Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress
Нема приказа
Аутори
Majkić, MiraCincović, Marko R.
Belić, Branislava
Plavsa, Nada
Hristov, Slavča
Stanković, Branislav
Popović-Vranješ, Anka
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The temperature-humidity index (THI) is conventionally used to measure heat stress. The aim of this paper is to determine the influence of THI and THI+metabolic parameters in prediction of milk production. A total of thirty Holstein-Friesian cows were exposed to heat stress and the THI values, milk production and metabolite concentrations were measured on days 0 (in the thermoneutral period), 7 and 14 after the exposure. The average daily THI values obtained were 65 +/- 1.05 (day 0), 75 +/- 1.1 (day 7) and 77 +/- 1.4 (day 14). Heat-stressed cows were found to exhibit a decrease in milk production, contents of glucose and non-esterified fatty acids (NEFA) and the glucose-to-insulin ratio (G:I), whereas the levels of insulin, tumor necrosis factor-alpha (TNF-alpha) and the revised quantitative insulin sensitivity check index (RQUICKI) turned out to be elevated. THI can explain 37% of the milk production variance. The percent variance explained is significantly higher after the addition o...f metabolic parameters in the THI+glucose (58%) and THI+glucose+TNF-alpha (65%) models and non-significantly higher after the addition of other metabolic parameters. Partial correlation analysis showed that a correlation between milk production and THI is significantly dependent on glucose. TNF-alpha showed a tendency to regulate the above-mentioned correlation, while other metabolic parameters showed a non-significant effect on the correlation between THI and milk production. It was concluded that variation in milk production during heat stress could be better predicted when THI is used in combination with glucose and TNF-alpha as a metabolic predictor. The effect of glucose and TNF-alpha in milk production during heat stress would be investigated in the next stage of our research.
Кључне речи:
cows / heat stress / milk production / metabolismИзвор:
Animal Science Papers and Reports, 2019, 36, 4, 359-369Издавач:
- Polish Academy of Sciences
Финансирање / пројекти:
- Provincial Secretariat for Higher Education and Science of Vojvodina [142-451-3646/2016-03]
- Унапређење здравља и добробити високопродуктивних крава идентификацијом и отклањањем стресогених фактора (RS-31062)
- Производња тврдог сира са додатном вредношћу од млека произведеног у органским и самоодрживим системима (RS-31095)
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Majkić, Mira AU - Cincović, Marko R. AU - Belić, Branislava AU - Plavsa, Nada AU - Hristov, Slavča AU - Stanković, Branislav AU - Popović-Vranješ, Anka PY - 2019 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/5128 AB - The temperature-humidity index (THI) is conventionally used to measure heat stress. The aim of this paper is to determine the influence of THI and THI+metabolic parameters in prediction of milk production. A total of thirty Holstein-Friesian cows were exposed to heat stress and the THI values, milk production and metabolite concentrations were measured on days 0 (in the thermoneutral period), 7 and 14 after the exposure. The average daily THI values obtained were 65 +/- 1.05 (day 0), 75 +/- 1.1 (day 7) and 77 +/- 1.4 (day 14). Heat-stressed cows were found to exhibit a decrease in milk production, contents of glucose and non-esterified fatty acids (NEFA) and the glucose-to-insulin ratio (G:I), whereas the levels of insulin, tumor necrosis factor-alpha (TNF-alpha) and the revised quantitative insulin sensitivity check index (RQUICKI) turned out to be elevated. THI can explain 37% of the milk production variance. The percent variance explained is significantly higher after the addition of metabolic parameters in the THI+glucose (58%) and THI+glucose+TNF-alpha (65%) models and non-significantly higher after the addition of other metabolic parameters. Partial correlation analysis showed that a correlation between milk production and THI is significantly dependent on glucose. TNF-alpha showed a tendency to regulate the above-mentioned correlation, while other metabolic parameters showed a non-significant effect on the correlation between THI and milk production. It was concluded that variation in milk production during heat stress could be better predicted when THI is used in combination with glucose and TNF-alpha as a metabolic predictor. The effect of glucose and TNF-alpha in milk production during heat stress would be investigated in the next stage of our research. PB - Polish Academy of Sciences T2 - Animal Science Papers and Reports T1 - Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress EP - 369 IS - 4 SP - 359 VL - 36 UR - https://hdl.handle.net/21.15107/rcub_agrospace_5128 ER -
@article{ author = "Majkić, Mira and Cincović, Marko R. and Belić, Branislava and Plavsa, Nada and Hristov, Slavča and Stanković, Branislav and Popović-Vranješ, Anka", year = "2019", abstract = "The temperature-humidity index (THI) is conventionally used to measure heat stress. The aim of this paper is to determine the influence of THI and THI+metabolic parameters in prediction of milk production. A total of thirty Holstein-Friesian cows were exposed to heat stress and the THI values, milk production and metabolite concentrations were measured on days 0 (in the thermoneutral period), 7 and 14 after the exposure. The average daily THI values obtained were 65 +/- 1.05 (day 0), 75 +/- 1.1 (day 7) and 77 +/- 1.4 (day 14). Heat-stressed cows were found to exhibit a decrease in milk production, contents of glucose and non-esterified fatty acids (NEFA) and the glucose-to-insulin ratio (G:I), whereas the levels of insulin, tumor necrosis factor-alpha (TNF-alpha) and the revised quantitative insulin sensitivity check index (RQUICKI) turned out to be elevated. THI can explain 37% of the milk production variance. The percent variance explained is significantly higher after the addition of metabolic parameters in the THI+glucose (58%) and THI+glucose+TNF-alpha (65%) models and non-significantly higher after the addition of other metabolic parameters. Partial correlation analysis showed that a correlation between milk production and THI is significantly dependent on glucose. TNF-alpha showed a tendency to regulate the above-mentioned correlation, while other metabolic parameters showed a non-significant effect on the correlation between THI and milk production. It was concluded that variation in milk production during heat stress could be better predicted when THI is used in combination with glucose and TNF-alpha as a metabolic predictor. The effect of glucose and TNF-alpha in milk production during heat stress would be investigated in the next stage of our research.", publisher = "Polish Academy of Sciences", journal = "Animal Science Papers and Reports", title = "Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress", pages = "369-359", number = "4", volume = "36", url = "https://hdl.handle.net/21.15107/rcub_agrospace_5128" }
Majkić, M., Cincović, M. R., Belić, B., Plavsa, N., Hristov, S., Stanković, B.,& Popović-Vranješ, A.. (2019). Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress. in Animal Science Papers and Reports Polish Academy of Sciences., 36(4), 359-369. https://hdl.handle.net/21.15107/rcub_agrospace_5128
Majkić M, Cincović MR, Belić B, Plavsa N, Hristov S, Stanković B, Popović-Vranješ A. Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress. in Animal Science Papers and Reports. 2019;36(4):359-369. https://hdl.handle.net/21.15107/rcub_agrospace_5128 .
Majkić, Mira, Cincović, Marko R., Belić, Branislava, Plavsa, Nada, Hristov, Slavča, Stanković, Branislav, Popović-Vranješ, Anka, "Variations in milk production based on the temperature-humidity index and blood metabolic parameters in cows during exposure to heat stress" in Animal Science Papers and Reports, 36, no. 4 (2019):359-369, https://hdl.handle.net/21.15107/rcub_agrospace_5128 .