Jokić, Živan

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Author's Bibliography

The influence of selenium supplementation of animal feed on human selenium intake in Serbia

Pavlović, Zoran; Miletić, Ivanka; Jokić, Živan; Stevanović, J.; Šobajić, Slađana; Bulat, Zorica

(Institut za stočarstvo, Beograd, 2013)

TY  - JOUR
AU  - Pavlović, Zoran
AU  - Miletić, Ivanka
AU  - Jokić, Živan
AU  - Stevanović, J.
AU  - Šobajić, Slađana
AU  - Bulat, Zorica
PY  - 2013
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1936
AB  - The use of selenium as animal feed supplement in Serbia was approved in 1989 for some categories of pigs, sheep and poultry. From 2000 selenium in animal feed became a requirement for all categories of farm animals. The aim of this study was to determine the consumption of selenium by Serbian livestock and in poultry production between 1990-1991 and 2000-2008 and to analyze the selenium content of meat, milk and eggs sold on Serbian markets to gain insight into human selenium intake. Data indicate a low level of selenium inclusion in animal feed during 1990-1991 compared to during 2000-2008. These results coincide with Serbian regulations. From 2001 an organic form of selenium (selenized yeast) was introduced in small quantities (less than 8% of the total consumed selenium). Analysis of meat, milk and eggs from Serbian markets shows increased selenium levels compared to 1991. However, the estimated total human daily intake in Serbia is 40.9 μg, which is under the recommended quantity. Increasing the quantity of selenium included in animal feed and the substitution of inorganic selenium with selenized yeast could be beneficial for animal health and farm productivity. As a consequence a further improvement in the human selenium status in Serbia should be possible.
AB  - Upotreba selena kao suplementa za stočnu hranu odobrena je u Srbiji 1989. godine za neke kategorija svinja, ovaca i živine. Od 2000. propisan je obavezan sadržaj selena u hrani za sve domaće životinje. Cilj rada bio je istraživanje upotrebe selena za suplementaciju stočne hrane selenom u periodima 1990-1991 i 2000-2008 i analiza sadržaja selena u namirnicama životinjskog porekla. Rezultati ukazuju na povećanu upotrebu selena kao aditiva za stočnu hranu od 2000. i povećan sadržaj selena u svinjskom mesu i jajima u poređenju sa podacima iz 1991. Procenjeni dnevni unos selena stanovnika Srbije je 40.9 μg što je značajno manje od preporučenog dnevnog unosa selena. Povećana upotreba selena u ishrani domaćih životinja, i zamena neorganskih jedinjenja selena seleniziranim kvascem, pored povoljnih efekata na zdravlje i produktivnost životinja, dovela bi do daljeg poboljšanja statusa selena stanovnika Srbije.
PB  - Institut za stočarstvo, Beograd
T2  - Biotechnology in Animal Husbandry
T1  - The influence of selenium supplementation of animal feed on human selenium intake in Serbia
T1  - Uticaj suplementacije stočne hrane selenom na humani status selena
VL  - 29
IS  - 2
SP  - 345
EP  - 352
DO  - 10.2298/BAH1302345P
ER  - 
@article{
author = "Pavlović, Zoran and Miletić, Ivanka and Jokić, Živan and Stevanović, J. and Šobajić, Slađana and Bulat, Zorica",
year = "2013",
abstract = "The use of selenium as animal feed supplement in Serbia was approved in 1989 for some categories of pigs, sheep and poultry. From 2000 selenium in animal feed became a requirement for all categories of farm animals. The aim of this study was to determine the consumption of selenium by Serbian livestock and in poultry production between 1990-1991 and 2000-2008 and to analyze the selenium content of meat, milk and eggs sold on Serbian markets to gain insight into human selenium intake. Data indicate a low level of selenium inclusion in animal feed during 1990-1991 compared to during 2000-2008. These results coincide with Serbian regulations. From 2001 an organic form of selenium (selenized yeast) was introduced in small quantities (less than 8% of the total consumed selenium). Analysis of meat, milk and eggs from Serbian markets shows increased selenium levels compared to 1991. However, the estimated total human daily intake in Serbia is 40.9 μg, which is under the recommended quantity. Increasing the quantity of selenium included in animal feed and the substitution of inorganic selenium with selenized yeast could be beneficial for animal health and farm productivity. As a consequence a further improvement in the human selenium status in Serbia should be possible., Upotreba selena kao suplementa za stočnu hranu odobrena je u Srbiji 1989. godine za neke kategorija svinja, ovaca i živine. Od 2000. propisan je obavezan sadržaj selena u hrani za sve domaće životinje. Cilj rada bio je istraživanje upotrebe selena za suplementaciju stočne hrane selenom u periodima 1990-1991 i 2000-2008 i analiza sadržaja selena u namirnicama životinjskog porekla. Rezultati ukazuju na povećanu upotrebu selena kao aditiva za stočnu hranu od 2000. i povećan sadržaj selena u svinjskom mesu i jajima u poređenju sa podacima iz 1991. Procenjeni dnevni unos selena stanovnika Srbije je 40.9 μg što je značajno manje od preporučenog dnevnog unosa selena. Povećana upotreba selena u ishrani domaćih životinja, i zamena neorganskih jedinjenja selena seleniziranim kvascem, pored povoljnih efekata na zdravlje i produktivnost životinja, dovela bi do daljeg poboljšanja statusa selena stanovnika Srbije.",
publisher = "Institut za stočarstvo, Beograd",
journal = "Biotechnology in Animal Husbandry",
title = "The influence of selenium supplementation of animal feed on human selenium intake in Serbia, Uticaj suplementacije stočne hrane selenom na humani status selena",
volume = "29",
number = "2",
pages = "345-352",
doi = "10.2298/BAH1302345P"
}
Pavlović, Z., Miletić, I., Jokić, Ž., Stevanović, J., Šobajić, S.,& Bulat, Z.. (2013). The influence of selenium supplementation of animal feed on human selenium intake in Serbia. in Biotechnology in Animal Husbandry
Institut za stočarstvo, Beograd., 29(2), 345-352.
https://doi.org/10.2298/BAH1302345P
Pavlović Z, Miletić I, Jokić Ž, Stevanović J, Šobajić S, Bulat Z. The influence of selenium supplementation of animal feed on human selenium intake in Serbia. in Biotechnology in Animal Husbandry. 2013;29(2):345-352.
doi:10.2298/BAH1302345P .
Pavlović, Zoran, Miletić, Ivanka, Jokić, Živan, Stevanović, J., Šobajić, Slađana, Bulat, Zorica, "The influence of selenium supplementation of animal feed on human selenium intake in Serbia" in Biotechnology in Animal Husbandry, 29, no. 2 (2013):345-352,
https://doi.org/10.2298/BAH1302345P . .
6

