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.: Home > Animal Science Papers and Reports > 2008 > Volume 26 Number 3 > Edyta Molik1,**, Maciej Murawski1, Genowefa Bonczar2, Edward Wierzchoœ1

Effect of genotype on yield and chemical composition of sheep milk

Edyta Molik1,**, Maciej Murawski1, Genowefa Bonczar2, Edward Wierzchoœ1
1 Department of Sheep and Goat Breeding, Agricultural University of Cracow, al. Mickiewicza 24/28, 30-059 Cracow, Poland, 2 Department of Animal Product Processing, Agricultural University of Cracow, al. Mickiewicza 24/28, 30-059 Cracow, Poland
Abstract :

The study was carried out on three groups of ewes: group 1 – Polish Mountain Sheep (PMS, n=30),
group 2 – prolific Olkuska Sheep (OS, n= 30) and group 3 – F1 PMS × OS crossbreds (n=30). Ewes
were aged 4-5 years, weighed 60±5 kg and were milked twice a day from April to the end of August.
Individual milk yield was recorded at 10 days intervals and every 30th day bulk milk was sampled
to determine its mean chemical composition. During the milking period (i.e. from weaning of lambs) the highest milk yield was achieved by prolific OS while the lowest by PMS ewes (47.1 and 27.1 litres, respectively). Crossbreds yielded on average 31.2 litres of milk, i.e. by 4.1 litres more than PMS ewes. In the milk from first sampling the highest protein content was found in PMS, followed by OS and F1 crossbred ewes.

Keywords :
chemical composition / ewes / milk yield /native breed / sheep

Date Deposited : 08 Aug 2011 10:33

Last Modified : 08 Aug 2011 10:33

Official URL: http://www.ighz.edu.pl/

Volume 26, Number 3, - 2008

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