Relationship between udder measurements and milk yield in Bergamasca ewes in Brazil

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

“…The lowest average teat length (32.68 ± 0.721 mm) was found in crosses T × SDB (50% SDB). Lower average results of teat length compared with our results were found by Fernández et al (1995) in 'Churra' (3.83 cm), Emediato et al (2008) in the 'Bergamasca' ewes (2.86 to 2.91 cm), Kahtuei et al (2008) in 'Kermani' (2.64 ± 0.620 cm), respectively Ayadi et al (2011) at 'Sicilo-Sarde' (18.5 ± 4.9 mm) and Altinçekiç and Koyuncu (2011) in 'Kıvırcık', 'Tahirova' and 'Karacabey' ranged from (2.68 ± 0.47 to 2.88 ± 0.38 cm). Values in accordance with ours were found by Rovai et al (2008) in 'Manchega' (42.7 mm) and LC breed at (32.7 mm).…”

“…Similar results were also report by Fernández et al (1995) in 'Churra' (12.18 cm), respectively Altinçekiç and Koyuncu (2011) found the average of UW ranging from (12.28 ± 0.93 to 13.17 ± 1.24 cm) in 'Kıvırcık', 'Tahirova' and 'Karacabey'. Higher values compared with our results were observed by Emediato et al (2008) in 'Bergamasca' (from 16.86 to 17.70 cm), Iñiguez et al (2009) in 'Awassi' (13.5 cm), Kominakis et al (2009) in 'Frizarta' (14.47 ± 0.11 cm) and Sadeghi et al (2013) in 'Lori Bakhtiari' ewes (from 15.1 to 18.4 cm). Lower average values in comparison with our results were indicated by Kahtuei et al (2008) in 'Kermani' (6.02 ± 0.062 cm).…”

“…The study of the anatomical structure of mammary gland is useful for improving milk yield (Salaris et al, 2007;Casu et al, 2008;Emediato et al, 2008;Rovai et al, 2008;Kominakis et al, 2009;Blaščáková and Poráčová, 2009;Sadeghi et al, 2013) and good milking ability (Labussière, 1988;Bruckmaier et al, 1997;Marnet and McKusick, 2001;Bencini et al, 2003;Džidić et al, 2004;Marie-Etancelin et al, 2006;Castillo et al, 2008a;2008b;Makovický et al, 2012;. Animals that store a large proportion of milk in the gland cistern produce more milk, and are more able to tolerate extended milking intervals (Knight and Dewhurst, 1994;Stelwagen et al, 1996;Davis et al, 1998;Ayadi et al, 2003;Salama et al, 2003;Ayadi et al, 2009;Castillo et al, 2009).…”

Evolution of udder morphology, alveolar and cisternal milk compartment during lactation and their relationship with milk yield in Najdi sheep

“…Najdi ewes had shorter teat length than Manchega, Lacaune, Istrian dairy crossbred and Bergamasca ewes (Rovai et al, 1999;Dzidic et al, 2004;Emediato et al, 2008), but in contrary, it had longer teat length than Sicilo-Sarde and Merino Rambouillet dairy ewes (Ochoa-Cordero et al, 2006;Ayadi et al, 2011). The teat lengths of Najdi ewes did not show any change throughout lactation, which is similar to the results reported by Ochoa-Cordero et al (2006) in Merino Rambouillet dairy ewes.…”

Hodowla owiec i produkcja mleka owczego w Polsce i na świecie

“…Odmiennie niż w przypadku kóz, dalsze prace nad nowymi krzyżówkami owiec skupiały się również na uzyskaniu owiec dających mleko bogate w składniki suchej masy, co jest istotne przy produkcji serów (zob. [Bonczar 2001, Degen 2007, Emediato i in. 2008, Haenlein 2007, Talpur, Bhanger i Memon 2009 …”