Non-genetic factors of udder morphology traits in Istrian ewes
Considering the facts that Istrian sheep is Croatian indigenous breed with the highest milk production, and increasing interest of local farmers for machine milking implementation, the aim of this study was to determine the factors affecting udder morphology traits of Istrian ewes. Ninetythree pureb...
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| Format: | Article |
| Language: | English |
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Croatian Dairy Union
2013-05-01
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| Series: | Mljekarstvo |
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| Online Access: | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=150933 |
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| author | Valentino Držaić Ivan Vnučec Boro Mioč Zvonimir Prpić Vesna Pavić |
| author_facet | Valentino Držaić Ivan Vnučec Boro Mioč Zvonimir Prpić Vesna Pavić |
| author_sort | Valentino Držaić |
| collection | DOAJ |
| description | Considering the facts that Istrian sheep is Croatian indigenous breed with the highest milk production, and increasing interest of local farmers for machine milking implementation, the aim of this study was to determine the factors affecting udder morphology traits of Istrian ewes. Ninetythree purebred Istrian ewes with symmetrical udders and no signs of clinical mastitis, from second to fourth lactation, were used for this study. Average udder depth of Istrian ewes was 15.85 cm, udder width 13.05 cm, udder circumference 39.66 cm, cistern height 1.44 cm, teat position 2.85 (scored from 1 to 5), teat angle 47.32°, teat length 3.43 cm and teat width 2.03 cm. The traits related to udder size (depth, width, and circumference) were significantly (P<0.01) affected by lactation milk yield. These traits were also in high and positive correlations (P<0.01) with daily milk yield. With the increase of parity, the morphological aptitude of udder to mechanical milking become worse, with an increase (P<0.01) of cistern height, teat angle and position. As lactation of Istrian ewes continued morphological traits defining udder aptitude for machine milking improved (decrease of cistern height, teat angle and position). Ewes with two and more lambs had larger udder (P<0.05) than ewes with a single lamb. |
| format | Article |
| id | doaj-art-5907d1b8106f40b7a8ad38daee83aac3 |
| institution | DOAJ |
| issn | 0026-704X 1846-4025 |
| language | English |
| publishDate | 2013-05-01 |
| publisher | Croatian Dairy Union |
| record_format | Article |
| series | Mljekarstvo |
| spelling | doaj-art-5907d1b8106f40b7a8ad38daee83aac32025-08-20T03:19:25ZengCroatian Dairy UnionMljekarstvo0026-704X1846-40252013-05-016327280Non-genetic factors of udder morphology traits in Istrian ewesValentino DržaićIvan VnučecBoro MiočZvonimir PrpićVesna PavićConsidering the facts that Istrian sheep is Croatian indigenous breed with the highest milk production, and increasing interest of local farmers for machine milking implementation, the aim of this study was to determine the factors affecting udder morphology traits of Istrian ewes. Ninetythree purebred Istrian ewes with symmetrical udders and no signs of clinical mastitis, from second to fourth lactation, were used for this study. Average udder depth of Istrian ewes was 15.85 cm, udder width 13.05 cm, udder circumference 39.66 cm, cistern height 1.44 cm, teat position 2.85 (scored from 1 to 5), teat angle 47.32°, teat length 3.43 cm and teat width 2.03 cm. The traits related to udder size (depth, width, and circumference) were significantly (P<0.01) affected by lactation milk yield. These traits were also in high and positive correlations (P<0.01) with daily milk yield. With the increase of parity, the morphological aptitude of udder to mechanical milking become worse, with an increase (P<0.01) of cistern height, teat angle and position. As lactation of Istrian ewes continued morphological traits defining udder aptitude for machine milking improved (decrease of cistern height, teat angle and position). Ewes with two and more lambs had larger udder (P<0.05) than ewes with a single lamb.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=150933mammary glandudder traitsmachine milkingparitystage of lactation |
| spellingShingle | Valentino Držaić Ivan Vnučec Boro Mioč Zvonimir Prpić Vesna Pavić Non-genetic factors of udder morphology traits in Istrian ewes Mljekarstvo mammary gland udder traits machine milking parity stage of lactation |
| title | Non-genetic factors of udder morphology traits in Istrian ewes |
| title_full | Non-genetic factors of udder morphology traits in Istrian ewes |
| title_fullStr | Non-genetic factors of udder morphology traits in Istrian ewes |
| title_full_unstemmed | Non-genetic factors of udder morphology traits in Istrian ewes |
| title_short | Non-genetic factors of udder morphology traits in Istrian ewes |
| title_sort | non genetic factors of udder morphology traits in istrian ewes |
| topic | mammary gland udder traits machine milking parity stage of lactation |
| url | http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=150933 |
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