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Strategija očuvanja ugroženih populacija ovaca podrazumeva morfološku i genetsku karakterizaciju, kao osnovne preduslove za njihovu konzervaciju. Cilj ovog rada je utvrđivanje morfometrijskih osobina,njihovih korelacija i indeksa telesne razvijenosti pirotske pramenke, koja ima status najugroženije populacije u Srbiji.Merenje je sprovedeno na 30 ovaca, uzrasta 3 godine, gajenih na području Stare planine.Deskriptivna statistička procedura je urađena korišćenjem statističkog paketa STATISTICA (version 8). Prosečna visina grebena ovaca je iznosila 56.31cm, dužina trupa 62.93cm, širina grudi 18.37cm, dubina grudi 25.96cm,obim grudi 77.59cm, obim cevanice 6.70cm. Najjača i značajno pozitivna korelacija je (P LT 0.05) je ustanovljena između dubine grudi i visine grebena (0.65), dužine trupa (0.58) i telesne mase (0.56). Pirotska pramenka je imala neznatno veće indekse formata, grudi i masivnosti, u odnosu na vitorogu žuju i travničku pramenku. Navedene morfometrijske osobine upucuju na zakljucak da se, u odnosu na ranija istrazivanja,telesni okvir ovaca pirotske pramenke nije značajnije menjao što znači da nije bilo ukrštanja sa drugim rasama iz razloga geografske izolovanosti i entuzijazma odgajivača da sačuvaju autohtonu pirotsku pramenku koja je iznedrila autentične brendove:pirotsko jagnje, pirotski kačkavalj i pirotski ćilim.Otuda je biološki i moralni imperativ:očuvati ovu visoko ugroženu populaciju., The strategy of conservation of endangered sheep populations implies morphological and genetic characterization, as basic preconditions for their conservation. The aim of this study was to determine the morphometric characteristics, their correlations and the index of physical development of Pirot pramenka, which has the status of the most endangered population in Serbia. The measuring was performed on 30 sheep, aged 3 years, reared in the area of Stara Planina. The descriptive statistical procedure was performed using the statistical package Statistica (version 8). The average height at the withers was 56.31 cm, body length 62.93 cm, chest width 18.37 cm, chest depth 25.96 cm, chest circumference 77.59 cm, shin circumference 6.70 cm. The strongest and significantly positive correlation (P LT 0.05) was found between chest depth and height at withers (0.65), body length (0.58) and body weight (0.56). Pirotska pramenka has slightly higher indices of format, chest and massiveness, in relation to breeds Vitoroga Žuja and Travnik Pramenka. These morphometric traits suggest that, compared to previous research, the body frame of Pirot pramenka sheep did not change significantly, which means that there were no crosses with other breeds due to geographical isolation and enthusiasm of breeders to preserve the indigenous Pirot pramenka which was the starting point for following authentic brands: Pirot lamb, cheese and carpet. Hence the biological and moral imperative: to preserve this highly endangered population.

