Zobrazeno 1 - 10
of 140
pro vyhledávání: '"D PENKOV"'
Publikováno v:
Journal of Central European Agriculture, Vol 9, Iss 2, Pp 305-310 (2008)
An ICP-ETAAS analyze of unwashed and washed sheep- wool for establishing of Pb and Cd have been conducted. A signifi cant difference in the contents of Pb (15.3- unwashed versus 8.15 mg/kg DM– washed wool) were established. The Cd – content were
Externí odkaz:
https://doaj.org/article/c3432768adf948799fb6b53b6afa05a4
Autor:
B BAYKOV, HR HRISTEV, D PENKOV, B ZAHARINOV, YU GEORGIEVA, CH WILLEKE - WETSTEIN, J STEINBACH
Publikováno v:
Journal of Central European Agriculture, Vol 4, Iss 4, Pp 389-398 (2004)
An investigation on the movement of Lead (Pb) and cadmium (Cd) in a trophic chain in 2 villages (industrial polluted and non polluted) has been conducted. The contents of the 2 heavy metals in the soil, food and in different organs of young kids, so
Externí odkaz:
https://doaj.org/article/d0338b5b24ad46c3bf68c9e72bb029c1
Publikováno v:
Journal of Central European Agriculture, Vol 4, Iss 2, Pp 191-198 (2003)
The true digestibility of amino acids of 5 groups of different Trifolium varieties and hybrids was established by using the balance method adapted for geese. Digestibility of the most important amino acids Lysine varies from 70.40 (for tetraplod red
Externí odkaz:
https://doaj.org/article/a86e5311c52342f8b092a881200f5598
Publikováno v:
Journal of Central European Agriculture, Vol 4, Iss 1, Pp 23-30 (2003)
The technogenic Clarc of lead (Pb) and cadmium (Cd) from the upper soil layer and the forage plants in an industrially polluted region, so as the Pb and Cd input in the organism of young lambs and kid by the synthesis of secondary biological producti
Externí odkaz:
https://doaj.org/article/69b4a02a1e4a4c77be40c9af4a8a0985
Autor:
S. Chobanova, D. Penkov
Publikováno v:
Agricultural Science and Technology, Vol 13, Iss 4, Pp 378-381 (2021)
Abstract. Using adapted methods for balanced experiments with poultry, the true digestibility coefficients of the essential amino acids of two high protein sunflower meals – 40+® and 47® have been established. The true digestibility coefficients
Externí odkaz:
https://doaj.org/article/8d71a049fb5a4cf3a8bcde2ee24da1a4
Publikováno v:
Trakia Journal of Sciences, Vol 19, Iss 3, Pp 226-230 (2021)
AIM: establishing of the net transformation of the energy and the protein in the eco-technical chain “fodder-egg mélange” by replacement of the 10% of the grain component of the combined fodder for Guinea fowls – layers with bread wastes. MATE
Externí odkaz:
https://doaj.org/article/3a5234e162224b399ba5c4175bf73d70
Autor:
S. Grigorova, D. Penkov
Publikováno v:
Trakia Journal of Sciences, Vol 19, Iss 3, Pp 222-225 (2021)
Aim: Monitoring the effect of the replacement of 5 and 10% of the grain component in compound feed for laying hens with the same amount of extruded bread waste on Clarcs of energy distribution (CED)/ protein transformation (CPT)” in the eco-technic
Externí odkaz:
https://doaj.org/article/21f0d006fa7b4a5bac44367f7b1571db
Publikováno v:
Trakia Journal of Sciences, Vol 19, Iss 3, Pp 215-221 (2021)
The aim of the study was to calculate the “multiplication effect” between the included gross energy (crude protein) with the seeds and the same, obtained with the grain yields in the eco-technical system “seed material – soil – grain yield
Externí odkaz:
https://doaj.org/article/a32d641a9fe7467c88524adcbccabf06
Autor:
S. Chobanova, D. Penkov
Publikováno v:
Agricultural Science and Technology, Vol 13, Iss 3, Pp 255-259 (2021)
Abstract. The aim of the study is to compare the net utilization of energy and protein in the eco-technical chain „feed-meat“ when replacing part of the soybean meal with high-protein sunflower meal in broiler fattening. One control and 3 experim
Externí odkaz:
https://doaj.org/article/54874100d8634c1daf1b3e29fc2ec88c
Publikováno v:
Trakia Journal of Sciences, Vol 19, Iss 1, Pp 53-62 (2021)
The aim of the study was to investigate the effect of the partial replacement of wheat with bakery waste in compound feed on slaughter characteristics, quality and composition of meat in a heavy population of domestic quail. A control group (n = 90),
Externí odkaz:
https://doaj.org/article/2d53ecb8a19146e4a35cffbfe67bc0c2