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Lameness in sheep, especially in semi-extensive breeding of Dubska pramenka, which starts in the interdigital region, was the motive of our morphological and histological research, in order to and in some way, bring the structure of the interdigital sinus in correlation with the appearance of this pathological state that causes extensive economical losses in the domestic sheep breeding,. The anatomical location of the interdigital diverticulum, its histological structure, which point to abundance of sebaceous glands around the hair follicles surrounding the interdigital opening and interdigital glands in deeper layers, point to the suggestion that their secretion increases due to poor hygienic keeping conditions. Pathogens - anaerobic microorganisms, which are most commonly causing the contagious lameness find the ideal conditions for their growth and reproduction because the secretion of these glands is likely "to close" the only "air" communication - interdigital opening.

Hazim Bašić, B. Duraković, A. Softić

The aim of this paper is to test Six Sigma concept developed to optimize the manufacturing process for a company with about 200 employees. This test includes process monitoring, using statistical process control charts, and analyzing collected data for two different periods, before and after DMAIC methodology application. Dominant defect and its causes had been identified and it was found out that the process was not under control. Implementing improvement measures, dominant defect was eliminated but this didn’t enable to put the process under control. As a conclusion, the test indicated that the model is effective but it takes more iterations to achieve the desired state.

A. Softić, Aida Kavazović, A. Gagić, V. Katica, V. Šakić, Maja Varatanović

The possibility of using different probiotic products primarily in animal food represents a special direction in the modern production of broiler meat. Intensive broiler production has been improved in the last few decades especially in the fields of genetics, nutrition and technology, in order to achieve maximum growth broilers, the optimal utilization of food and high yields, especially white meat. Considering the above mentioned research was conducted in order to examine the impact of commercial probiotic products on the body conformation of the carcasses of chickens after 42 days of fattening. In experiment was used a total of 30 chickens provenience Cobb divided into two groups (P and K). Chickens from both groups were vaccinated according to the plan and program of immunoprophylaxis, and selected technical and technological solutions of accommodation, as well as feeding and watering chickens were in accordance with the recommendations of the selectors for the floor system rearing. Chickens of experimental group (P) were given in drinking water, a commercial probiotic Probios ®, a soluble powder for poultry, product of a company Chr. Hansen A / S, Denmark. Probiotic treatment of experimental groups of chickens was conducted the first three days of life and three days during the vaccination of chickens (the day before, on the day and the day after vaccination). Measures of body conformation (the breast circumference, keel length, breast depth, drumsticks circumference, shank length and breast angle) were determined on carcasses after the fattening of 42nd day using standard tools in livestock breeding. The results obtained from this study suggest that the usage of commercial probiotics in broiler chickens in intensive fattening has proved to be statistically significant on tested measure of body conformation.

A. Softić, A. Gagić, V. Katica, Aida Kavazović, V. Šakić, R. Ćutuk, Maja Varatanović

Our aim was to examine the influence of stocking density on the conformation in live broilers of Cobb provenance. A total of 120 chickens of Cobb 500 provenance are divided into three groups with 40 animals each (two experimental and one control group). At the end of the first week of feeding, 20 chickens were sampled and marked by random sampling. Chickens from the first experimental group (P1) represented the group with lower population of stocking density (12 chicks/m 2 ), chickens from the second experimental group (P2) represented the group of chickens with a higher population of stocking density (18 chicks/m 2 ), while the stocking density of the control group (K) chickens was in line with technological recommendations (15 chicks /m 2 ). During the experiment, marked chickens were monitored and measured for the chest circumference, drumstick circumference, length of keel (Crista sterni), breast depth and breast angle on a weekly basis. Measures conformations were taken in live chickens in hanging position with the use of appropriate instruments: millimeter measuring tape, caliper and protractor ZP-3. The results were statistically analyzed, statistically significant differences were noted, and correlation coefficient was determined. The longest circumference and depth of chest, drumstick circumference, and keel length were observed in the control group of chickens by the end of the experiment. The differences in comparison with the experimental groups were not statistically significant. The results indicate that compliance with the production technology can result in better production indicators and other factors including the success of intensive poultry production. Key words: stocking density, conformation, live broiler, Cobb provenance

V. Katica, V. Šakić, R. Ćutuk, A. Softić, A. Katica, N. Mlaćo, Maja Varatanović

Horse breeding is a branch of animal husbandry that keeps loosing its importance in BiH, in particular in the postwar period. Horse population number tends to decline constantly. In 1990, horse population in BiH was about 99.803, in 2004 about 27.156, in 2006 about 25.699, while in 2009 the number decreased to 21.185 with the objective tendency of further decline. These data support the opinion of many livestock breeding experts that horse breeding surely became the most endangered livestock breeding in Bosnia and Herzegovina. Currently, horse population has an estimate of 1000. Only thanks to a number of enthusiasts in horse breeding, horse population has been surviving, sometimes under unbelievable circumstances lacking food, water and adequate accommodation. These facts command a thorough research both phenotypic and genetic, with the goal of complete determination of this horse population. Key words: Horse breeding, Bosnia and Herzegovina mountain horse, free breeding

Lada Lukić-Bilela, J. Mulaomerović, Una Tulić, A. Lačević, A. Softić, V. Katica, N. Pojskić

During the investigation of the Cave at Vrelo Mokranjska Miljacka, the bone remains of the cave bear ( Ursus spelaeus Rosenmuller & Heinroth, 1794) was found. This is the new Pleistocene fauna locality of this extinct species in Bosnia and Herzegovina. Almost complete cranial skeleton belongs to a young adult male. Analyzed morphometric proportions completely fit within the variation range of the Pleistocene cave bear populations in Bosnia and Herzegovina. Key words: Ursus spelaeus , skull, teeth, Cave of Vrelo Mokranjska Miljacka