The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality

Pavlović, Zoran; Miletić, Ivanka; Jokić, Živan; Pavlovski, Zlatica; Skrbić, Zdenka; Šobajić, Slađana

(Humana Press Inc, Totowa, 2010)

TY  - JOUR
AU  - Pavlović, Zoran
AU  - Miletić, Ivanka
AU  - Jokić, Živan
AU  - Pavlovski, Zlatica
AU  - Skrbić, Zdenka
AU  - Šobajić, Slađana
PY  - 2010
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1325
AB  - A 16-week-long experiment was performed to compare the effect of sodium selenite (SS) and selenium-enriched yeast (SY) supplementation on eggshell quality and also to evaluate breaking force correlation with other parameters of shell quality originating from hens fed with selenium supplementation. One hundred Shaver 579 hens (27 weeks old) with similar body size were randomly divided for five dietary treatments: basal diet without selenium supplementation and basal diets with two levels of selenium supplementation (0.4 or 0.8 mg/kg) via SS or SY. No adverse effect of Se inclusion in hen's feed, regardless of its source, on shell breaking force, shell deformation, shape index, shell thickness and shell percentage, were observed throughout the current study (P > 0.05). Moderate correlations were found between breaking force and nondestructive shell deformation for all diets (P  lt  0.05). There was no significant overall correlation between egg breaking force and shell thickness or/and percentage shell in the presence of selenium supplemention (P > 0.05). Shape index in all four selenium-supplemented groups was not related to the breaking force (P > 0.05). Selenium supplementation of up to 0.8 mg/kg, regardless of its source, in the diet of laying hens in their first phase of laying does not adversely affect eggshell quality.
PB  - Humana Press Inc, Totowa
T2  - Biological Trace Element Research
T1  - The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality
VL  - 133
IS  - 2
SP  - 197
EP  - 202
DO  - 10.1007/s12011-009-8422-x
ER  - 
@article{
author = "Pavlović, Zoran and Miletić, Ivanka and Jokić, Živan and Pavlovski, Zlatica and Skrbić, Zdenka and Šobajić, Slađana",
year = "2010",
abstract = "A 16-week-long experiment was performed to compare the effect of sodium selenite (SS) and selenium-enriched yeast (SY) supplementation on eggshell quality and also to evaluate breaking force correlation with other parameters of shell quality originating from hens fed with selenium supplementation. One hundred Shaver 579 hens (27 weeks old) with similar body size were randomly divided for five dietary treatments: basal diet without selenium supplementation and basal diets with two levels of selenium supplementation (0.4 or 0.8 mg/kg) via SS or SY. No adverse effect of Se inclusion in hen's feed, regardless of its source, on shell breaking force, shell deformation, shape index, shell thickness and shell percentage, were observed throughout the current study (P > 0.05). Moderate correlations were found between breaking force and nondestructive shell deformation for all diets (P  lt  0.05). There was no significant overall correlation between egg breaking force and shell thickness or/and percentage shell in the presence of selenium supplemention (P > 0.05). Shape index in all four selenium-supplemented groups was not related to the breaking force (P > 0.05). Selenium supplementation of up to 0.8 mg/kg, regardless of its source, in the diet of laying hens in their first phase of laying does not adversely affect eggshell quality.",
publisher = "Humana Press Inc, Totowa",
journal = "Biological Trace Element Research",
title = "The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality",
volume = "133",
number = "2",
pages = "197-202",
doi = "10.1007/s12011-009-8422-x"
}
Pavlović, Z., Miletić, I., Jokić, Ž., Pavlovski, Z., Skrbić, Z.,& Šobajić, S.. (2010). The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality. in Biological Trace Element Research
Humana Press Inc, Totowa., 133(2), 197-202.
https://doi.org/10.1007/s12011-009-8422-x
Pavlović Z, Miletić I, Jokić Ž, Pavlovski Z, Skrbić Z, Šobajić S. The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality. in Biological Trace Element Research. 2010;133(2):197-202.
doi:10.1007/s12011-009-8422-x .
Pavlović, Zoran, Miletić, Ivanka, Jokić, Živan, Pavlovski, Zlatica, Skrbić, Zdenka, Šobajić, Slađana, "The Effect of Level and Source of Dietary Selenium Supplementation on Eggshell Quality" in Biological Trace Element Research, 133, no. 2 (2010):197-202,
https://doi.org/10.1007/s12011-009-8422-x . .
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The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration

Pavlović, Zoran; Miletić, Ivanka; Jokić, Živan; Šobajić, Slađana

(Humana Press Inc, Totowa, 2009)

TY  - JOUR
AU  - Pavlović, Zoran
AU  - Miletić, Ivanka
AU  - Jokić, Živan
AU  - Šobajić, Slađana
PY  - 2009
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1201
AB  - A 16-week experiment was conducted to compare effects of various levels of sodium selenite (SS) and Se-enriched yeast (SY), on the whole-egg Se content and hen's productivity. One hundred Shaver 579 hens, 27 weeks old, were placed on one of five experimental treatments. Each treatment was replicated four times with five hens per cage. Treatments consisted of feeding a low Se diet without supplementation (basal diet) or basal diet with one of two levels of supplemented Se (0.4 or 0.8 mg/kg) supplied by SS or SY. All supplemented treatments had significantly higher whole-egg Se concentration from basal diet (P  lt  0.05). On the same supplemented level, hens fed on SY had higher egg Se content from hens feed on SS (P  lt  0.001). No effects of dietary treatments on egg weight, percentages of dirty and cracked egg, and feed intake and conversion of feed were observed throughout the trial (P  lt  0.05). In the first 8 weeks, there was no significant difference (P  lt  0.05) in hen-day egg production among treatments. From the ninth week on to the end of the trial, supplementation of SY to hen's diet resulted in a higher egg production than SS (P  lt  0.01).
PB  - Humana Press Inc, Totowa
T2  - Biological Trace Element Research
T1  - The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration
VL  - 131
IS  - 3
SP  - 263
EP  - 270
DO  - 10.1007/s12011-009-8369-y
ER  - 
@article{
author = "Pavlović, Zoran and Miletić, Ivanka and Jokić, Živan and Šobajić, Slađana",
year = "2009",
abstract = "A 16-week experiment was conducted to compare effects of various levels of sodium selenite (SS) and Se-enriched yeast (SY), on the whole-egg Se content and hen's productivity. One hundred Shaver 579 hens, 27 weeks old, were placed on one of five experimental treatments. Each treatment was replicated four times with five hens per cage. Treatments consisted of feeding a low Se diet without supplementation (basal diet) or basal diet with one of two levels of supplemented Se (0.4 or 0.8 mg/kg) supplied by SS or SY. All supplemented treatments had significantly higher whole-egg Se concentration from basal diet (P  lt  0.05). On the same supplemented level, hens fed on SY had higher egg Se content from hens feed on SS (P  lt  0.001). No effects of dietary treatments on egg weight, percentages of dirty and cracked egg, and feed intake and conversion of feed were observed throughout the trial (P  lt  0.05). In the first 8 weeks, there was no significant difference (P  lt  0.05) in hen-day egg production among treatments. From the ninth week on to the end of the trial, supplementation of SY to hen's diet resulted in a higher egg production than SS (P  lt  0.01).",
publisher = "Humana Press Inc, Totowa",
journal = "Biological Trace Element Research",
title = "The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration",
volume = "131",
number = "3",
pages = "263-270",
doi = "10.1007/s12011-009-8369-y"
}
Pavlović, Z., Miletić, I., Jokić, Ž.,& Šobajić, S.. (2009). The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration. in Biological Trace Element Research
Humana Press Inc, Totowa., 131(3), 263-270.
https://doi.org/10.1007/s12011-009-8369-y
Pavlović Z, Miletić I, Jokić Ž, Šobajić S. The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration. in Biological Trace Element Research. 2009;131(3):263-270.
doi:10.1007/s12011-009-8369-y .
Pavlović, Zoran, Miletić, Ivanka, Jokić, Živan, Šobajić, Slađana, "The Effect of Dietary Selenium Source and Level on Hen Production and Egg Selenium Concentration" in Biological Trace Element Research, 131, no. 3 (2009):263-270,
https://doi.org/10.1007/s12011-009-8369-y . .
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