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

Small Ruminant Research

Volumn 75, Issue 2-3, 2008, Pages 232-235

  Emediato, R M S ^a   Siqueira, E R ^a   Stradiotto, M M ^a   Maesta S A ^a   Fernandes, S ^a  

^a SÃO PAULO STATE UNIVERSITY UNESP   (Brazil)

Author keywords

Correlation; Mammary glands; Milk yield; Sheep

Indexed keywords

OVIS ARIES;

EID: 38349137100     PISSN: 09214488     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.smallrumres.2007.11.006     Document Type: Article

References (19)

1. Bruckmaier R.M., and Blum J.W. Oxytocin release and milk removal in ruminants. J. Dairy Sci. 81 (1998) 939-949
2. Carta A., Sanna S., Ruda S., and Casu S. Genetic aspects of udder morphology in Sarda primiparous ewes. Milking and Milk Production of Dairy Sheep and Goats (1999), EAAP Publication no. 95, Wageningen Pers pp. 363-368
3. Chene N., Martal J., and Charrier J. Ovine chorionic somatomammotropin and fetal growth. Reprod. Nutr. Dev. 28 (1988) 1707-1730
4. Church D.C. Alimentos y Alimentacion del Ganado vol. 2 (1984), Hemisferio Sur, Montevideo 404 pp.
5. Fernández G., Alvarez P., San Primitivo F., and De la Fuente L.F. Factors affecting variation of udder traits of dairy ewes. J. Dairy Sci. 78 (1995) 842-849
6. Fernández G., Baro J.A., De la Fuente L.F., and San Primitivo F. Genetic parameters for linear udder traits in dairy ewes. J. Dairy Sci. 80 (1997) 601-605
7. Fuente L.F., Fernandez G., and San Primitivo F. A linear evaluation system for udder traits of dairy ewes. Livest. Prod. Sci. 45 (1996) 171-178
8. Gargouri A., Caja G., Such X., Casals R., Ferret A., Vergara H., and Peris S. Effect of suckling regime and number of milking per day on the performance of Manchega dairy ewes. 5th International Symposium on Machine Milking of Small Ruminant Research. Hungarian J. Anim. Prod. Suppl. 1 (1993) 468-483
9. Gonzalo, C. 1984. Contribuición al estúdio del ordeno manual y mecânico del ganado ovino en la región Castellano-Leonesa (study of the hand and machine milking of ewes from Castellano-Leonesa region). Tesis Doctoral, Universidad de Mursia, 183 pp.
10. Izadifard J., and Zamiri M.J. Lactation performance of two Iranian fat-tailed sheep breeds. Small Rumin. Res. 24 (1997) 69-76
11. Labussière J. Review of physiological and anatomical factors influencing the milking ability of ewes and the organization of milking. Livest. Prod. Sci. 18 (1988) 253-274
12. Marnet P.G., and McKusick B.C. Regulation of milk ejection and milkability in small ruminants. Livest. Prod. Sci. 70 (2001) 125-133
13. Marnet P.G., and Negrão J.A. The effect of a mixed-management system on the release of oxytocin, prolactin, and cortisol in ewes during suckling and machine milking. Reprod. Nutr. Dev. 40 (2000) 271-281
14. National Research Council. Nutrient Requirements of Sheep. sixth revised ed. (1985), Natl. Acad. Sci., Washington, DC 112 pp.
15. Owen, J.B., 1975. Milk Production in Sheep. Agriculture LXII, pp. 62-110.
16. Rovai, M., 2001. Caracteres morfológicos y fisiológicos que afectam la aptitud al ordeno mecânico em ovejas de raza Manchega e Lacaune (Morphological and physiological traits that affect milkability in Manchega and Lacaune ewes). Tesis Doctoral, Faculdat de Veterinária, Universitat Autônoma de Barcelona, 281 pp.
17. Rovai M., Such X., Piedrafita J., Caja G., and Pujol M.R. Evolution of mammary morphology traits during lactation and its relationship with milk yield of Manchega and Lacaune dairy sheep. Milking and Milk Production of Dairy Sheep and Goats (1999), EAAP Publication no. 95, Wageningen Pers pp. 93-94
18. Thompson J.R., Lee K.L., Freeman A.E., and Johnson L.P. Evaluation of linear type appraisal system for Holstein cattle. J. Dairy Sci. 66 (1983) 325-331
19. Universidade Federal de Viçosa UFV, 1997. Sistema de análise estatística e genética (statistical and genetic analysis system), Viçosa, MG, Brasil, 150 pp.