Asymptotic Analysis of Optimal Piecewise Uniform Polar Quantization

In this paper, a simple and complete asymptotical analysis is given for a mean square error (MSE) piecewise uniform polar quantizer (PUPQ). We show that PUPQ has the same performance as the asymptotic nonuniform polar quantizer (NPQ) and has implementation complexity between complexities of NPQ and uniform polar quantization. The goal of this paper is solving the quantization problem in case of PUPQ and finding the corresponding support region

Chemical composition of chicken meat produced in extensive indoor and free range rearing systems

The present study involves the analysis of the chemical composition of white meat (breast muscles) and dark meat (leg muscles) of broilers in extensive indoor and free range systems. The length of fattening period was 56 days. At 56 days of age, 6 male and 6 female broilers were randomly selected from each rearing system and slaughtered. Cooled carcasses were dissected into primal cuts. Breast and leg muscle (thigh and drumstick) samples were used for chemical analyses. The obtained resultssuggested that free range rearing system was more favourable than extensive indoor system, as it resulted in a significantly higher protein content and a lower fat content of white and dark chicken meat. Female broilers produced a higher fat content and a somewhat lower protein content as compared to males.Keywords: Chemical composition, chicken meat, rearing system, se

Time Domain Explorations With Digital Sky Surveys

One of the new frontiers of astronomical research is the exploration of time variability on the sky at different wavelengths and flux levels. We have carried out a pilot project using DPOSS data to study strong variables and transients, and are now extending it to the new Palomar-QUEST synoptic sky survey. We report on our early findings and outline the methodology to be implemented in preparation for a real-time transient detection pipeline. In addition to large numbers of known types of highly variable sources (e.g., SNe, CVs, OVV QSOs, etc.), we expect to find numerous transients whose nature may be established by a rapid follow-up. Whereas we will make all detected variables publicly available through the web, we anticipate that email alerts would be issued in the real time for a subset of events deemed to be the most interesting. This real-time process entails many challenges, in an effort to maintain a high completeness while keeping the contamination low. We will utilize distributed Grid services developed by the GRIST project, and implement a variety of advanced statistical and machine learning techniques.Comment: 5 pages, 2 postscript figures, uses adassconf.sty. To be published in: "ADASS XIV (2004)", Eds. Patrick Shopbell, Matthew Britton and Rick Ebert, ASP Conference Serie

Efekat dodavanja enzima proteaze na masu i udeo jestivih pratećih proizvoda klanja pilića

This study evaluates the effect of protease supplementation of reduced crude protein diet for broilers on the weight of edible slaughter by-products (liver, gizzard, heart and abdominal fat) and their proportion in the body weight of birds at slaughter in two broiler genotypes – fast-growing Cobb 500 and slow-growing Master Gris. Protease (Ronozyme ProAct) was added at a concentration of 0.2% (E-I group) and 0.3% (E-II group), allowing reduction in crude protein level by 4% and 6%, respectively (through reduced soybean meal content). The length of the fattening period was 49 days. The results show somewhat greater differences in the weight and proportion of edible slaughter by-products between the hybrids and a similar response to dietary treatments by broilers from the three experimental groups in both hybrids, given their similar weights of edible slaughter by-products (heart, gizzard and abdominal fat) and their proportions in the body weight of birds at slaughter (significance was observed only in liver weight in Cobb 500 - P<0.05).U radu su analizirani efekti dodavanja enzima proteaze u hranu za piliće u tovu, uz smanjen nivo sirovih proteina, na masu jestivih pratećih proizvoda klanja (jetre, bubca, srca i abdominalne masti) i njihov udeo u masi grla pre klanja kod dva tovna hibrida – brzorastućeg Cobb 500 i spororastućeg Master Gris. Enzim proteaza (Ronozyme ProAct) dodat je u koncentraciji 0,2% (O-I grupa) i 0,3% (O-II grupa) uz istovremeno smanjenje sadržaja sirovih proteina za 4%, odnosno za 6% (preko smanjenog učešća sojine sačme). Tov pilića trajao je 49 dana. Na osnovu rezultata iz ovih istraživanja, može se zaključiti da su se nešto veće razlike u masi i udelu jestivih pratećih proizvoda klanja ispoljile između ispitivanih hibrida, a da su pilići iz sve tri ogledne grupe kod oba hibrida slično reagovali na primenjene tretmane ishrane, shodno tome da su imali približno iste mase jestivih pratećih proizvoda klanja (srca, bubca i abdominalne masti), kao i udele svih delova u masi grla pre klanja (značajnost se pojavila samo u masi jetre kod hibrida Cobb 500 - P<0,05)

Uticaj minazela plus na proizvodne rezultate i ekonomicnost tova junica

This paper presents the effects of the Minazel Plus zeolite product on the production performance – body weight, feed consumption and feed conversion, and economic performance of heifers in a fattening trial. The trial involved 22 female domestic spotted Simmental calves allocated to two groups (control C - ration without zeolite, and experimental E-I – ration with 0.2% Minazel Plus), each containing 11 calves with an average body weight of 139.09 kg at the beginning of the trial. The length of the trial period was 283 days. Ration included meadow hay and complete feed. Minazel Plus supplementation was provided through the feed concentrate. The trial involved measurement of body weights of heifers and feed consumption across groups at 31, 61, 91, 121, 151 and 283 days of the trial. Results showed that, at the end of the trial, control heifers had an average body weight of 432.73 kg/calf and concentrate feed conversion of 5.234 kg/kg weight gain, whereas the respective values in E-I heifers were 435.91 kg/calf and 5.179 kg/kg weight gain. The cost of the weight gain produced was higher by 0.33% (0.31 RSD/kg) in C calves than in E-I heifers, whereas the economic performance of the experimental animals receiving diet with Minazel Plus (0.2%) was higher by 0.29%.U radu su prikazani efekti zeolitskog preparata Minazel Plus na proizvodne rezultate –telesnu masu, konzumaciju i konverziju hrane i ekonomičnost tova ženske junadi u tovu. U ogledu je bilo 22 ženske teladi domaće šarene rase u tipu simentalca, podeljih u dve grupe (K grupa, obrok bez zeolitskog preparata i O-I grupa hranjena obrokom sa 0,2% Minazela Plus) sa po 11 grla u grupi, prosečne telesne mase na početku ogleda 139,09kg. Ogled je trajao 283 dana. Obrok je bio sastavljen od livadskog sena i potpune smeše, a Minazel Plus je dodavan preko koncentrovanog dela obroka. U toku ogleda merene su telesne mase junica i konzumacija hrane po grupama 31-og, 61-og, 91-og, 121-og, 150-og i na kraju ogleda - 283 dana. Rezultati istraživanja su pokazali da su junice iz kontrolne grupe na kraju ogleda imale prosečnu masu 432,73 kg/grlu i konverziju koncentrovane hrane 5,234 kg/kg prirasta, a grla iz O-I grupe prosečnu masu 435,91 kg/grlu i konverziju koncentrovane hrane 5,179 kg/kg prirasta. Cena koštanja proizvedenog prirasta bila je veća za 0,33% (0,31din/kg) kod K grupe u odnosu na O-I grupu, a u pogledu ekonomičnosti proizvodnje, ogledna grupa koja je obrokom dobijala Minazel-Plus (0,2%) imala je ekonomičniju proizvodnju za 0,29%