Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses

Morphological udder traits have recently become of greater interest from farmers to researchers. In dairy ewes, the udder is very important due to its physiological and conformational characteristics. External udder traits were measured in ewes (Ovis aries L.) of nine genotypes (355 ewes) created of...

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Autores principales:	Makovický,Pavol, Nagy,Melinda, Makovický,Peter
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Dairy ewes lactation mammary morphology Ovis aries teat udder measurements
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400006
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spelling	oai:scielo:S0718-583920130004000062018-10-02Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crossesMakovický,PavolNagy,MelindaMakovický,Peter Dairy ewes lactation mammary morphology Ovis aries teat udder measurements Morphological udder traits have recently become of greater interest from farmers to researchers. In dairy ewes, the udder is very important due to its physiological and conformational characteristics. External udder traits were measured in ewes (Ovis aries L.) of nine genotypes (355 ewes) created of the basis of Improved Valachian (IV), Tsigai (T), and Lacaune (LC) breeds (six traits; 1185 data for each trait) during the milking period 2002-2008. Udder measurements were assessed for: udder length (UL), udder width (UW), rear udder depth (RUD), cistern depth (CDE), teat length (TL), and teat angle (TA). Data were processed by restricted maximum likelihood (REML) methodology using a MIXED procedure from the SAS statistical package. All studied parameters were influenced by the genotype (P < 0.001), many of them also by the effect of parity and lactation stage. The exactly detected UL, UW and RUD during the lactation and with the age of ewes expand gradually (P < 0.001). Teat length was greater in older ewes (expanding, with the parity). Indicator TA during lactation worsened. Crosses with 25 to 75% share of genetic dairy breeds (in particular with LC, to a lesser extent ’East Friesian’ -EF) were in most cases larger than the udder cisterns of purebred ewes T and IV. Purebred LC had the largest udders, with the largest cisterns. In conclusion, crosses with specialized dairy breeds have more suitable udders for machine milking than purebred default breeds (T, IV, LC) and are suitable for machine milking.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400006en10.4067/S0718-58392013000400006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Dairy ewes lactation mammary morphology Ovis aries teat udder measurements
spellingShingle	Dairy ewes lactation mammary morphology Ovis aries teat udder measurements Makovický,Pavol Nagy,Melinda Makovický,Peter Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
description	Morphological udder traits have recently become of greater interest from farmers to researchers. In dairy ewes, the udder is very important due to its physiological and conformational characteristics. External udder traits were measured in ewes (Ovis aries L.) of nine genotypes (355 ewes) created of the basis of Improved Valachian (IV), Tsigai (T), and Lacaune (LC) breeds (six traits; 1185 data for each trait) during the milking period 2002-2008. Udder measurements were assessed for: udder length (UL), udder width (UW), rear udder depth (RUD), cistern depth (CDE), teat length (TL), and teat angle (TA). Data were processed by restricted maximum likelihood (REML) methodology using a MIXED procedure from the SAS statistical package. All studied parameters were influenced by the genotype (P < 0.001), many of them also by the effect of parity and lactation stage. The exactly detected UL, UW and RUD during the lactation and with the age of ewes expand gradually (P < 0.001). Teat length was greater in older ewes (expanding, with the parity). Indicator TA during lactation worsened. Crosses with 25 to 75% share of genetic dairy breeds (in particular with LC, to a lesser extent ’East Friesian’ -EF) were in most cases larger than the udder cisterns of purebred ewes T and IV. Purebred LC had the largest udders, with the largest cisterns. In conclusion, crosses with specialized dairy breeds have more suitable udders for machine milking than purebred default breeds (T, IV, LC) and are suitable for machine milking.
author	Makovický,Pavol Nagy,Melinda Makovický,Peter
author_facet	Makovický,Pavol Nagy,Melinda Makovický,Peter
author_sort	Makovický,Pavol
title	Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
title_short	Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
title_full	Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
title_fullStr	Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
title_full_unstemmed	Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses
title_sort	comparison of external udder measurements of the sheep breeds improved valachian, tsigai, lacaune and their crosses
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400006
work_keys_str_mv	AT makovickypavol comparisonofexternaluddermeasurementsofthesheepbreedsimprovedvalachiantsigailacauneandtheircrosses AT nagymelinda comparisonofexternaluddermeasurementsofthesheepbreedsimprovedvalachiantsigailacauneandtheircrosses AT makovickypeter comparisonofexternaluddermeasurementsofthesheepbreedsimprovedvalachiantsigailacauneandtheircrosses
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Comparison of external udder measurements of the sheep breeds Improved Valachian, Tsigai, Lacaune and their crosses

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