2 research outputs found
THE EFFECT OF PROTEIN SOURCE ON PARAMETERS OF RUMEN CONTENT AND DIGESTIBILITY OF NUTRIENTS IN FATTENING LAMBS
No full textAbstract D. RuZiC-MusliCH, M. P. PetRoviCH, M. M. PetRoviCH, P. PeRisiCH, Z. BijeliCH, v. PanteliCH and v. CaRo-PetRoviCH, 2013. the effect of protein source on parameters of rumen content and digestibility of nutrients in fattening lambs. Bulg. J Agric. Sci., In this paper, results of the study of the effect of different protein sources in concentrate mixtures on fluid rumen content and digestibility of nutrients in fattening lambs are presented. Physiological study included 18 male lambs of Mis population, average body mass of approx, 35.0 kg, divided into three groups. Lambs were fed isoprotein concentrate mixtures (14% CP) which differed about protein source: sunflower meal (I), soybean meal (II) and fishmeal (III), resulting in different ratio of protein non-degradable in rumen: 43% (I), 51% (II) and 58% (iii), respectively. Content of ammonia nitrogen (nH 3 -N) in rumen fluid of fattening lambs in said treatments was 42.46: 33.86: 31.35 mg/100 ml. pH rumen value in treatments i: ii: iii were 6.56: 6.35: 6.15. Trial results show that the level of protein intake was not under significant influence of studied treatment, considering that digestibility coefficients were 52.58%: 51.30%: 55.12%. With the increase of the share of non-degradable protein in concentrate mixtures, the tendency of fat digestibility increase was observed: 76.13: 77.98: 87.17%, also of decrease of cellulose intake: 67.40: 45.87: 22.39% and nFe: 83.87: 76.05: 82.96%
Refractory Materials for Flame Deflector Protection System Corrosion Control: Coatings Systems Literature Survey
No full textWhen space vehicles are launched, extreme heat, exhaust, and chemicals are produced and these form a very aggressive exposure environment at the launch complex. The facilities in the launch complex are exposed to this aggressive environment. The vehicle exhaust directly impacts the flame deflectors, making these systems very susceptible to high wear and potential failure. A project was formulated to develop or identify new materials or systems such that the wear and/or damage to the flame deflector system, as a result of the severe environmental exposure conditions during launches, can be mitigated. This report provides a survey of potential protective coatings for the refractory concrete lining on the steel base structure on the flame deflectors at Kennedy Space Center (KSC)
