9,255 research outputs found
Midrapidity hyperon production in pp and pA collisions from low to LHC energies
The experimental data on p, Lambda, Xi-, Omega-, baryons and the
corresponding antibaryons spectra obtained by different collaborations are
compared with the results of the calculations performed into the frame of the
Quark-Gluon String Model. The contribution of String Junction diffusion and the
inelastic screening corrections are accounted for in the theoretical
calculations. The predictions of the Quark-Gluon String Model both for pp and
pA collisions are extended up to the LHC energies.Comment: 23 pages, 12 figures, and 3 tables. arXiv admin note: substantial
text overlap with arXiv:1305.0388; text overlap with arXiv:1307.3442 by other
author
Hadroproduction of neutral Kstar-mesons up to LHC energies
We consider the experimental data on neutral Kstar-meson production on
nucleon and nuclear targets. The Quark-Gluon String Model quantitatively
describes the inclusive density in the midrapidity region, as well as the
initial energy and A dependences of the produced Kstar-mesons.Comment: 19 pages, 8 figures, and 4 tables. arXiv admin note: text overlap
with arXiv:1610.0603
Effects of forage supplements on milk production and chemical properties, in vivo digestibility, rumen fermentation and N excretion in dairy cows offered red clover silage and corn silage or dry ground corn
peer-reviewedThis study concerned the effects of partial substitution of clover silage with high starch forages on milk production and chemical composition, in vivo digestibility, rumen
fermentation pattern and nitrogen excretion of dairy cows. Sixteen dairy cows were
separated into two groups and were assigned to treatments in a two-period crossover
design. Two forage supplements were used: corn silage (CS) and dry ground corn (DG).
All animals received 4.5 kg of concentrate dry matter per day. Results showed no significant
difference between the forage supplements for milk production, while significant
differences (P<0.01) were observed for milk fat, milk protein and nitrogen utilisation
efficiency (42 v. 4.0 g/kg, 3.5 v. 3.3 g/kg and 222 v. 188 g/kg, respectively, for DG and CS).
Faecal N excretion did not differ between forage supplements, but urinary N excretion
was higher for CS (P<0.05). No significant differences were observed between treatments
for rumen fluid pH or for rumen fluid concentrations of ammonium nitrogen
or of acetic, propionic or butyric acids. Dry matter intake and the in vivo digestibility
of dry matter, organic matter, acid detergent fibre and neutral detergent fibre were all
higher for CS compared with DG.The authors are grateful to the Environmental Office
of the Cantabrian Government for funding the project
05-640.02-2174
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