Czech Journal of Animal Science, 2020 (vol. 65), issue 7
Changes in molecular structure of protein and carbohydrate in soybean products with different processing methods and their effects on nutrient degradation characteristics of the productsOriginal Paper
Kenan Tang, Meimei Zhang, Dasen Liu, Yanfang Li, Peng Zhang
Czech J. Anim. Sci., 2020, 65(7):233-246 | DOI: 10.17221/8/2020-CJAS 
In this study, four types of soybean products with different processing methods (soybean meal 1 and soybean meal 2, extruded soybean meal, fermented soybean meal and extruded soybean) were used to examine the effect of fermentation and extrusion on molecular structures of protein and carbohydrate. Extrusion and fermentation significantly decreased (P < 0.05) the values of related protein spectral intensities (height and area of amide and secondary structure) and the biggest reduction was found in extruded soybean compared to soybean meal 1 and soybean...
Choice feeding in fattening pigs: Effect of diets differing in nutrient density on feeding behaviour and fattening performanceOriginal Paper
Josef Pichler, Christiane Schwarz, Martin Gierus, Karl Schedle
Czech J. Anim. Sci., 2020, 65(7):247-257 | DOI: 10.17221/111/2020-CJAS
The aim of this study was to determine the proportion of feed consumed by pigs when they had the choice to meet their nutrient requirements offering a low (LND) or a high (HND) nutrient dense diet on animal performance and feeding behaviour. In total 120 barrows and gilts were allotted to three dietary treatments (LND, HND and a feed choice group, FC). Diets were calculated to keep a constant ratio of megajoule net energy (MJ NE) to nutrient standardised ileal digestible (SID) lysine, SID methionine and cysteine, SID threonine,...
Examination of high-resolution feed intake data of grower finisher pigs confronted with typical short-term disturbances in stable routineOriginal Paper
Peter Loibl, Wilhelm Windisch, Wolfgang Preißinger
Czech J. Anim. Sci., 2020, 65(7):258-267 | DOI: 10.17221/25/2020-CJAS
Modern pig feeding systems allow the collection of highly detailed feeding data for each animal. These data enable the examination of individual feeding behaviours to assess an animal's wellbeing. As such, four different treatments ‒ undisturbed control, starving (no feed for 24 h, restrictive feeding), feed change (changes in feed composition) and social stress (exchanging of animals between the pens and short-term reduction of accessible water) ‒ were designed to simulate typical short-term disturbances in a practical stable routine. Each...
Effects of enriched mesquite piperidine alkaloid extract in diets with reduced crude protein concentration on the rumen microbial efficiency and performance in lambsOriginal Paper
Eliseu Ferreira Brito, Mara Lúcia Albuquerque Pereira, Herymá Giovane de Oliveira Silva, Ana Cláudia Maia Soares, George Soares Correia, Leandro Borges Sousa, Larisse Borges Sousa, Virgínia Patrícia dos Santos Soares, Vanderlúcia Fonseca de Paula
Czech J. Anim. Sci., 2020, 65(7):268-280 | DOI: 10.17221/54/2020-CJAS
The objective of this study was to evaluate the effects of enriched mesquite piperidine alkaloid (MPA) extract at 31 mg/kg of dry matter (DM) in diets with 16% or 13% of crude protein (CP) compared to a diet with 16% CP without additive (control) and diets with monensin (MON) at 31 mg/kg DM and 16% or 13% CP. The intake, ingestive behaviour, apparent digestibility, body weight gain, microbial protein synthesis and nitrogen balance were evaluated. A total of 30 uncastrated crossbred Santa Inês × Bergamasca lambs were used and allocated in a completely randomized...