N-3 long-chain polyunsaturated fatty acids (n-3 LCPUFA) are subject of growing interest as they are of particular relevance for meat quality and human health. However, their content in the muscles of cattle is generally low probably as the complex result of their biosynthesis from dietary n-3 PUFA in the muscle and/or in other tissues/organs and of their subsequent uptake by the muscle. In view...

Work was focused on possibilities of biogas production from a crude glycerol. This material is by-product of biodiesel production. In the work results of crude glycerol treatment in the laboratory mixed reactor and in the laboratory UASB reactors are described. Results from long-term co-digestion of maize silage and crude glycerol in full scale anaerobic reactor at biogas plant are also discuss...

The objective of this study was to evaluate the effect an early application potassium (K) fertilizer on pearl millet (Pennisetum glaucum L.) grown during fall/winter performance maize (Zea mays silage in succession. Using a randomized block design, harvest, plots were composed and six doses K (0, 30, 60, 90, 120 150 kg K2O ha-1) as muriate potash (57% K2O) addition fallow. In summer cultivation...

Microbial biomass nitrogen and carbon were studied in long-term field experiments with continuous cultivation of silage maize and with crop rotation. a positive effect of organic fertilizers on the microbial biomass nitrogen and the carbon content in soil was observed. Statistically significant effect of organic fertilizers on the higher content of microbial biomass C and n was established in t...

Accurate predictions of crop yield are critical for developing effective agricultural and food policies at the regional and global scales. We evaluated a machine-learning method, Random Forests (RF), for its ability to predict crop yield responses to climate and biophysical variables at global and regional scales in wheat, maize, and potato in comparison with multiple linear regressions (MLR) s...

This review analyzes the potential role and long-term effects of field perennial polycultures (mixtures) in agricultural systems, with the aim of reducing the trade-offs between provisioning and regulating ecosystem services. First, crop rotations are identified as a suitable tool for the assessment of the long-term effects of perennial polycultures on ecosystem services, which are not visible ...

Maize silage (MS) has become one of the major energy components in ruminant nutrition. The maize crop is suitable for ensiling and high dry matter (DM) yield nutritive value. aim this review to provide a comprehensive overview effect cutting height maturity at harvest on chemical composition MS fermentation quality silo. With an increase maturity, content increases about 400 g DM/kg fresh crop,...

The aim of this study was to compare the n-alkanes and the ytterbium (Yb)/faecal index techniques as two methods for estimating the herbage intake of dairy cows fed indoors on different herbage : supplement ratios and feeding levels. The supplement was a mixture of maize silage and soyabean meal (ratio of 87 : 13 on a dry matter (DM) basis). In all, four treatments were studied. The herbage : s...

The aim of the current study was to examine effect proportion and digestibility grass-clover silage on dry matter intake (DMI), milk yield nitrogen (N) excretion in lactating dairy cows. In total, 36 Danish Holstein cows, 12 primiparous 24 multiparous, were included study. At beginning experiment cows average (mean ± SD) 122 81 days (DIM). divided into 9 groups (4 each group) based parity DIM, ...