Czech Journal of Animal Science, 2023 (vol. 68), issue 5
Effects of toll like receptor 4 overexpression on blood parameters, body composition, and gastrointestinal microbial diversity in sheepOriginal Paper
Xu-Ting Song, Duo-Wei Zhao, Qi Lu, Jun Lu, Mei-Yu Qi, Ming-Hai Lu, Xiu-Qin Yang, Yu-Chang Yao
Czech J. Anim. Sci., 2023, 68(5):189-201 | DOI: 10.17221/76/2022-CJAS 
Genetic modifications can improve the health status and disease resistance of farm animals. In the previous study, genetically modified (GM) sheep overexpressing toll like receptor 4 (TLR4) were produced. The GM sheep had stronger ability to eliminate invasive microbes compared to the wild-type (WT) sheep. Physiological status and immune homeostasis, blood parameters, body composition, and gastrointestinal microbial diversity were evaluated in this study to elucidate the effects of TLR4 overexpression. In a set of 10 GM rams, the TLR4 mRNA and protein expression levels in the peripheral blood mononuclear cells, muscle, kidney,...
Effects of phytogenic feed additives on the growth, blood biochemistry, and caecal microorganisms of White Roman geeseOriginal Paper
Shih-Yi Shen, Yuan-Yu Lin, Shih-Chieh Liao, Jhin-Syuan Wang, Sheng-Der Wang, Ching-Yi Lien
Czech J. Anim. Sci., 2023, 68(5):202-211 | DOI: 10.17221/205/2022-CJAS
This study investigated the effects of Lycium chinense Miller stem (LCM) and Origanum vulgare Linn (oregano) essential oil on growth, blood biochemistry, and caecal microorganisms in White Roman goose. A total of 96-day-old White Roman geese were randomly allocated to a control group and three treatment groups. The G 0.05 diet was enriched with 0.05% LCM extract, the G 0.5 diet was enriched with 0.5% LCM extract, and the O 0.05 diet was enriched with 0.05% oregano essential oil. Each treatment was allotted to three pens, with four males and four females per pen. Geese were fed for 83 days. Geese in group O 0.05 had greater body...
Allometric coefficient in broilers and development of white striping and wooden breast myopathiesOriginal Paper
Fernando Alberto Benitez dos Santos, Claudia Marie Komiyama, Vivian Aparecida Rios de Castilho Heiss, Maria Fernanda Castro Burbarelli, Rodrigo Garófallo Garcia, Deivid Kelly Barbosa, Bruna Barreto Przybulinski, Leonardo de Oliveira Seno, Andrey Sávio de Almeida Assunção, Erika Rosendo de Sena Gandra
Czech J. Anim. Sci., 2023, 68(5):212-221 | DOI: 10.17221/182/2022-CJAS
The aim was to study the evolution and severity of white striping and wooden breast myopathies and to carry out a study on the parameters of meat quality and allometric growth of male and female broilers at different ages. The experiment was conducted in a broiler house in a completely randomized design, using 960 one-day-old chicks of the Cobb® strain, with 480 chicks of each sex. 96 birds per treatment were slaughtered weekly at the age of 21 to 49 days. The present study analyses the occurrence of myopathies, their scores, and their evolution over the age of the birds, comparing males and females. Further assessments included...
Molybdoenzymes isolated from S. glanis liver can produce nitric oxide from nitrates and nitritesOriginal Paper
Karlygash Aubakirova, Mereke Satkanov, Maral Kulataeva, Gulmira Assylbekova, Aigul Kambarbekova, Zerekbai Alikulov
Czech J. Anim. Sci., 2023, 68(5):222-230 | DOI: 10.17221/206/2022-CJAS
Nitric oxide (NO) plays numerous essential physiological functions in terrestrial animals. In mammals, NO production from l-arginine is catalysed by the enzyme NO synthase (NOS). In recent years, data have begun to emerge on NOS expression and the physiological significance of NO in ectothermic vertebrates such as fish. However, there are relatively fewer data compared to the mammalian system. Although it is already well known that animal molybdoenzymes can convert nitrate and nitrite into NO, there is almost no information on the content and properties of molybdoenzymes in fish organs in the scientific literature. In this regard, the objectives...