Lada Lukić-Bilela, J. Mulaomerović, Una Tulić, Adi Habul, A. Softić, V. Katica

Istraživanjem Lukine pecine (Srednja stijena, Ravan planina) nađeni su ostaci pleistocenske faune spiljskog medvjeda Ursus spelaeus Rosenmuller & Heinroth, 1794. U radu donosimo prvi prikaz morfometrijskih proporcija ove vrste sa spomenutog lokaliteta. Analizom su obuhvaceni i novi nalazi iz spilje Megara (Bjelasnica). Dobivene morfometrijske proporcije se u potpunosti uklapaju u opci varijacijski raspon populacija pleistocenske faune spiljskog medvjeda u Bosni i Hercegovini, te su u granicama opceg varijacijskog raspona.

Hazim Bašić, A. Softić

Gauge block calibration is one of the oldest high precision calibrations made in dimensional metrology. Gauge block comparison schemes are designed with a number of characteristics. The unknown length of a block is determined by measuring the difference between it and a reference block of the same nominal size and then calculating the unknown length. The sources of variation in measurements are numerous. Source of serious problems, which is not random, is the drift in the instrument readings. The instrumental drift can be obtained from any comparison scheme with more measurements than the number of unknown lengths plus one for the drift, since the drift rate can be includes a parameter in the model fit. This effect cannot be minimized by additional measurement because it is not generally pseudo-random, but a nearly monotonic shift in the readings. In this paper some techniques for drift eliminating of instrument are discussed.

Lada Lukić-Bilela, J. Mulaomerović, Una Tulić, Adi Habul, A. Softić, V. Katica

During the investigation of the Lukina pecina cave (Srednja stijena, Ravan mountain) the bone remains of the cave bear ( Ursus spelaeus Rosenmuller & Heinroth, 1794) were found. We demonstrate for the first time the morphometric proportions of the cave bear from this locality. Our reasearch also included the new findings from the Megara cave (Bjelasnica). Analyzed morphometric proportions completely fell within the variation range of the Pleistocene cave bear population in Bosnia and Herzegovina, and the general variation range. Key words: Ursus spelaeus, Lukina pecina Cave, Megara, mandible, postcranial skeleton

A. Softić, Hazim Bašić, Sinisa Trifunovic, Mb Frigo

Gauge block calibration is one of the oldest high precision calibrations made in dimensional metrology. Measurement Assurance Method determine calibration or measurement uncertainty based on systematic observations of achieved results. All length measurement processes are comparative operation, directly or indirectly. A comparator is device for measuring difference. The unknown length of a block is determined by measuring the difference between it and a reference block of the same nominal size and then calculating the unknown length. Measurement process is continually affected by perturbations from variety of sources. The uncertainty in the result of measurement generally consists of several components which may be grouped in two categories according to the way in which their numerical values are estimated: A-those which are evaluated by statistical methods and B-those which are evaluated by other means.

A. Softić, Hazim Bašić, Sinisa Trifunovic, Mb Frigo, Sarajevo Bosnia, Herzegovina

Gauge block calibration is one of the oldest high precision calibrations made in dimensional metrology. Measurement Assurance Method determine calibration or measurement uncertainty based on systematic observations of achieved results. All length measurement processes are comparative operation, directly or indirectly. A comparator is device for measuring difference. The unknown length of a block is determined by measuring the difference between it and a reference block of the same nominal size and then calculating the unknown length. Measurement process is continually affected by perturbations from variety of sources. The uncertainty in the result of measurement generally consists of several components which may be grouped in two categories according to the way in which their numerical values are estimated: A-those which are evaluated by statistical methods and B-those which are evaluated by other means. 1. INTRODUCTION A gauge block is a length standard having flat and parallel opposing surfaces. The length of the gauge block is defined at standard reference conditions: temperature 0°C, barometric pressure 101,325 Pa and CO 2 content of air 0,003%. In length measuring by mechanical comparison the length of the test gauge is compared to that of standard gauge and the measured difference in their lengths determines the length of the test gauge. Factors influencing the measurement are: the length calibration of the standard, factors inherent in the comparator equipment used to measure the length difference such as scale linearity and reading capability, gauge geometry with respect to its effect on probing the length difference, the temperature of the environment as it influences the gauge temperatures and etc [1,2].

In this experiment the influence of stocking density on the body conformation of broiler carcasses was investigated. One hundred and twenty broiler chickens were divided into three groups; each group comprised 40 chickens. At the end of the first week of the fattening period 20 chickens in each group were marked by random sampling. The first testing group (P1) represented the one with a lower stocking density (12 chickens per square meter); the second one (P2) with a higher stocking density (18 chickens per square meter), while the control group (K) was set in accordance with the technological recommendations (15 chickens per square meter). Breast circumference, drumstick circumference, keel length (crista sterni), breast depth and breast angle were monitored and measured on a weekly basis. Body conformation measures were determined on the carcasses in a horizontal position with their backs placed on the table. The appropriate instruments such as millimetre tape, caliper and ZP-3 protractor were used. In addition, a weekly live weight and feed consumption were measured. Production results (live weight, gain, feed-to-gain ratio and European Production Index (EPI) were calculated. Carcass grades were calculated based on the mass ratio of the cooled carcass and the live body weight before slaughtering. The research findings have confirmed that overcrowding in production facilities is always risky in regard to the expected production results. In contrast, by fully conforming to the production technology requirements, it is possible to achieve better production results.

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