Lazarević, Đorđe

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  • Lazarević, Đorđe (3)
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Author's Bibliography

Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans

Marković, Jordan; Petrović, Mirjana; Lazarević, Đorđe; Anđelković, Snežana; Zornić, Vladimir; Vasić, Tanja; Štrbanović, Ratibor

(Research Institute of Mountain Stockbreeding and Agriculture, Troyan, 2023)

TY  - JOUR
AU  - Marković, Jordan
AU  - Petrović, Mirjana
AU  - Lazarević, Đorđe
AU  - Anđelković, Snežana
AU  - Zornić, Vladimir
AU  - Vasić, Tanja
AU  - Štrbanović, Ratibor
PY  - 2023
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/1237
AB  - The importance of perennial
grasses is multiple. They represent the
basis of sustainable animal husbandry
and the basis of the animal feed industry,
forming the staple food of ruminants in
areas with a moderate climate as
components of natural and sown
grasslands, natural and sown meadows
that can be used through mowing,
haylage and silage.
Adequate and advanced management of
perennial grasses results in low prices of forages, significantly lower than
concentrated feed. Italian ryegrass is
characterized by rapid development and
production of a large amount of quality
forage crops.
The aim of this study was to determine
the content of cell wall components in the
dry matter of Italian ryegrass, as
important indicators of dry matter intake
and digestibility depending on the time of
harvesting and the application of nitrogen
mineral fertilizers.
The experiment was set up at the
experimental field of the Institute for
Forage Crops Kruševac, Serbia,
according to a random block system in
three repetitions. The research results
showed that the highest content of NDF
and ADF was found in the treatment with
90 kg N/ha in the I cut, while the highest
amount of lignin was found in the
treatment with 60 kg N/ha in the II cut.
Based on the obtained values for NDF
and ADF, the results showed that the
highest value for the RFV of Italian
ryegrass in the I cut is in the treatment
without the application of N mineral
fertilizers.
AB  - Значението на многогодишните
треви е многопосочно. Те са в
основата на устойчивото
животновъдство и фуражната
промишленост; основна храна за
преживните животни в райони с
умерен климат; компоненти на
естествени и засети пасища,
естествени и засети ливади, които
могат да се използват за сено, сенаж и
силаж. Правилното управление на
многогодишните треви води до ниски цени на фуражите (значително по-
ниски от тези на концентрираните
фуражи). Италианският райграс се
характеризира с бързо развитие и
продуктивност на голямо количество
качествени фуражни посеви. Целта на
настоящето изследване е да се
определи съдържанието на
компонентите в клетъчните стени в
сухото вещество на италиански
райграс, като важни показатели за
поемането и усвояването на сухото
вещество в зависимост от фазата на
реколтиране и внасянето на азотни
минерални торове. Опитът е заложен в
опитното поле на Институт по фуражни
култури в Крушевац, Сърбия, по
произволна блокова методика в три
повторения. Резултатите от
изследването показват, че с най-
високо съдържание на НДВ и КДВ са
тревостоите третирани с 90 kg N/ha (I
откос), а с най-високо съдържание на
лигнин е фуражната маса третирана с
60 kg N/ha (II откос). Въз основа на
стойностите за НДВ и КДВ, е
установено, че при италианския
райграс, с най-висока ОХС е
фуражната маса на житната култура от
I откос, във варианта без внасяне на N
минерални торове.
PB  - Research Institute of Mountain Stockbreeding and Agriculture, Troyan
T2  - Journal of Mountain Agriculture on the Balkans
T1  - Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans
T1  - Компоненти на клетъчните стени на италиански райграс в зависимост от фазата на реколтиране и приложеното азотно торене
EP  - 122
IS  - 3
SP  - 107
VL  - 26
ER  - 
@article{
author = "Marković, Jordan and Petrović, Mirjana and Lazarević, Đorđe and Anđelković, Snežana and Zornić, Vladimir and Vasić, Tanja and Štrbanović, Ratibor",
year = "2023",
