GLORIA

GEOMAR Library Ocean Research Information Access

X

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Online Resource
    Online Resource
    Direct methods for determination of the egg shell strength
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2021
    In:  Poljoprivredna tehnika Vol. 46, No. 2 ( 2021), p. 1-10
    Details
    In: Poljoprivredna tehnika, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 46, No. 2 ( 2021), p. 1-10
    Abstract: During the manipulation of hen eggs from the farm to the consumer due to action of external forces and weak mechanical strength of shell, the eggs break. The goal of egg producers is to reduce losses when breaking eggs during the production and placement, and thus increase revenues. Each egg can be damaged by external forces whose values are greater than maximum strength of the egg shell. Direct and indirect methods are used to determine the quality of eggs and shell strength. By direct methods, strength of the shell can be determined on the basis of puncture force measurements, impact forces, quasi-static compression forces and free fall forces on a known surface. In our research, a device was constructed for the realization of experiment and a direct method for determining strength of eggs was applied on the basis of measured breaking force of the shell. The device for measuring strength of eggs by the direct method of puncture eggshell was constructed and applied at the Faculty of Technical Sciences and the Faculty of Agronomy in Čačak. Class "M" hen eggs produced on the "Grbović" farm in the vicinity of Čačak were used in the research. The laying hens are a 41-week-old Isa Brown hybrid. During the research, physical characteristics of hen eggs were determined: length, width, index of shape and weight of eggs, as well as weight of the shell, share of the shell in the total mass of eggs, thickness and puncture force of the shell. The results of research show that the length of egg is 57.00 mm, width 44.59 mm with a coefficient of variation from 2.7 to 1.4%. The thickness of egg shell is on average 0.39 mm, in range from 0.377 to 0.416 mm. The share of shell is 10.54% of average weight of eggs (62.43 g). The quality of the tested eggs was quite uniform because the puncture force of egg shell ranged from 20.35 to 23.97 N. The research results are important for cage construction, design of egg collection equipment, design of egg packaging, and applicable in selection for obtaining new genotypes of laying hens with increased resistance to egg breaking.
    Type of Medium: Online Resource
    ISSN: 0554-5587 , 2406-1123
    Uniform Title: Direktne metode za određivanje čvrstoće ljuske jaja
    URL: Article
    DOI: 10.5937/POLJTEH2102001K
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2021
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Equipment and engagement of mechanization on the family agricultural farm
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2021
    In:  Poljoprivredna tehnika Vol. 46, No. 4 ( 2021), p. 74-83
    Details
    In: Poljoprivredna tehnika, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 46, No. 4 ( 2021), p. 74-83
    Abstract: The equipment and engagement of tractor and attached machines were examined on the example of the average family farm Šiljić in Serbia. The research was performed on a registered agricultural farm in the village of Selevac, municipality of Smederevska Palanka. The family farm Šiljić has a total of 5,4 ha of used agricultural land. In production season 2019/2020 wheat was sown on 2 ha and 1 ha of maize, sunflower and triticale each. On the area of 0,4 ha is a backyard and garden. The farm owns a tractor IMT-558, a plough, a disc harrow, a harrow, a sprayer and a trailer, purchased in 1979. The old machinery is in use. The registered family farm Šiljić is insufficiently equipped with mechanization. With a two-axle tractor with a power of 42.65 kW and 5 attached machines cultivates 5.4 ha, so the energy equipment is 8.5 kW/ha. The tractor is mostly engaged in the production of corn 10,0 h/ha, sunflower 9,5 h/ha, triticale 8,33 h/ha and the least is wheat 7,41 h/ha of effective work. On the farm Šiljić, on the area of 5 ha, out of a total of 42,66 hours of work, the tractor was mostly used in the basic tillage 17,0 h or 3,1 h/ha. The tractor is also engaged in pre-sowing soil preparation with a disc harrow 9 h (1,8 h/ha) and a harrow 7 hours (1,4 h/ha), in a transport 5,33 h (1,07 h/ha), in the application of pesticides with a sprayer 4,33 h (0,87 h/ha). In addition to the total effective work in the implementation of certain agro-technical measures in the production of field crops, the tractor was hired at 7,30 hours to leave and return from the plot (auxiliary working hours). Fuel consumption in basic tillage was 18 l/ha, in presowing preparation with a disc harrow 10 l/ha, harrow 5 l/ha and 5 l/ha in the application of pesticides and transport of products.
