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Urea concentration in sheep’s milk

Darija Bendelja
Neven Antunac   ORCID icon orcid.org/0000-0003-1084-5966 ; Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
Nataša Mikulec   ORCID icon orcid.org/0000-0002-9981-5626
Ivan Vnučec   ORCID icon orcid.org/0000-0002-5190-3045
Tomislav Mašek
Željko Mikulec
Jasmina Havranek

Puni tekst: engleski, pdf (291 KB) str. 3-10 preuzimanja: 814* citiraj
APA 6th Edition
Bendelja, D., Antunac, N., Mikulec, N., Vnučec, I., Mašek, T., Mikulec, Ž. i Havranek, J. (2009). Urea concentration in sheep’s milk. Mljekarstvo, 59 (1), 3-10. Preuzeto s https://hrcak.srce.hr/32932
MLA 8th Edition
Bendelja, Darija, et al. "Urea concentration in sheep’s milk." Mljekarstvo, vol. 59, br. 1, 2009, str. 3-10. https://hrcak.srce.hr/32932. Citirano 19.10.2019.
Chicago 17th Edition
Bendelja, Darija, Neven Antunac, Nataša Mikulec, Ivan Vnučec, Tomislav Mašek, Željko Mikulec i Jasmina Havranek. "Urea concentration in sheep’s milk." Mljekarstvo 59, br. 1 (2009): 3-10. https://hrcak.srce.hr/32932
Harvard
Bendelja, D., et al. (2009). 'Urea concentration in sheep’s milk', Mljekarstvo, 59(1), str. 3-10. Preuzeto s: https://hrcak.srce.hr/32932 (Datum pristupa: 19.10.2019.)
Vancouver
Bendelja D, Antunac N, Mikulec N, Vnučec I, Mašek T, Mikulec Ž i sur. Urea concentration in sheep’s milk. Mljekarstvo [Internet]. 2009 [pristupljeno 19.10.2019.];59(1):3-10. Dostupno na: https://hrcak.srce.hr/32932
IEEE
D. Bendelja, et al., "Urea concentration in sheep’s milk", Mljekarstvo, vol.59, br. 1, str. 3-10, 2009. [Online]. Dostupno na: https://hrcak.srce.hr/32932. [Citirano: 19.10.2019.]
Puni tekst: hrvatski, pdf (325 KB) str. 3-10 preuzimanja: 959* citiraj
APA 6th Edition
Bendelja, D., Antunac, N., Mikulec, N., Vnučec, I., Mašek, T., Mikulec, Ž. i Havranek, J. (2009). Koncentracija ureje u ovčjem mlijeku. Mljekarstvo, 59 (1), 3-10. Preuzeto s https://hrcak.srce.hr/32932
MLA 8th Edition
Bendelja, Darija, et al. "Koncentracija ureje u ovčjem mlijeku." Mljekarstvo, vol. 59, br. 1, 2009, str. 3-10. https://hrcak.srce.hr/32932. Citirano 19.10.2019.
Chicago 17th Edition
Bendelja, Darija, Neven Antunac, Nataša Mikulec, Ivan Vnučec, Tomislav Mašek, Željko Mikulec i Jasmina Havranek. "Koncentracija ureje u ovčjem mlijeku." Mljekarstvo 59, br. 1 (2009): 3-10. https://hrcak.srce.hr/32932
Harvard
Bendelja, D., et al. (2009). 'Koncentracija ureje u ovčjem mlijeku', Mljekarstvo, 59(1), str. 3-10. Preuzeto s: https://hrcak.srce.hr/32932 (Datum pristupa: 19.10.2019.)
Vancouver
Bendelja D, Antunac N, Mikulec N, Vnučec I, Mašek T, Mikulec Ž i sur. Koncentracija ureje u ovčjem mlijeku. Mljekarstvo [Internet]. 2009 [pristupljeno 19.10.2019.];59(1):3-10. Dostupno na: https://hrcak.srce.hr/32932
IEEE
D. Bendelja, et al., "Koncentracija ureje u ovčjem mlijeku", Mljekarstvo, vol.59, br. 1, str. 3-10, 2009. [Online]. Dostupno na: https://hrcak.srce.hr/32932. [Citirano: 19.10.2019.]

Sažetak
Determining urea concentration in milk is a useful indicator for controlling supply of proteins to organisms, as well as the relationship of energy and protein in the food, thus it is finding more and more ways of practical use. The concentration of urea in milk, along with the feeding process, is influenced by a number of other factors such as: breed, stage and sequence of lactation, body mass, daily production and chemical structure of milk, number of somatic cells, season, milking.The goal of the research was to establish the influence of the breed (Island of Krk, East Frisian), lactation stage (beginning, middle and the end) and the herd (3) to the concentration of urea in milk during lactation.For each breed there has been established daily quantity of milk, protein share and the concentration of urea in milk.Statistical analysis of data was conducted by using General Linear Models procedure, SAS program system (1999).The breed of sheep considerably (P<0.001) influenced daily quantity of milk, protein share and the concentration of urea in the milk.East Frisian sheep produced on average almost double the daily quantities of milk (1070 mL) compared to the Krk sheep (588 mL).Protein share and the urea concentration in Krk sheep milk were higher (5.99 % and 35.97 mg/100 mL) then in the milk of East Frisian sheep (5.12 % and 33.31 mg/100 mL).For both breeds the significant influence of lactation stage to the daily milk quantity has been established (P<0.001), that is also for the urea concentration in the milk of Krk sheep (P<0.001), as well as protein share in the milk of East Frisian sheep (P<0.001).Herd influence significantly affected daily milk quantities (P<0.001) and concentration of urea in the milk (P<0.05).The defining of the urea concentration in sheep milk should be occasionally carried out in the Republic of Croatia to establish the standard physiological values typical for the particular sheep breed.

Ključne riječi
sheepmilk; daily milk yield; proteins; urea; stage of lactation; breed; herd

Hrčak ID: 32932

URI
https://hrcak.srce.hr/32932

[hrvatski]

Posjeta: 2.821 *