UTJECAJ SPOLA NA RAZVOJ ŽDREBADI LIPICANSKE PASMINE

The offspring’s development especially in the first months after foaling is crucial for further development. If favourable conditions of feeding, keeping and fancying as well as other important conditions are ensured, a homogenous growth and development of the offspring is obtained. Research was conducted on 44 male and 42 female Lipizzaner breed foals in the first six months after foaling. The measuring of the withers height, chest girth and cannon bone circumference were done seven days after foaling and at the age of six months. Measuring data were processed by the statistical program SPSS/PC (Nie et al., 1975). The processed data of the obtained measurings indicate homogeneity for both male and female foals. The male foals had a little higher values than the female in both measurings, but the differences between sexes were highly significant only in the cannon bone circumference. Correlations among obtained values were positive and ranged between low and very high, with correlation coefficients between r= 0.379 and r=0.843 for male and r=0.338 and r=0.723 for female foals. The differences between the obtained values were significant and highly significant and a little more marked in male foals.Razvoj podmlatka, naročito u prvim mjesecima nakon ždrijebljenja, odlučujući je i za kasniju razvijenost. Ukoliko se u fazi sisanja osiguraju povoljni uvjeti hranidbe, držanja i njege, kao i ostalih uvjeta bitnih za normalan rast i razvoj, dobiva se ujednačeni rast i razvoj podmlatka. Istraživanja su obavljena na 44 muške i 42 ženske ždrebadi lipicanske pasmine u prvih šest mjeseci nakon ždrijebljenja. Izvršena su mjerenja visine grebena, opsega prsa i opsega cjevanice sedam dana nakon ždrijebljenja i u dobi od šest mjeseci. Podaci mjerenja obrañeni su prema statističkom programu SPSS/PC (Nie i sur., 1975.). Obrañeni podaci dobivenih mjerenja ukazuju na ujednačenost, kako za mušku tako i za žensku ždrebad. Muška ždrebad imala su nešto veće vrijednosti nego ženska u oba mjerenja, no razlike izmeñu spolova bile su visoko signifikantne samo u opsegu cjevanice. Korelacijske povezanosti izmeñu dobivenih vrijednosti bile su pozitivne i kretale su se između slabe i vrlo jake, s korelacijskim koeficijentima izmeñu r=0,379 i r=0,843 za mušku te r=0,338 i r=0,723 za žensku ždrebad. Razlike između dobivenih vrijednosti bile su signifikantne i visoko signifikantne te nešto jače izražene kod muške ždrebadi

Prinos krme travno-leguminozne smeše pri različitom vremenu zasnivanja

For comparative testing of the total productivity of mixtures (intercrops) of red clover (Trifolium pratense L.) and Italian ryegrass (Lolium multiflorum L.), a trial was carried out during the 2007-2009 growing seasons at experimental fields of the Institute for Animal Husbandry, Belgrade-Zemun. Intercrops included two red clover varieties (K-17 and Una) and tetraploid Italian ryegrass (K-29t) in different proportional ratios (100:0%, 75:25%, 50:50%, 25:75% and 0:100%). Italian ryegrass sown alone was top-dressed with nitrogen rates of 100 and 200 kg ha-1. Herbage yields and botanical composition were influenced by different sowing times in the first production year. Spring seeded red clover was more persistent and cumulatively yielded, autumn seeded Italian ryegrass produced more dry matter in the mixture than red clover. The trial demonstrates the potential of two red clover cultivars grown either alone or with a suitable Italian ryegrass to achieve and maintain a high output of herbage of good quality in the first production year, with different time of stand establishment. The practical agricultural implications of using ryegrass/clover are discussed.U toku vegetacione sezone 2007-2009 izveden je ogled na eksperimentalnom polju Instituta za stočarstvo, Zemun-Beograd, sa crvenom detelinom i italijanskim ljuljem radi uporednog ispitivanja ukupne proizvodnje biomase smeša. Smeše su uključivale dve sorte crvene deteline (K-17 i Una) i tetraploidnog italijanskog ljulja (K-29t) sa različitim proporcionalnim odnosima (100:0%, 50:50%, 75:25%, 25:75% i 0:100%). Italijanski ljulj sejan u čistom usevu prihranjivan je sa 100 i 200 kg N ha-1. Različito vreme setve uticalo je na prinos krme i botaničku kompoziciju u prvoj proizvodnoj godini. Crvena detelina sejana u proleće bila je otpornija i kumulativno prinosnija, kao i italijanski ljulj sejan u jesen koji je proizveo više suve materije u smeši u odnosu na detelinu. Ogled pokazuje potencijal dve sorte crvene deteline sejane u čistom usevu ili sa italijanskim ljuljem radi dobijanja i održavanja visoke proizvodnje biomase dobrog kvaliteta u prvoj proizvodnoj godini, pri različitom vremenu zasnivanja. Razmatrane su praktične agronomske implikacije korišćenja smeše italijanskog ljulja i crvene deteline