    Type of Medium: Online Resource
    ISSN: 0554-5587 , 2406-1123
    Uniform Title: Opremljenost i angažovanost mehanizacije na porodičnom poljoprivrednom gazdinstvu
    URL: Article
    DOI: 10.5937/PoljTeh2104074K
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2021
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Determination of hen eggshell stress by the puncture method
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2021
    In:  Journal on Processing and Energy in Agriculture Vol. 25, No. 3 ( 2021), p. 82-85
    Details
    In: Journal on Processing and Energy in Agriculture, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 25, No. 3 ( 2021), p. 82-85
    Abstract: The aim of this study was to design and apply the measuring acquisition system, or a device for determining the limit values of eggshell stress using the puncture method. This study focused on class "L" eggs produced on a laying hen farm in the vicinity of Čačak and determined the external physical properties of egg quality: length, width, shape index and mass. In addition, the following eggshell properties were determined: mass, proportion, thickness, and puncture force. The average egg length was 58.05 mm, width 45.46 mm, and shape index 78.25%. The average egg mass was 65.89 g, and the eggshell ratio 12.76% (8.44 g). The average eggshell thickness was 0.48 mm with a 4.69% coefficient of variation. Results showed that the tested eggs had uniform stress, with an average value of the minimum shell puncture force 26.34 N, with a 0.95% coefficient of variation.
    Type of Medium: Online Resource
    ISSN: 1821-4487
    Uniform Title: Određivanje čvrstoće kokošijih jaja metodom probijanja ljuske
    URL: Article
    DOI: 10.5937/jpea25-32280
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2021
    detail.hit.zdb_id: 2976485-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 4
    Online Resource
    Online Resource
    Analysis of the process of alfalfa seed cleaning using seed processing equipment
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2019
    In:  Journal on Processing and Energy in Agriculture Vol. 23, No. 2 ( 2019), p. 41-45
    Details
    In: Journal on Processing and Energy in Agriculture, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 23, No. 2 ( 2019), p. 41-45
    Type of Medium: Online Resource
    ISSN: 1821-4487
    Uniform Title: Analiza procesa ćišćenja semena lucerke na mašinama za doradu
    URL: Article
    DOI: 10.5937/jpea1901041D
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2019
    detail.hit.zdb_id: 2976485-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 5
    Online Resource
    Online Resource
    Effectiveness of the process of cleaning natural alfalfa (Medicago sativa L.) and red clover (Trifolium pratense L.) seeds
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2020
    In:  Journal on Processing and Energy in Agriculture Vol. 24, No. 1 ( 2020), p. 9-12
    Details
    In: Journal on Processing and Energy in Agriculture, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 24, No. 1 ( 2020), p. 9-12
    Type of Medium: Online Resource
    ISSN: 1821-4487
    Uniform Title: Efektivnost procesa čišćenja naturalnog semena lucerke (Medicago sativa L.) i crvene deteline (Trifolium pratense L.)
    URL: Article
    DOI: 10.5937/jpea24-25504
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2020
    detail.hit.zdb_id: 2976485-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 6
    Online Resource
    Online Resource
    Economic analysis of field crop production on a family farm
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2022
    In:  Acta agriculturae Serbica Vol. 27, No. 53 ( 2022), p. 67-72
    Details
    In: Acta agriculturae Serbica, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 27, No. 53 ( 2022), p. 67-72
    Abstract: An economic analysis of field crop (wheat, corn, triticale and sunflower) production on a family farm, representing a case-study average farm, during one production year involved calculation of production costs, gross margin, economic efficiency and rate of profitability. Calculations showed that the highest amount of gross margin was achieved with corn, followed by sunflower, triticale and wheat. The calculated values of the coefficient of efficiency were in the respective order: 3.59 for corn, 2.16 for sunflower, 1.89 for triticale and 1.79 for wheat. The share of variable costs was also indicated, with special emphasis on high costs of mineral fertilizers and machinery.
