Naslov
Oxytocin release and milk removal in machine-milked mares

Autori
Džidić, Alen ; Knopf, Lothar ; Bruckmaier, Rupert

Izvornik
Milchwissenschaft-Milk Science International (0026-3788) 57 (2002), 8; 423-424

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
milk removal; mare; oxytocin

Sažetak
In this work oxytocin release and milking characteristics during machine milking of mares were investigated. Two experiments were performed twice each in all animals. In experiment 1 mares were milked twice subsequently and residual milk was collected after milking 2 with injection of oxytocin (10 i.u. i.v.). In experiment 2 mares were also milked twice, but residual milk was collected already after milking 1. Oxytocin concentrations peaked during pre-stimulation and decreased after the teat cups were attached. Total milk yield was 1.1 +/- 0.1 kg during milking 1 and 0.5 +/- 0.1 kg during milking 2 in experiment 1. Residual milk obtained after second milking was 0.7 +/- 0.1 kg. Total milk yield during milking 1 in experiment 2 was also 1.0 +/- 0.1 kg. Residual milk obtained after milking 1 was 0.9 +/- 0.1.kg. As expected there was scarcely milk left in experiment 2 after the residual milk was collected. A short peak without plateau phase characterizes milk flow curves in both experiments. Obviously oxytocin release during machine milking was insufficient for complete udder emptying.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA