Nedic, Sreten

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  • Nedic, Sreten (2)
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Author's Bibliography

Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle

Nedic, Sreten; Pantelić, Marija; Vranješ-Đurić, Sanja; Nedic, Drago; Jovanović, Ljubomir J.; Cebulj-Kadunc, Nina; Kobal, Silvestra; Snoj, Tomaz; Kirovski, Danijela

(2017)

TY  - JOUR
AU  - Nedic, Sreten
AU  - Pantelić, Marija
AU  - Vranješ-Đurić, Sanja
AU  - Nedic, Drago
AU  - Jovanović, Ljubomir J.
AU  - Cebulj-Kadunc, Nina
AU  - Kobal, Silvestra
AU  - Snoj, Tomaz
AU  - Kirovski, Danijela
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1894
AB  - Cortisol levels were measured in hair, blood and milk in two different cattle breeds, kept under different breeding conditions and with different genetic merit for milk production. Cows and heifers of Holstein and Busha breeds were selected for the study. Cortisol concentration was determined by immunoassays. Cortisol accumulation was determined in proximal (close to the skin) and distal (far from the skin) segments of the hair shaft. The influence of hair colour and washing prior to extraction and analysis was also examined in order to establish additional factors that may have an impact on hair cortisol concentrations. Concentrations of cortisol determined in the proximal and distal segments of the shaft were significantly higher in Holstein than Busha cows and heifers (P LT 0.05 and P LT 0.01, respectively). In Holstein cows, no significant difference was found between concentrations in black and white hair. In hair washed with isopropanol, cortisol concentration was significantly lower compared to unwashed hair (P LT 0.01). Thus, cortisol concentration in hair varies with the technique of hair processing (washing), but not with colour in Holstein cows. Blood serum cortisol concentrations in Holstein cows and heifers were significantly higher than in Busha cows and heifers, (P LT 0.01 and P LT 0.05, respectively). Milk cortisol in Holstein cows was significantly higher than in Busha cows (P LT 0.05). The higher cortisol concentrations in Holstein cows are assumed to be the result of intensive breeding and physiological adaptation to high milk production.
T2  - Slovenian Veterinary Research
T1  - Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle
VL  - 54
IS  - 4
SP  - 163
EP  - 172
DO  - 10.26873/SVR-398-2017
ER  - 
@article{
author = "Nedic, Sreten and Pantelić, Marija and Vranješ-Đurić, Sanja and Nedic, Drago and Jovanović, Ljubomir J. and Cebulj-Kadunc, Nina and Kobal, Silvestra and Snoj, Tomaz and Kirovski, Danijela",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1894",
abstract = "Cortisol levels were measured in hair, blood and milk in two different cattle breeds, kept under different breeding conditions and with different genetic merit for milk production. Cows and heifers of Holstein and Busha breeds were selected for the study. Cortisol concentration was determined by immunoassays. Cortisol accumulation was determined in proximal (close to the skin) and distal (far from the skin) segments of the hair shaft. The influence of hair colour and washing prior to extraction and analysis was also examined in order to establish additional factors that may have an impact on hair cortisol concentrations. Concentrations of cortisol determined in the proximal and distal segments of the shaft were significantly higher in Holstein than Busha cows and heifers (P LT 0.05 and P LT 0.01, respectively). In Holstein cows, no significant difference was found between concentrations in black and white hair. In hair washed with isopropanol, cortisol concentration was significantly lower compared to unwashed hair (P LT 0.01). Thus, cortisol concentration in hair varies with the technique of hair processing (washing), but not with colour in Holstein cows. Blood serum cortisol concentrations in Holstein cows and heifers were significantly higher than in Busha cows and heifers, (P LT 0.01 and P LT 0.05, respectively). Milk cortisol in Holstein cows was significantly higher than in Busha cows (P LT 0.05). The higher cortisol concentrations in Holstein cows are assumed to be the result of intensive breeding and physiological adaptation to high milk production.",
journal = "Slovenian Veterinary Research",
title = "Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle",
volume = "54",
number = "4",
pages = "163-172",
doi = "10.26873/SVR-398-2017"
}
Nedic, S., Pantelić, M., Vranješ-Đurić, S., Nedic, D., Jovanović, L. J., Cebulj-Kadunc, N., Kobal, S., Snoj, T.,& Kirovski, D. (2017). Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle.
Slovenian Veterinary Research, 54(4), 163-172.
https://doi.org/10.26873/SVR-398-2017
Nedic S, Pantelić M, Vranješ-Đurić S, Nedic D, Jovanović LJ, Cebulj-Kadunc N, Kobal S, Snoj T, Kirovski D. Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle. Slovenian Veterinary Research. 2017;54(4):163-172
Nedic Sreten, Pantelić Marija, Vranješ-Đurić Sanja, Nedic Drago, Jovanović Ljubomir J., Cebulj-Kadunc Nina, Kobal Silvestra, Snoj Tomaz, Kirovski Danijela, "Cortisol Concentrations in Hair, Blood and Milk of Holstein and Busha Cattle" Slovenian Veterinary Research, 54, no. 4 (2017):163-172,
https://doi.org/10.26873/SVR-398-2017 .
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Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures

Vujanac, Ivan; Prodanović, Radiša; Korićanac, Goran; Bojkovski, Jovan; Simeunovic, Predrag; Palamarevic, Milija; Nedic, Sreten; Celeska, Irena; Kirovski, Danijela

(2017)

TY  - JOUR
AU  - Vujanac, Ivan
AU  - Prodanović, Radiša
AU  - Korićanac, Goran
AU  - Bojkovski, Jovan
AU  - Simeunovic, Predrag
AU  - Palamarevic, Milija
AU  - Nedic, Sreten
AU  - Celeska, Irena
AU  - Kirovski, Danijela
PY  - 2017
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/1366
AB  - This study aimed to evaluate glucose-induced insulin response in cows exposed to different temperature-humidity index. Twenty early lactating Holstein-Friesian cows were divided into 2 equal groups based on season, as summer (SU) and spring (SP). SP cows were not exposed to heat stress, while SU cows were exposed to moderate or severe heat stress. Milk production was recorded daily. Starting from day 30 of lactation, intravenous glucose tolerance test (IVGTT) was carried out three times at 30-day intervals. Blood samples were taken before (basal) and after glucose infusion, and glucose and insulin were measured at each sample point. The homeostatic model assessment (HOMA) index was calculated. Milk yield from days 30 to 40 and 64 to 90 of lactation were higher in SP cows than in SU cows. Basal glucose did not differ on days 30 and 60 of lactation, while basal insulin and HOMA were lower in SU compared to SP cows. On day 90 of lactation, SU cows had higher basal glucose, whereas basal insulin and HOMA did not differ. IVGTT results revealed that glucose tolerance was affected by heat stress such that SU cows had higher glucose clearance. Insulin responses to IVGTT did not differ on days 30 and 60 of lactation. Heat stress had a marked effect on insulin secretion on day 90 of lactation, illustrated by higher increments, peak concentrations and area under the curve for insulin in SU cows. Overall, season differences in glucose tolerance depend not only on heat stress and milk production but also on the stage of lactation.
T2  - Acta Veterinaria, Beograd
T1  - Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures
VL  - 67
IS  - 3
SP  - 366
EP  - 382
DO  - 10.1515/acve-2017-0030
ER  - 
@article{
author = "Vujanac, Ivan and Prodanović, Radiša and Korićanac, Goran and Bojkovski, Jovan and Simeunovic, Predrag and Palamarevic, Milija and Nedic, Sreten and Celeska, Irena and Kirovski, Danijela",
year = "2017",
url = "http://vinar.vin.bg.ac.rs/handle/123456789/1366",
abstract = "This study aimed to evaluate glucose-induced insulin response in cows exposed to different temperature-humidity index. Twenty early lactating Holstein-Friesian cows were divided into 2 equal groups based on season, as summer (SU) and spring (SP). SP cows were not exposed to heat stress, while SU cows were exposed to moderate or severe heat stress. Milk production was recorded daily. Starting from day 30 of lactation, intravenous glucose tolerance test (IVGTT) was carried out three times at 30-day intervals. Blood samples were taken before (basal) and after glucose infusion, and glucose and insulin were measured at each sample point. The homeostatic model assessment (HOMA) index was calculated. Milk yield from days 30 to 40 and 64 to 90 of lactation were higher in SP cows than in SU cows. Basal glucose did not differ on days 30 and 60 of lactation, while basal insulin and HOMA were lower in SU compared to SP cows. On day 90 of lactation, SU cows had higher basal glucose, whereas basal insulin and HOMA did not differ. IVGTT results revealed that glucose tolerance was affected by heat stress such that SU cows had higher glucose clearance. Insulin responses to IVGTT did not differ on days 30 and 60 of lactation. Heat stress had a marked effect on insulin secretion on day 90 of lactation, illustrated by higher increments, peak concentrations and area under the curve for insulin in SU cows. Overall, season differences in glucose tolerance depend not only on heat stress and milk production but also on the stage of lactation.",
journal = "Acta Veterinaria, Beograd",
title = "Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures",
volume = "67",
number = "3",
pages = "366-382",
doi = "10.1515/acve-2017-0030"
}
Vujanac, I., Prodanović, R., Korićanac, G., Bojkovski, J., Simeunovic, P., Palamarevic, M., Nedic, S., Celeska, I.,& Kirovski, D. (2017). Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures.
Acta Veterinaria, Beograd, 67(3), 366-382.
https://doi.org/10.1515/acve-2017-0030
Vujanac I, Prodanović R, Korićanac G, Bojkovski J, Simeunovic P, Palamarevic M, Nedic S, Celeska I, Kirovski D. Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures. Acta Veterinaria, Beograd. 2017;67(3):366-382
Vujanac Ivan, Prodanović Radiša, Korićanac Goran, Bojkovski Jovan, Simeunovic Predrag, Palamarevic Milija, Nedic Sreten, Celeska Irena, Kirovski Danijela, "Field Trial on Glucose-Induced Insulin Response in High-Yielding Dairy Cows under Different Environmental Temperatures" Acta Veterinaria, Beograd, 67, no. 3 (2017):366-382,
https://doi.org/10.1515/acve-2017-0030 .