Pregled bibliografske jedinice broj: 529618
The impact of environmental factors on the milk ejection and stress of dairy cows
The impact of environmental factors on the milk ejection and stress of dairy cows // Biotechnology in animal husbandry, 27 (2011), 919-927 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 529618 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
The impact of environmental factors on the milk
ejection and stress of dairy cows
Autori
Bobić, Tina ; Mijić, Pero ; Knežević, Ivan ; Šperanda, Marcela ; Antunović, Boris ; Baban, Mirjana ; Sakač, Maja ; Frizon, Emilija ; Koturić, Tomislav
Izvornik
Biotechnology in animal husbandry (1450-9156) 27
(2011);
919-927
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
stress ; milk ejection ; oxytocin ; β-endorphin ; cortisol
Sažetak
Farm breeding of cattle is organized so that the animals are kept in a controlled environment (an closed corner, feeding time, milking time, workers), where daily animal encounter with familiar sounds, smells, movements and equipment. Any positive or negative change of environment causes certain physiological reactions of cattle on it. Negative stimuli (relocation, new technological activities, unidentified sounds and people) disrupt the homeostasis of the animals and lead them into a state of stress. During stress in cattle appears central inhibition of milk ejection from the alveoli of the udder, causing its incomplete emptying which could lead to pathological changes. In stressful situation, there is a connection between nervous (SA system), endocrine (HPA-axis) and the immune system. Stimuli from the outside were obtained through sight, hearing, smell and touch, leading to nerve impulses which then activate the endocrine system (increased levels of cortisol, β-endorphin, adrenaline, and reducing levels of oxytocin in the blood), whose actions over a long time lead to decline in immune response and susceptibility to disease. Many studies suggest an association between central inhibition of milk ejection and stressful situations (first milking of primiparious cattle, environment changes), but the very principle of inhibition is not fully understood. Some studies indicate an association between endogenous opioids (β- endorphin) and catecholamines (adrenalin) in the central inhibition of milk ejection, however, there is still no clear evidence and there is still plenty to do in this area.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
POVEZANOST RADA
Projekti:
079-0793448-3598 - Čiste hranjive tvari u optimalizaciji obroka monogastričnih životinja (Domaćinović, Matija, MZOS ) ( CroRIS)
079-0790466-0601 - Analiza i genetsko unapređivanje sportskih pasmina konja u Hrvatskoj (Baban, Mirjana, MZO ) ( CroRIS)
079-0793448-3572 - Značajke protoka mlijeka pri strojnoj mužnji krava (Mijić, Pero, MZOS ) ( CroRIS)
Ustanove:
Fakultet agrobiotehničkih znanosti Osijek
Profili:
Maja Gregić
(autor)
Boris Antunović
(autor)
Tina Bobić
(autor)
Pero Mijić
(autor)
Ivan Knežević
(autor)
Mirjana Baban
(autor)
Marcela Šperanda
(autor)