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A stillborn bovine male fetus with abdominal distention, arthrogryposis and atresia ani was presented for diagnostic evaluation. At necropsy, this fetus had a large amount of ascites, urachal obstruction and marked bladder distention. The ventral surface of the bladder had ruptured and attached to the abdominal wall by fibrinous adhesions. There was bilateral hydronephrosis with moderate pelvic dilatation and cortical attenuation. The rectum was filled with meconium but the anus was imperforate. The right forelimb was contracted. The cause(s) of these abnormalities could not be determined; however, we believe that developmental abnormalities during embryogenesis may be the result of chromosomal abnormalities.

We investigated the expression of novel protein kinase C (PKC) delta and theta in the testes of pigs and cattle using Western blot and immunohistochemical analysis. PKC delta and theta are recognized in the testes of pigs and cattle by Western blot analysis. We found in immunohistochemical study that PCK delta was localized in the spermatids of seminiferous tubules, but not in the interstitial cells, while PKC theta was recognized only in the interstitial cells of the testes of in both species. These findings suggest that PKC delta and theta play an important role in the development of spermatozoa and the regulation of androgen in the testicular interstitial cells (probably Leydig cells), respectively.

A 10-day-old male Holstein dairy calf with orthopaedic abnormalities was unable to stand but was alert with a suckle reflex. At necropsy, the calf showed multiple defects, including partial agenesis of the left rib plate, deformed left scapula, shortened left humerus, agenesis of the left kidney, atresia ani and scoliosis. The cause of these anomalies could not be determined. This report is the first to describe partial agenesis of ribs in a calf.

A 10-day old male calf exhibited multiple congenital anomalies of the urinary and gastrointestinal tracts, including renal fusion (horseshoe kidney), ureteral fusion, rectovesicular fistula, and atresia ani. In horseshoe kidney, the organs were fused together at the caudal poles. The left kidney and cranial half of right kidney were shrunken, while the remaining lobules were hypertrophic. Ureters were fused cranially and bifurcated caudally. The terminal rectum was narrowed and connected with the bladder. The anus was imperforate. The cause of these anomalies could not be determined.

韓国在来鶏の雄14羽と雌42羽を計測し, 既報のインドネシア, フィリピンおよびマレーシア在来鶏の計測値と, 多変量解析法および単変量解析法によって比較検討した. その結果, 以下の形態学的特性が明らかにされた. (1)雄の韓国在来鶏はインドネシア在来鶏およびフィリピンとマレーシアの闘鶏型在来鶏とともに最大型群を形成する. (2)この最大型群のなかで, 雄の韓国在来鶏の形はインドネシア在来鶏およびマレーシアの闘鶏型在来鶏に似ているが, フィリピンの闘鶏型在来鶏とは非常に異なっている. (3)雌の韓国在来鶏は計測した雌在来鶏群のなかで最も大きく, さらにフィリピンとマレーシアの非闘鶏型の雄よりも大きい. (4)韓国在来鶏では雌雄間の大きさの差は著しいが, 形の差は大きくない. 本研究では8計測部位が主成分分析に用いられ, そのうち翼長と長骨長が鶏体の大きさと形の識別に, 最も適していることが明らかにされた.