Evaluation of the Intraocular Pressure-Reducing Effect of Latanoprost as Monotherapy in Open-Angle Glaucoma

Objective of this study was to evaluate the intraocular pressure-reducing effect of latanoprost as monotherapy after replacing current dual therapy in glaucoma patients. The 6-months study comprised 189 patients with primary open angle glaucoma who were treated at least 6 months with two different kind of topical medications ( -blockers, pilocarpine, dorzolamide and brimonidine). Due to local side effects, multiple dosing regime and inadequately controlled intraocular pressure (IOP), they where switched to latanoprost 0.005% monotherapy. After switched to latanoprost, mean (IOP) was measured at baseline, after l5 days, 2 and 6 months of treatment. After six-months 178 patients had completed the study. These analyses enrolled all patients (n=189), thus, the Intention-To-Treat (ITT) results were shown instead of the results of the reduced population. IOP was clinically importantly reduced from baseline level. Five patients had uncontrolled IOP. The difference between IOP before (21.9 2.4) and after 15 days (17.4 1.7), 2 months (16.7 1.8) and 6 months (16.6 1.4) was statistically significant (p< 0.001). 90% patients has reached target IOP 18 mm. A conjunctival hyperaemia in 18 (9%), stinging and itching in 7 (4%) patients was reported. Increased iris pigmentation was seen in 3 (2%) patients. The results of this study indicate that dual therapy in open-angle glaucoma can effectively be replaced by latanoprost monotherapy in many patients

Circulating Platelet Aggregates and Progression of Visual Field Loss in Glaucoma

The aim of the study was to assess a relationship between circulating platelet aggregates (CPA) and progression of visual field loss in primary open-angle glaucoma patients. CPA was determined in 27 patients with open-angle glaucoma with nonprogressive visual field loss and 15 patients with open-angle glaucoma and progression of visual field loss. Intraocular pressure (IOP) under topical therapy was <18 mmHg in all patients. CPA in glaucoma patients with progression of visual field loss was not significantly higher than those without visual field progression (p=0.59). In conclusion, our study shows that increased platelet aggregability is not solely responsible for progression of visual field loss in glaucoma patients, and indicates the role of IOP in the pathogenesis of visual field loss