abstract = "The importance of perennial
grasses is multiple. They represent the
basis of sustainable animal husbandry
and the basis of the animal feed industry,
forming the staple food of ruminants in
areas with a moderate climate as
components of natural and sown
grasslands, natural and sown meadows
that can be used through mowing,
haylage and silage.
Adequate and advanced management of
perennial grasses results in low prices of forages, significantly lower than
concentrated feed. Italian ryegrass is
characterized by rapid development and
production of a large amount of quality
forage crops.
The aim of this study was to determine
the content of cell wall components in the
dry matter of Italian ryegrass, as
important indicators of dry matter intake
and digestibility depending on the time of
harvesting and the application of nitrogen
mineral fertilizers.
The experiment was set up at the
experimental field of the Institute for
Forage Crops Kruševac, Serbia,
according to a random block system in
three repetitions. The research results
showed that the highest content of NDF
and ADF was found in the treatment with
90 kg N/ha in the I cut, while the highest
amount of lignin was found in the
treatment with 60 kg N/ha in the II cut.
Based on the obtained values for NDF
and ADF, the results showed that the
highest value for the RFV of Italian
ryegrass in the I cut is in the treatment
without the application of N mineral
fertilizers., Значението на многогодишните
треви е многопосочно. Те са в
основата на устойчивото
животновъдство и фуражната
промишленост; основна храна за
преживните животни в райони с
умерен климат; компоненти на
естествени и засети пасища,
естествени и засети ливади, които
могат да се използват за сено, сенаж и
силаж. Правилното управление на
многогодишните треви води до ниски цени на фуражите (значително по-
ниски от тези на концентрираните
фуражи). Италианският райграс се
характеризира с бързо развитие и
продуктивност на голямо количество
качествени фуражни посеви. Целта на
настоящето изследване е да се
определи съдържанието на
компонентите в клетъчните стени в
сухото вещество на италиански
райграс, като важни показатели за
поемането и усвояването на сухото
вещество в зависимост от фазата на
реколтиране и внасянето на азотни
минерални торове. Опитът е заложен в
опитното поле на Институт по фуражни
култури в Крушевац, Сърбия, по
произволна блокова методика в три
повторения. Резултатите от
изследването показват, че с най-
високо съдържание на НДВ и КДВ са
тревостоите третирани с 90 kg N/ha (I
откос), а с най-високо съдържание на
лигнин е фуражната маса третирана с
60 kg N/ha (II откос). Въз основа на
стойностите за НДВ и КДВ, е
установено, че при италианския
райграс, с най-висока ОХС е
фуражната маса на житната култура от
I откос, във варианта без внасяне на N
минерални торове.",
publisher = "Research Institute of Mountain Stockbreeding and Agriculture, Troyan",
journal = "Journal of Mountain Agriculture on the Balkans",
title = "Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans, Компоненти на клетъчните стени на италиански райграс в зависимост от фазата на реколтиране и приложеното азотно торене",
pages = "122-107",
number = "3",
volume = "26"
}
Marković, J., Petrović, M., Lazarević, Đ., Anđelković, S., Zornić, V., Vasić, T.,& Štrbanović, R.. (2023). Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans. in Journal of Mountain Agriculture on the Balkans
Research Institute of Mountain Stockbreeding and Agriculture, Troyan., 26(3), 107-122.
Marković J, Petrović M, Lazarević Đ, Anđelković S, Zornić V, Vasić T, Štrbanović R. Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans. in Journal of Mountain Agriculture on the Balkans. 2023;26(3):107-122..
Marković, Jordan, Petrović, Mirjana, Lazarević, Đorđe, Anđelković, Snežana, Zornić, Vladimir, Vasić, Tanja, Štrbanović, Ratibor, "Cell wall components of Italian Ryegrass depending on the harvest and application of nitrogen fertilizer. Journal of Mountain Agriculture on the Balkans" in Journal of Mountain Agriculture on the Balkans, 26, no. 3 (2023):107-122.

Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar

Marković, Jordan; Lazarević, Đorđe; Bekčić, Filip; Prijović, Mladen; Vasic, Tanja; Živković, Sanja; Štrbanović, Ratibor

(The Scientific Agricultural Society of Finland, 2022)

TY  - JOUR
AU  - Marković, Jordan
AU  - Lazarević, Đorđe
AU  - Bekčić, Filip
AU  - Prijović, Mladen
AU  - Vasic, Tanja
AU  - Živković, Sanja
AU  - Štrbanović, Ratibor
PY  - 2022
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/703
AB  - Red clover (Trifolium pratense L.) is characterized by high dry matter (DM) yield and a high nutritive value. It has a higher concentration of soluble carbohydrate than lucerne and its protein is less degradable in the rumen than lucerne protein. The aim of this study was to quantify the main crude protein (CP) and carbohydrate (CHO) fractions of a tetraploid (4n, cv K-32) and a diploid (2n, cv K-39) red clover cultivar harvested at three stages of development in the spring growth. Results showed that the cultivar and stage of development had a large impact on chemical composition and the protein and carbohydrate fractions determined by the Cornell Net Carbohydrate and Protein System (CNCPS). The rapidly degradable protein fraction (PA) was significantly higher in the tetraploid (272 to 287 g kg-1 CP with advancing plant development) than in the diploid red clover cultivar (214 to 268 g kg-1 CP). Rumen degradable carbohydrate concentration was not affected by cultivar but it was significantly influenced by the stage of development. The concentration of rumen degradable protein decreased from 726 to 655 g kg-1 CP with advancing plant development in the diploid red clover cultivar. In conclusion, the tetraploid red clover cultivar was higher in CP, its protein was more rapidly degradable, and it was characterized by lower concentrations of lignin and unavailable carbohydrate fractions than the diploid cultivar.
PB  - The Scientific Agricultural Society of Finland
T2  - Agricultural and Food Science
T1  - Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar
EP  - 112
IS  - 2
SP  - 104
VL  - 31
DO  - 10.23986/afsci.113478
ER  - 
@article{
author = "Marković, Jordan and Lazarević, Đorđe and Bekčić, Filip and Prijović, Mladen and Vasic, Tanja and Živković, Sanja and Štrbanović, Ratibor",
year = "2022",
abstract = "Red clover (Trifolium pratense L.) is characterized by high dry matter (DM) yield and a high nutritive value. It has a higher concentration of soluble carbohydrate than lucerne and its protein is less degradable in the rumen than lucerne protein. The aim of this study was to quantify the main crude protein (CP) and carbohydrate (CHO) fractions of a tetraploid (4n, cv K-32) and a diploid (2n, cv K-39) red clover cultivar harvested at three stages of development in the spring growth. Results showed that the cultivar and stage of development had a large impact on chemical composition and the protein and carbohydrate fractions determined by the Cornell Net Carbohydrate and Protein System (CNCPS). The rapidly degradable protein fraction (PA) was significantly higher in the tetraploid (272 to 287 g kg-1 CP with advancing plant development) than in the diploid red clover cultivar (214 to 268 g kg-1 CP). Rumen degradable carbohydrate concentration was not affected by cultivar but it was significantly influenced by the stage of development. The concentration of rumen degradable protein decreased from 726 to 655 g kg-1 CP with advancing plant development in the diploid red clover cultivar. In conclusion, the tetraploid red clover cultivar was higher in CP, its protein was more rapidly degradable, and it was characterized by lower concentrations of lignin and unavailable carbohydrate fractions than the diploid cultivar.",
publisher = "The Scientific Agricultural Society of Finland",
journal = "Agricultural and Food Science",
title = "Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar",
pages = "112-104",
number = "2",
volume = "31",
doi = "10.23986/afsci.113478"
}
Marković, J., Lazarević, Đ., Bekčić, F., Prijović, M., Vasic, T., Živković, S.,& Štrbanović, R.. (2022). Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar. in Agricultural and Food Science
The Scientific Agricultural Society of Finland., 31(2), 104-112.
https://doi.org/10.23986/afsci.113478
Marković J, Lazarević Đ, Bekčić F, Prijović M, Vasic T, Živković S, Štrbanović R. Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar. in Agricultural and Food Science. 2022;31(2):104-112.
doi:10.23986/afsci.113478 .
Marković, Jordan, Lazarević, Đorđe, Bekčić, Filip, Prijović, Mladen, Vasic, Tanja, Živković, Sanja, Štrbanović, Ratibor, "Protein and carbohydrate profiles of a diploid and a tetraploid red clover cultivar" in Agricultural and Food Science, 31, no. 2 (2022):104-112,
https://doi.org/10.23986/afsci.113478 . .
2
2

Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures

Marković, Jordan; Vasic, Tanja; Terzic, Dragan; Štrbanović, Ratibor; Knežević, Jasmina; Blagojević, Milomir; Lazarević, Đorđe

(United Arab Emirates University, 2020)