    Type of Medium: Online Resource
    ISSN: 0354-9542 , 2560-3140
    URL: Article
    DOI: 10.5937/AASer2253067V
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2022
    detail.hit.zdb_id: 2583523-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 7
    Online Resource
    Online Resource
    Structure of exports and imports of milk and dairy products from Serbia
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2018
    In:  Acta agriculturae Serbica Vol. 23, No. 46 ( 2018), p. 197-211
    Details
    In: Acta agriculturae Serbica, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 23, No. 46 ( 2018), p. 197-211
    Type of Medium: Online Resource
    ISSN: 0354-9542 , 2560-3140
    Uniform Title: Struktura izvoza i uvoza mleka i mlečnih proizvoda iz Srbije
    URL: Article
    DOI: 10.5937/AASer1846197V
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2018
    detail.hit.zdb_id: 2583523-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 8
    Online Resource
    Online Resource
    EQUIPMENT OF FAMILY FARMS WITH AGRICULTURAL MECHANIZATION IN NORTHWEST OF MONTENEGRO
    Journal Agriculture and Forestry ; 2020
    In:  The Journal "Agriculture and Forestry" Vol. 66, No. 3 ( 2020-9-30)
    Details
    In: The Journal "Agriculture and Forestry", Journal Agriculture and Forestry, Vol. 66, No. 3 ( 2020-9-30)
    Type of Medium: Online Resource
    ISSN: 0554-5579 , 1800-9492
    URL: Journal
    URL: Article
    DOI: 10.17707/AgricultForest
    DOI: 10.17707/AgricultForest.66.3.19
    Language: Unknown
    Publisher: Journal Agriculture and Forestry
    Publication Date: 2020
    detail.hit.zdb_id: 2687945-1
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 9
    Online Resource
    Online Resource
    The influence of impurities in natural seeds of alfalfa and red clover on the seed cleaning process
    Centre for Evaluation in Education and Science (CEON/CEES) ; 2021
    In:  Journal on Processing and Energy in Agriculture Vol. 25, No. 1 ( 2021), p. 32-35
    Details
    In: Journal on Processing and Energy in Agriculture, Centre for Evaluation in Education and Science (CEON/CEES), Vol. 25, No. 1 ( 2021), p. 32-35
    Abstract: The paper presents the results of the cleaning process of five different lots of natural alfalfa seeds and five different lots of natural red clover seeds. Natural alfalfa and red clover seeds had 75 % to 77 % purity. The experiment was performed in the seed processing center of the Institute for Forage Crops Kruševac. Seed cleaning is performed on different machines that work on the principle of differences in the physical properties of seeds. Significant parameters that define the quality of seeds after processing on the cleaning equipment are the amount of pure seed, weed seed, the seed of other crops, inert matter, amount of pure processed seed, seed losses and processing output. The obtained results enable the correct adjustment of the equipment for the seed processing, depending on the amount and type of weeds and other impurities found in the natural seed of alfalfa and red clover.
    Type of Medium: Online Resource
    ISSN: 1821-4487
    Uniform Title: Uticaj primesa u naturalnom semenu lucerke i crvene deteline na proces čišćenja semena
    URL: Article
    DOI: 10.5937/jpea25-30920
    Language: English
    Publisher: Centre for Evaluation in Education and Science (CEON/CEES)
    Publication Date: 2021
    detail.hit.zdb_id: 2976485-3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 10
    Online Resource
    Online Resource
    Uporedne eksploatacione karakteristike nekih tipova mašina u spremanju sjenaže
    National and University Library of the Republic of Srpska ; 2013
    In:  АГРОЗНАЊЕ Vol. 14, No. 1 ( 2013-11-15), p. 123-
    Details
    In: АГРОЗНАЊЕ, National and University Library of the Republic of Srpska, Vol. 14, No. 1 ( 2013-11-15), p. 123-
    Abstract: U radu su dati rezultati ispitivanja dvije različite linije mašina u spremanju travne sjenaže i to: linija koju čini pogonski traktor IMT 540 sa samoutovarnom prikolicom sa noževima SIP Pionir 17 (sjenažiranje u horizontalni silo objekat) i traktor IMT 577 DV u agregatu sa rolbalerom sa fiksnom komorom Deutz – Fahr GP 2.50, i motalicom bala u rastegljive folije Sipma Z – 557,  (sjenažiranje u omotane bale). Ispitivanja su vršena u proizvodnim uslovima, na porodičnom poljoprivrednom gazdinstvu u mjestu Mokro (Republika Srpska), sa ciljem da se uporede eksploatacione karakteristike ispitivanih linija. Utvrđivani su slijedeći parametri: brzina kretanja agregata, učinak i zastupljenost pojedinih operacija. Za ocjenu efikasnosti pojedinih načina obavljanja radova, vršena je vremenska analiza (hronometrija) i ispitivanje pojedinih radnih zahvata kod sakupljanja provenute mase, analiza transporta, istovara i skladištenja sjenažne mase. Samoutovarna prikolica Pionir 17 u agregatu sa traktorom IMT 540 Deluxe, u proizvodnim uslovima rada ostvarila je brzinu od 1,73 km/h. Površinski učinak na bazi hronografije iznosio je 0,30 ha/h. Hronometrijom je utvrđeno da je najveći dio vremena utrošen na punjenje prikolice 46,67% , kao i u zastojima 25,05%. Presa za rol bale Deutz-Fahr GP 2.50 u agregatu sa traktorom IMT 577 DV ostvarila je brzinu od 1,62 km/h uz površinski učinak od 0,45 ha/h. Na osnovu hronografije najveći dio vremena utrošen je na proces presovanja tj. Punjenje komore prese biljnom masom I formiranje bale 77,23%, a najmanje vremena je utrošeno na proces vezivanja bale tj. 5,31% od ukupnog radnog vremena.
    Type of Medium: Online Resource
    ISSN: 2233-0070 , 1512-6412
    URL: Article
    DOI: 10.7251/AGRSR1301123J
    Language: Unknown
    Publisher: National and University Library of the Republic of Srpska
    Publication Date: 2013
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...