Czech Journal of Animal Science - Latest articles
Results 91 to 99 of 99:
Effects of different dietary inclusions of whole-plant corn silage on growth performance, nutrient availability and jejunal development in growing-finishing pigs
Xiangyu Ma, Jing Sun, Jianpu Zhao, Xiaoxue Jv, Jiuyuan Dong, Weiren Yang, Yanping Jiang, Yang Li, Lijie Yang, Shuzhen Jiang
Czech J. Anim. Sci., 2024, 69(2):48-58 | DOI: 10.17221/153/2023-CJAS 
This study aimed to evaluate the effects of whole-plant corn silage (WCS) on growth performance, nutrient availability and intestinal development in growing-finishing pigs. A total of 32 barrows (33.1 ± 3.49 kg) were randomly allocated to four treatments. Control was the basal diet, and the low, medium, and high treatments were basal diets substituted with WCS (air-dry basis) at 5.0%, 7.5%, and 10.0% from day 1 to 42, and 10.0%, 12.5%, and 15.0% from day 43 to 98, respectively. The results showed that the average daily feed intake (ADFI), feed/gain (F/G), and crypt depth (CD) increased linearly (P < 0.05) with the increasing of WCS....
The effect of feed restriction and housing system on performance, organ proportion and microbiota
Jan Tyl, Eva Tůmová, Darina Chodová
Czech J. Anim. Sci., 2024, 69(2):68-74 | DOI: 10.17221/172/2023-CJAS
The aim of the present study was to evaluate the effects of feed restriction and the combination of feed restriction with pasture on the performance parameters of fast-growing chickens, the proportion of internal organs and the caecum microbiota. In the experiment, one-day-old Ross 308 chickens were divided into three groups. Group 1 was fed ad libitum (AL), group 2 was restricted on feed at a rate of 70% ad libitum (R), group 3 was restricted to the same age and level as group 2, and was restricted to 22 days on pasture (FR). Feed restriction and the combination of feed restriction and pasture significantly reduced body weight beginning...
Rabbit and quail: Little known but valuable meat sources
Antonella Dalle Zotte, Marco Cullere
Czech J. Anim. Sci., 2024, 69(2):39-47 | DOI: 10.17221/165/2023-CJAS
In the actual scenario of increasing demand of animal food and the need to develop sustainable production systems, rabbit (Oryctolagus cuniculus) and quail (Coturnix japonica) represent animal species of undeniable potential, profoundly linked to human’s eating habits in several parts of the World, yet not fully exploited. Given the remarkable adaptability of quail and rabbit to different farming contexts, they can be successfully farmed both in specialised and technologically advanced production systems targeting market diversification, as well as in such areas of the World where malnutrition is a severe issue and technological...
Effect of dietary housefly maggot extract on egg production and egg quality in laying hens under a digital livestock system
Victor A. Zammit, Sang O. Park
Czech J. Anim. Sci., 2024, 69(2):59-67 | DOI: 10.17221/146/2023-CJAS
Antibiotics in poultry feed are banned in many countries owing to their side effects, and insects containing antimicrobial peptides are proven to have potential as antibiotic alternatives in such feed. Thus, the primary objective of this study was to investigate the effects of dietary housefly maggot extract (HME) as the biofunctional material for antibiotic replacement in laying hens. The biofunctional properties of HME on egg production, egg quality, blood biomarkers of immune function, and microbiota were evaluated over a period of 40 to 50 weeks in laying hens under a digital livestock system. A total of 120 forty-week-old Hyline Brown laying hens...
Comparison of selected data acquisition models using on-farm production records on qualitative parameters of oocytes in dairy cows
Luděk Stádník, Veronika Kinterová, Jiří Šichtař, Jaromír Ducháček, Matúš Gašparík, Lucie Němcová, Radek Procházka, Radim Codl
Czech J. Anim. Sci., 2024, 69(1):1-10 | DOI: 10.17221/156/2023-CJAS
Dairy cows enter the negative energy balance in the early post-partum period, which negatively affects milk yield, health status and reproduction. This study aimed to determine if milk yield (MY) and fat/protein (F/P) ratio could be used as reliable indicators for predicting the quality of aspirated oocytes and their further use for in vitro fertilisation. A secondary goal was to compare different periods before oocyte aspiration to determine which period had the most significant impact on the oocyte development in donor cows. All tested Holstein cows were at their first lactation (n = 68). The first ultrasound-guided follicular aspiration...
Does feed restriction and pasture affect carcass composition and meat quality of fast-growing chickens?
Eva Tůmová, Darina Chodová, Jan Tyl, Monika Okrouhlá, Tarek A. Ebeid
Czech J. Anim. Sci., 2024, 69(1):11-17 | DOI: 10.17221/154/2023-CJAS
The aim of the study was to evaluate the effect of feeding regime (FR) and the combination of FR with pasture on the carcass composition and meat quality parameters of fast-growing chickens. Ross 308 chickens were split into three groups: Group 1 was fed ad libitum, and Groups 2 and 3 had a restricted diet. The chickens were feed-restricted at a rate of 70% ad libitum from 8 to 14 days of age. In Group 3, after restriction at the age of 21 days, chickens were kept on a pasture until the end of the experiment at 35 days of age. The chickens were fed ad libitum prior to and following restriction. Feed restriction and the combination...
Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca)
Uroš Ljubobratović, László Ardó, Georgina Fazekas, Zoltán Horváth, Jovanka Lukić
Czech J. Anim. Sci., 2024, 69(1):18-28 | DOI: 10.17221/136/2023-CJAS
The present study aimed to assess the effects of thermal manipulation on the vitellogenesis and final oocyte maturation (FOM) in pikeperch. Two groups of fish were stocked in two separate tanks of the climate chamber. One group was stocked at 10-month age (THERMAL), while the other was continually kept under stable photothermal conditions until 19-month-age (CONTROL) and then transferred to a climate chamber. The progress of vitellogenesis was assessed via evaluation of the oocyte diameter at the mid- and late-autumn phases, and the gonadosomatic index (GSI) at the late-autumn phase. Finally, females from the CONTROL group were hormonally stimulated...
Protective effects of green tea (Camellia sinensis) extract against cypermethrin-induced neurotoxicity in rainbow trout (Oncorhynchus mykiss) brain tissues
Murteza Cakir, Tayfun Karatas, Serkan Yildirim
Czech J. Anim. Sci., 2024, 69(1):29-37 | DOI: 10.17221/110/2023-CJAS
Corrigendum in: Czech J. Anim. Sci. 2024 May 31;69(5):209. doi: 10.17221/83/2024-CJASThis study was conducted to evaluate the protective impacts of green tea extract (GT) against cypermethrin-induced (CYP) neurotoxicity parameters such as acetylcholinesterase activity, oxidative stress, immune response, histopathology, apoptosis, and DNA damage in the brain tissues of rainbow trout (Oncorhynchus mykiss). The trial was divided into four groups (group 1, 2, 3 and 4). Group 1 was the control, while group 2 was treated with 0.1 mg/l of CYP, group 3 was treated with 0.1 mg/l of CYP + 100 mg/l of GT and group 4 was treated with...
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Czech J. Anim. Sci., 2024, 69(1):I-II