Naslov
Teat-end hyperkeratosis in dairy cows

Autori
Bobić, Tina ; Mijić, Pero ; Gantner, Vesna ; Gregić, Maja ; Bab an, Mirjana ; Bagarić, Ante

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of International symposium on animal science 2016 / Prof.dr. Zoran Popović - Beograd, 2016, 310-318

ISBN
978-7834-261-5

Skup
International symposium on animal science 2016

Mjesto i datum
Beograd, Srbija, 24.11.2016. - 25.11.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
dairy cows ; milking ; teat-end hyperkeratosis ; assessment of teat-end hyperkeratosis ; mastitis

Sažetak
Classification of teat tissue conditions in cows can be used in assessment of influences caused by milking management, milking equipment or the environment on the teat tissue and in assessment of risks of mammary glands infection. Influences of those factors cause short-term, medium and long-term consequences on the teat tissue. Short- term consequences refer to changes of teat color after milking, teat base swelling, swelling of teat end, and opening of the teat end (teat canal). Medium- term consequences refer to changes in teat skin condition, while long-term consequence is known as hyperkeratosis. From a physiological point of view, hyperkeratosis refers to excessive accumulation of keratin due to normal physiological response of the body to forces that press the teat skin during milking, either by a milking machine, by hand or by a sucking calf. There are many factors that can lead to hyperkeratosis, the most common of which are: shape of teat end, amount of milk, maximum milk flow, duration of milking and post- milking, order and stage of lactation, appearance of teat tissue and the relations between milking management and milking machine. Total time per day with a milk flow lower than 1 kg/min seems to influence the level of hyperkeratosis, which is connected with the ascending phase of milking, i.e. with the release rate of milk (after preparation of a cow and adjusting of a milking machine) and the milk flow rate and milking duration. Increased hyperkeratosis occurs with the appearance of bimodal release of milk or with too long subsequent milking. Increased thickening or roughness of teat end makes cleaning of teats more difficult and enables occurrence of lesions in this area, which increases the risk of mastitis. There are several methods to classify teat end and teat skin condition, one of which is determined according to Britt and Farnsworth, 2005. It is necessary to maintain good condition of cow teats, especially the skin moisture that provides natural elasticity and greater resistance to occurrence of thickening. This can be achieved by good milking management, by hygiene milking, by quality preparation of cows for milking, as well as by good protection of teats at the end of milking.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

POVEZANOST RADA