Tautenhahn Annegret, Binder Stefanie, Pilz Madlen, Thiele Gerhard
Tierarztl Prax Ausg G Grosstiere Nutztiere. 2018 Feb;46(1):44-49. doi: 10.15653/TPG-160900. Epub 2018 Feb 21.
The present case describes an unusual lactation of a 15-month-old,unbred Holstein-Friesian heifer, which had four swollen, ampouleshaped udder quarters with milk secretion. Examination of the heifer using rectal palpation and transrectal ultrasonography revealed enlargement of the right ovary and partial replacement of original tissue by multiple cysts of variable size. Treatment of the assumed follicularcystic ovary disease was unsuccessful. At slaughter 8 months later, the ovaries were examined pathologically and a granulosa cell tumor on the right ovary was diagnosed. Udder development and lactation in cattle is regulated normally hormonally. Follicular and cystic changes and granulosa cell tumors may also display hormonal activity. Therefore, we assume one or both of these could have been the cause of the unusual lactation in this case. We thus advise careful examination of the inner reproductive tract when facing the symptom of unusual lactation in unbred heifers.
本病例描述了一头15月龄、未育的荷斯坦-弗里生小母牛出现的异常泌乳情况，该牛有四个乳腺肿大、呈壶腹状且有乳汁分泌。通过直肠触诊和经直肠超声检查该小母牛，发现右侧卵巢增大，原始组织被多个大小不一的囊肿部分取代。对假定的卵泡囊肿性卵巢疾病的治疗未成功。8个月后屠宰时，对卵巢进行了病理检查，诊断出右侧卵巢有颗粒细胞瘤。牛的乳腺发育和泌乳通常受激素调节。卵泡和囊肿变化以及颗粒细胞瘤也可能表现出激素活性。因此，我们推测这些情况中的一种或两种可能是该病例异常泌乳的原因。因此，我们建议在面对未育小母牛异常泌乳症状时，仔细检查其内部生殖道。
