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Vlivy působící na morfologické změny vemene u plemene zwartbles ve stádě Novosedly nad Nežárkou
ČUTA, Jakub
The main goal of this thesis was to obtain and evaluate data parameters of non-dairy sheep's udder traits. During the measurements, 61 zwartbles breed ewes were observed for their udder parameters with following average value; udder depth (14,36 cm), udder width (15,91 cm), teat length (30,5 mm), teat position (2,53 points), udder attachment (2,00 points), udder cleft (3,52 points). Traits of udder size and teat size increased with lactation number respectively age of ewe. Teat position due to the lactation number respectivelly age of ewe increased up to 4th lactation with specific evaluate 2,68 points. Udder cleft had highest (most unprofitable) values in 4th and 5th+ lactation number with values 3,74 and 3,69 points. Lambs mortality caused by disorders of the udder was 23 percent of all dead lambs.
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Vlivy působící na morfologické změny vemene u valašek
KUČERA, Josef
The morphological structure of the udder ofsheep is important due to the possible complications of lamb breeding and the use of machine milking. Bad teats position, short teats are problematic in lambing period and milking machin. Lambs can´t findt too big and horizontal teats.
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Sledování morfologické stavby vemene u nedojených ovcí
KUČERA, Josef
The main objectives of this bachelor thesis are collecting and rating of cured meat sheep´s udder traits. Measurement on 107 sheep shows data which are focused on udder depth, udder width , teat lenght, teat position, udder attachment and udder cleft. Thereafter was assessed influence of litter chronological order on these values. Udder depth average is on level 8.2 centimetres. Udder width average is on level 9.1 centimetres. And teat length is in average 2.5 centimetres. All of these dimensions are growing up to the 4th littler. Since the 5th littler are measured traits in lower level. For the 6th and next litters are the explored values as same as the fifth´s litters. Point value of teat position was done on 2,93 points. It means that this value (2,93) is in suitable interval from 2 to 3, which is the best for lambs. Lambs can find teats without problems. Point value of teat position increases from the first litter (2,70) to the fifth litter (3,23) and then it continues on the same level. Udder attachment oscillates about 2,1 points (average) and there are no changes with chronological order of litter. Udder cleft is fixed on average value 3,84 points.
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