PERMANENT AND SOWN GRASSLANDS IN SERBIA: CURRENT STATE AND TRENDS

Number of cattle in Serbia during two decades of the 21st century shows the tendency of decreasing. The main source for sustainable livestock production in Serbia are grasslands. Permanent grasslands occupy approximately 30% of agricultural land in Serbia, thereby playing an important role in forage production and ecosystem services. The majority of natural meadows and pastures are located in hilly-mountainous regions. The general characteristics of grasslands in the central Balkans are low production and insufficient quality. The yield of permanent grasslands in Serbia is influenced very strongly by climatic conditions, type of grassland and level of organic and mineral fertilization. On areas that are not managed by mowing and fertilizing, forbs make up over half of the plant production.This paper presents some recent experiences and results in livestock feed production obtained from permanent and sown meadows and pastures in Serbia. There is survey of permanent grassland botanical composition and productivity with special emphasis on importance of preserving legume species. Also, recent trials assessed the benefits of mineral and organic fertilizers application in terms of forage production, testing whether the mineral or organic sources improves the stability of the grassland and evaluated response patterns over a large environmental gradient. Nutrient availability in permanent grasslands has a strong influence on plant species biodiversity, plant cover, and species’ dominance in the vegetation canopy. Dry matter yield is very low with high variation in crude protein content, which confirms that grasslands need to be maintained through fertilizer application, with special emphasis being given to the new role of manure enriched by zeolite. The above-stated lead to poor production potential of these grasslands for livestock production, nonetheless offering sustainable means of soil and biodiversity protection in the area

Application of 4-Chlorobutyryl Group as Amino Protective Group in the Synthesis of 7-(D-2-Amino-2-phenylacetamido)-3-methyl-3-cephem-4-carboxylic Acid (Cephalexin)

4-Chlorobutyryl group was used as amino protective group for n(-)-alpha-phenylglycine (I). N-Hydroxysuccinimide ester III was prepared in high yield but partly racemic. Reaction of III or IV with V afforded epimeric mixtures of N,0-protected cephalexins (VI), which can be separated by crystallisation. The 4-chlorobutyryl group in VII was removed under very mild conditions giving cephalexin (IX) in good yield and purity

Comparison of 35 and 50 {\mu}m thin HPK UFSD after neutron irradiation up to 6*10^15 neq/cm^2

We report results from the testing of 35 {\mu}m thick Ultra-Fast Silicon Detectors (UFSD produced by Hamamatsu Photonics (HPK), Japan and the comparison of these new results to data reported before on 50 {\mu}m thick UFSD produced by HPK. The 35 {\mu}m thick sensors were irradiated with neutrons to fluences of 0, 1*10^14, 1*10^15, 3*10^15, 6*10^15 neq/cm^2. The sensors were tested pre-irradiation and post-irradiation with minimum ionizing particles (MIPs) from a 90Sr \b{eta}-source. The leakage current, capacitance, internal gain and the timing resolution were measured as a function of bias voltage at -20C and -27C. The timing resolution was extracted from the time difference with a second calibrated UFSD in coincidence, using the constant fraction method for both. Within the fluence range measured, the advantage of the 35 {\mu}m thick UFSD in timing accuracy, bias voltage and power can be established.Comment: 9 pages, 9 figures, HSTD11 Okinawa. arXiv admin note: text overlap with arXiv:1707.0496

Etiopathogenesis of abomasal displacement in cattle

Abomasal displacement presents topographic gastropathy, where this organ has changed its position, and there is simultaneous dilatation which can vary in intensity. The incidence of this disorder in herds of high-yield dairy cows varies to a great degree (1 to 18 %). Abomasal displacement was established in herds of East-Frisian cows in 1 to 3% animals, and in Holstein cow herds in 5 to 18 % animals. The most frequent abomasal displacement is to the left (88%). There is significant seasonal variation in the incidence of abomasal displacement. About two-thirds of cases of abomasal displacement are diagnosed from October until April. The disorder appears more frequently in cows with repeated lactations. It has been established that it appears after the first calving in 27.8% cases, after the second to fifth calving in 66.7% cases, and after the sixth and seventh calving in 5.5% of the cows. The response of endocrine pancreas B-cells for insulin secretion to hyperglycaemia caused by applying an excess-glucose test is reduced in cows with left abomasal displacement, and there is constant hyperglycaemia in cows with right abomasal displacement. The excess-glucose test indicates a disrupted function of the endocrine pancreas in diseased animals. It has been determined through examinations of Aml genotypes in Holstein cow herds in connection with the appearance of abomasal displacement, that the occurrence of this disorder cannot be attributed to a genetic predisposition