Determining the degree of correlation between two or more traits depends to a large extent on their manifestation. The knowledge of genetic and phenotypic correlations between body characteristics of the animal and product characteristics can help define the breeding goal, but also to define and harmonize the assessment criteria. Although the phenotypic and genetic correlations between the traits of body development and type and the milk yield show different degrees of variation, they should be taken into account in the final assessment of the breeding value of the animal so that the selection programs are more comprehesively defined. The examination of phenotypic correlations of linear assessment scores of the type, milk and fertility traits was performed on a total of 303 cows of the Simental breed in the first three lactations. The examination of phenotypic correlations included the following milk performance properties in the first three standard lactations: milk yield, milk fat content, milk fat yield, yield of 4% corrected milk; also fertility traits: age at current calving and service period in each lactation; while the linear type scoring included a group of traits: type or frame, muscularity, fundament, udder., Poznavanje fenotipske povezanosti osobina mlečnosti i plodnosti, sa linearnim ocenama tipa je veoma značajno u selekcijskom radu, gde se pored visoke proizvodnje, očekuje dobro zdravlje kao i dug produktivni život grla u stadu. U ovom istraživanju medjusobna pozitivna i potpuna fenotipska povezanost prinosa mleka, mlečne masti i 4% mast korigovanog mleka ustanovljena je u sve tri laktacije, kao i niska i uglavnom pozitivna povezanost pokazatelja prinosa i sadržaja mlečne masti. Niska i uglavnom pozitivna fenotipska povezanost utanovljena je u sve tri laktacije i za pokazatelje mlečnosti i plodnosti, ali i za pokazatelje plodnosti i tipa. Fenotipska povezanost pokazatelja mlečnosti i prosečnih ocena tipa je bila srednje jaka i uglavnom pozitivna za osobine prinosa i slaba i uglavnom negativna izmedju osobina tipa i sadržaja mlečne masti. Fenotipska povezanost ispitivanih osobina pokazuje da se prilikom odabira kako priplodnih junica, tako i semena za oplodnju krava i junica, mora povesti računa i o tipskim karakteristikama, jer će to pored odabira po mlečnosti doprineti ostvarenju veće proizvodnje mleka i bržem genetskom unapredjenju naše populacije.

Major qualitative parameters of Landrace pig carcasses are presented in this paper. Phenotypic correlation between carcass quality indices and meat yield of carcass sides was investigated. Fatteners included in this research (117) were reared in non-conventional conditions, on deep litter, and as litter straw was used. Meat yield of pig carcass sides was evaluated on the slaughter line using the 'two point' method (Džinić et al. 2004) and mathematical model using FOM-device (defined by Petrović et al. 1996). Meat yield of carcass sides estimated using FOM was 56,29%, and by method of 'two points' 53,16%. Of basic quality parameters of pig carcasses the strongest correlation assessed using FOM device was established between meat yield of carcass side and thickens of fat tissue - LF and RF, and using the method of two points, between meat yield of carcass side and thickness of fat tissue - X1 i X2. Established correlations were negative, strong and statistically significant (-0,85**; -0,87**and -0,97**; -0,77**). Results of the assessment of quality of pig carcasses obtained using method of two points (53,16%) and by instrumental method on right carcass sides using FOM device (56,29%) differed, which indicates need to develop new equations for evaluation/assessment of share of muscle tissue in pig carcasses., U radu su prikazani važniji kvalitativni parametri svinjskih trupova rase švedski landras. Ispitivana je i fenotipska povezanost pokazatelja kvaliteta svinjskih trupova sa mesnatošću polutki. Tovljenici obuhvaćeni ovim ispitivanjem (117) držani su u nekonvencionalnim uslovima, na dubokoj prostirci, a kao prostirka u tovu korišćena je slama. Na liniji klanja ocenjena je mesnatost svinjskih polutki metodom 'dve tačke (Džinić et al. 2004) i matematičkim modelom FOM-uređajem (koji su definisali Petrović et al. 1996). Mesnatost polutki procenjena FOM-uređajem iznosila je 56,29%, a metodom 'dve tačke' 53,16%. Od osnovnih pokazatelja kvaliteta svinjskih trupova u najjačoj povezanosti s mesnatošću polutki (procenjene FOM-uređajem) bila je debljina masnog tkiva LF i RF i debljina slanine X1 i X2 (ocenjena metodom 'dve tačke'). Ustanovljene korelacije su bile negativne, jake i statistički značajne (-0,85**; -0,87**i -0,97**; - 0,77**).Dobijeni rezultati vrednovanja kvaliteta svinjskih trupova metodom 'dve tačke' (53,16%) i instrumentalnom metodom na toplim desnim polutkama, FOM-uređajem (56,29%) odstupaju, što ukazuje na potrebu izrade novih jednačina za procenu udela mišićnog tkiva u trupovima svinja.