The evolution of mammary glands at different stages in Sarda dairy ewes: preliminary results

被引：3

作者：

Pulina, Giuseppe ^{[1
,2
]}

Colitti, Monica ^{[3
]}

Farinacci, Maura ^{[3
]}

Mazzette, Alessandro

Canu, Giuliana ^{[4
]}

Castro, Natalia Castanares

Nudda, Anna

机构：

[1] Univ Sassari, Dipartimento Sci Zootecn, Fac Agr, I-07100 Sassari, Italy

[2] Agenzia Ric Agr AGRIS Sardegna, Sassari, Italy

[3] Univ Udine, Dipartimento Sci Anim, I-33100 Udine, Italy

[4] Ist Zooprofilatt Sperimentale Sardegna, Sassari, Italy

来源：

ITALIAN JOURNAL OF ANIMAL SCIENCE | 2009年 / 8卷

关键词：

Mammary gland; Tissue morphology; Ewes; Milk; SHEEP;

D O I：

10.4081/ijas.2009.s2.652

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

The significance of cytological evolution of alveolar cells explains differences in milk yield that resulted in a different shape of lactation curve. In this paper, investigation of cellular background for this pattern was studied morphometrically in mammary gland of dairy ewes prior to lambing to involution. The ratio of epithelial to the luminal area was greatest at 7 days from lambing, it diminished on day 30 and 60 of lactation and it increased thereafter on day 150 of lactation and on day 7 of involution. The evolution of mammary tissues shows a clear decrease in stromal mass from prepartum until 60 DIM. Structural changes of mammary tissues during late pregnancy, lactation and dry off, can be used as a basis to estimate the evolution of the number of secretory cells in dairy ewes.

引用

页码：652 / 654

页数：3

共 6 条

[1] Mammary histology and alveolar cell differentiation during late gestation and early lactation in mammary tissue of beef and dairy heifers [J].