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Scientific paper - Original scientific paper
Persistence of heat stress effect in dairy cows
Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka, 69 (2018), 1; 30-41. https://doi.org/10.15567/mljekarstvo.2019.0103
Gantner, Vesna; Bobić, Tina; Potočnik, Klemen; Gregić, Maja; Kučević, Denis

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Gantner, V., Bobić, T., Potočnik, K., Gregić, M. & Kučević, D. (2018). Persistence of heat stress effect in dairy cows. Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka, 69. (1), 30-41. doi: 10.15567/mljekarstvo.2019.0103

Gantner, Vesna, et al. "Persistence of heat stress effect in dairy cows." Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka, vol. 69, no. 1, 2018, pp. 30-41. https://doi.org/10.15567/mljekarstvo.2019.0103

Gantner, Vesna, Tina Bobić, Klemen Potočnik, Maja Gregić and Denis Kučević. "Persistence of heat stress effect in dairy cows." Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka 69, no. 1 (2018): 30-41. https://doi.org/10.15567/mljekarstvo.2019.0103

Gantner, V., et al. (2018) 'Persistence of heat stress effect in dairy cows', Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka, 69(1), pp. 30-41. doi: 10.15567/mljekarstvo.2019.0103

Gantner V, Bobić T, Potočnik K, Gregić M, Kučević D. Persistence of heat stress effect in dairy cows. Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka [Internet]. 2018 December 20 [cited 2024 December 09];69(1):30-41. doi: 10.15567/mljekarstvo.2019.0103

V. Gantner, T. Bobić, K. Potočnik, M. Gregić and D. Kučević, "Persistence of heat stress effect in dairy cows", Mljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka, vol. 69, no. 1, pp. 30-41, December 2018. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:151:192603. [Accessed: 09 December 2024]

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Metadata
Title (english)Persistence of heat stress effect in dairy cows
AuthorVesna Gantner
AuthorTina Bobić
AuthorKlemen Potočnik
AuthorMaja Gregić
AuthorDenis Kučević
Author's institutionJosip Juraj Strossmayer University of Osijek
Faculty of Agrobiotechnical Sciences Osijek
(Department of Animal Production and Biotechnology)
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Agronomy
Animal Husbandry
Abstract (english)
In order to determine the persistence of heat stress effect in dairy cows regarding the breed, parity and susceptibility to heat stress, over 1.9 million of test-day records from Holstein and Simmental cows reared in Croatia were used. The persistence of heat stress effect in the subsequent milk recordings was determined in cows that had significant decrease of daily milk yield at different THI threshold value (65, 70, 75, 80, and 85). The obtained results indicate that cows heat stressed at lower THI threshold value had higher proportional drop of daily milk yield in subsequent milk recordings. Also, primiparous and Simmentals experienced higher proportional drop when compared to multiparous and Holsteins. The negative effect of heat stress on daily milk contents that existed in all cows was more pronounced in the 2nd subsequent milk recording. The determined increase of somatic cell count in more heat stress sensitive Holsteins (THI in 65, 70, 75) indicates that Holstein cows, in terms of heat stress, also become more susceptible to mastitis. Finally, the lower was the THI threshold value, the stronger and more persistent was the heat stress effect. Considering the quite probable increase of the frequency of heat stress days, it is necessary to develop an adequate strategy for dairy farming. Aiming the accurate answer to the problem of heat stress in this region, it is necessary to conduct further research on genetic evaluation.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - domestic
Publication versionPublished version
Journal titleMljekarstvo : časopis za unaprjeđenje proizvodnje i prerade mlijeka
Numberingvol. 69, no. 1, pp. 30-41
p-ISSN0026-704X
e-ISSN1846-4025
DOIhttps://doi.org/10.15567/mljekarstvo.2019.0103
URN:NBNurn:nbn:hr:151:192603
Publication2018-12-20
Document URLhttps://hrcak.srce.hr/213420
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-05-30 22:08:01