group (SG) that received a multi-antioxidant supplement. A repeated measures design, with a wash out period of two weeks between treatments, was used. Sperm motility and kinematics were assessed using a computer-assisted...
Pedigree analysis of the Latvian Warmblood horse heavy type populationOriginal Paper
Viktorija Nikonova, Daina Jonkus, Liga Paura
Czech J. Anim. Sci., 2024, 69(11):462-469 | DOI: 10.17221/147/2024-CJAS
A breeding program has been developed for the Latvian warmblood heavy type horses in Latvia, with the aim to preserve this type, because the number of these horses is small and the status of the local endangered breed has been granted. The aim of the study was to analyse the genetic structure, inbreeding and effective population size of the Latvian warmblood heavy type (LSB) horse population. Horses that were living at the time of the study on January 1, 2023 were used for the study. A total of 374 genetic resources live horses were analysed. Population structure analysis, inbreeding and effective population size were investigated. Calculations...