TY  - JOUR
AU  - Marković, Jordan
AU  - Vasic, Tanja
AU  - Terzic, Dragan
AU  - Štrbanović, Ratibor
AU  - Knežević, Jasmina
AU  - Blagojević, Milomir
AU  - Lazarević, Đorđe
PY  - 2020
UR  - https://plantarum.izbis.bg.ac.rs/handle/123456789/677
AB  - The production and utilization of intercropped legume- cereal bi-crops as ruminant feeds is beneficial for many reasons – legumes are rich in terms of protein concentration, whereas cereals are characterized by higher carbohydrate contents. To improve utilization of common vetch-oat mixtures as feed in Serbia, the objective of this investigation was to evaluate the crude protein (CP) and carbohydrate (CHO) fractions in these feeds using the Cornell Net Carbohydrate and Protein System (CNCPS) depending on the stage of plant development and seeding rate of common vetch and oat in the mixtures. The experiment was conducted at the experimental field of Institute for forage crops, Kruševac – Serbia, in 2015. The field trial was arranged in a randomized block design with three replications. In this research, pure stands of common vetch and oat, and their seed mixtures (common vetch:oat – 1:1.5; 1:1 and 1:0.5) were studied harvested at three different cutting stages: beginning of vetch flowering – 10% of flowering; forming the first pods on 2/3 vetch plants and forming green seeds in 2/3 pods. The samples were analyzed for protein and carbohydrate fractions according to CNCPS. Stage of growth affected significantly all carbohydrate and protein fractions, except unavailable PC fraction of crude protein which did not change with plant growth and development. The highest protein fraction was intermediately degraded PB2 fraction of crude protein. The highest carbohydrate fraction was available cell wall – CB3 fraction of carbohydrate. According to the results obtained in these investigations, it was concluded that common vetch-oat mixtures varied significantly with respect to their carbohydrate and protein fraction. Due to lower CC fraction, oat was superior feed in terms of total carbohydrates supply to ruminants. Among all investigated mixtures and pure stand of oat and common vetch, it could be conclude that mixture with 1:1 common vetch-oat rate was superior because of higher CA and CB3 fractions of total carbohydrate and the highest PB2 fraction of crude protein.
PB  - United Arab Emirates University
T2  - Emirates Journal of Food and Agriculture
T1  - Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures
EP  - 896
IS  - 12
SP  - 890
VL  - 32
DO  - https://doi.org/10.9755/ejfa.2020.v32.i12.2223
ER  - 
@article{
author = "Marković, Jordan and Vasic, Tanja and Terzic, Dragan and Štrbanović, Ratibor and Knežević, Jasmina and Blagojević, Milomir and Lazarević, Đorđe",
year = "2020",
abstract = "The production and utilization of intercropped legume- cereal bi-crops as ruminant feeds is beneficial for many reasons – legumes are rich in terms of protein concentration, whereas cereals are characterized by higher carbohydrate contents. To improve utilization of common vetch-oat mixtures as feed in Serbia, the objective of this investigation was to evaluate the crude protein (CP) and carbohydrate (CHO) fractions in these feeds using the Cornell Net Carbohydrate and Protein System (CNCPS) depending on the stage of plant development and seeding rate of common vetch and oat in the mixtures. The experiment was conducted at the experimental field of Institute for forage crops, Kruševac – Serbia, in 2015. The field trial was arranged in a randomized block design with three replications. In this research, pure stands of common vetch and oat, and their seed mixtures (common vetch:oat – 1:1.5; 1:1 and 1:0.5) were studied harvested at three different cutting stages: beginning of vetch flowering – 10% of flowering; forming the first pods on 2/3 vetch plants and forming green seeds in 2/3 pods. The samples were analyzed for protein and carbohydrate fractions according to CNCPS. Stage of growth affected significantly all carbohydrate and protein fractions, except unavailable PC fraction of crude protein which did not change with plant growth and development. The highest protein fraction was intermediately degraded PB2 fraction of crude protein. The highest carbohydrate fraction was available cell wall – CB3 fraction of carbohydrate. According to the results obtained in these investigations, it was concluded that common vetch-oat mixtures varied significantly with respect to their carbohydrate and protein fraction. Due to lower CC fraction, oat was superior feed in terms of total carbohydrates supply to ruminants. Among all investigated mixtures and pure stand of oat and common vetch, it could be conclude that mixture with 1:1 common vetch-oat rate was superior because of higher CA and CB3 fractions of total carbohydrate and the highest PB2 fraction of crude protein.",
publisher = "United Arab Emirates University",
journal = "Emirates Journal of Food and Agriculture",
title = "Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures",
pages = "896-890",
number = "12",
volume = "32",
doi = "https://doi.org/10.9755/ejfa.2020.v32.i12.2223"
}
Marković, J., Vasic, T., Terzic, D., Štrbanović, R., Knežević, J., Blagojević, M.,& Lazarević, Đ.. (2020). Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures. in Emirates Journal of Food and Agriculture
United Arab Emirates University., 32(12), 890-896.
https://doi.org/https://doi.org/10.9755/ejfa.2020.v32.i12.2223
Marković J, Vasic T, Terzic D, Štrbanović R, Knežević J, Blagojević M, Lazarević Đ. Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures. in Emirates Journal of Food and Agriculture. 2020;32(12):890-896.
doi:https://doi.org/10.9755/ejfa.2020.v32.i12.2223 .
Marković, Jordan, Vasic, Tanja, Terzic, Dragan, Štrbanović, Ratibor, Knežević, Jasmina, Blagojević, Milomir, Lazarević, Đorđe, "Protein and carbohydrate fractions of common vetch-oat mixtures depending on stage of growth and seeding rate in the mixtures" in Emirates Journal of Food and Agriculture, 32, no. 12 (2020):890-896,
https://doi.org/https://doi.org/10.9755/ejfa.2020.v32.i12.2223 . .
1