Die Fruchtbarkeit beim Rind und ihre Beziehungen zu Stallsystemen und verschiedenen anderen EinflußgrösZen

Inhalt: Die Untersuchungen im Bereich der Besamungsstation Herbertingen um fassen Daten aus 41 Betrieben mit insgesamt 479 Kiihen, die sich etwa gleichmagig auf FV und SB verteilen. In die Verarbeitung der Daten wurden in erster Linie Besamungsindex, Zwischenkalbereit, Giistreit und Rastzeit, daneben auch Abkalbequote, Weidehaltung, Laktationsnummer und Milchleistung einbezogen. Ausgewertet wurde mit Hive der LSQ-Analyse nach Harvey (1960) und der Regressionsanalyse. Die LSQ-Analyse laßt nur bei der Aufstallung und der Wechselwirkung rwischen Aufstallung und Rasse einen signifikanten Einfluj3 auf die Fruchtbarkeitsrnerkmale erkennen. Diese werden vom Aufstallungssystem starker beeinfluflt als von der Rasse. Die Auswertung nach Betrieben mittels Regressionsanalyse bringt insgesamt eine Bestatigung der Auswertung nach Tieren mit der LSQ-Analyse.     

Die Arterien der männlichen Geschlechtsorgane Japanischer Wachteln (Coturnix coturnix japonica) und ihre Entwicklung nach dem Schlupf

A total of 83 male Japanese quails of the following age groups were used for this study: 11, 18, 25, 32, 35, 37, 39, 41, 43 days, and 7, 9, 17 weeks after hatching. Neoprene-Latex, Tensol-Cement, and the china ink were injected via the aortic arch. In most of male Japanese quails, the testes are supplied by the A. testicularis originated from the Aorta descendens through a common trunk with the A. renalis cranialis. But in only 3 quails had this artery originated directly from the Aorta descendens on either side. In 9 quails had the A. testicularis accessoria originating independently from the Aorta descendens and running cranially or caudally in short distance to the normal A. testicularis. The arteries for the Ductus deferens were divided into 3 categories. The Rami ureterodeferentiales craniales were spread out from A. testicularis or Rami epididymales. The Rami ureterodeferentiales medii came from the A. renalis media and the A. renalis caudalis. The Rami ureterodeferentiales caudales originated from the A. caudae lateralis and A. pudenda. The Receptaculum ductus deferentis, the Corpus vasculare paracloacalis and the Phallus nonprotrudens in the Cloaca were supplied from the thick Ramus cloacalis of the A. pudenda. The Ramus bursalis of this artery supplied the Glandula proctodaealis and the Bursa cloacalis, and was also thick. The arteries to the genital organs were observed in the 11 day old male quail. The A. pudenda began developing at about 30 days after hatching when the quail's body matured. While the A. testicularis began developing at about 40 days after hatching when the male Japanese quail was full of the spermatogenic activity.     

Die Arteriae cerebri bei Meriones unguiculatus

The Aa. cerebri were examined through corrosion casts in 20 jirds ("Gerbils") Meriones unguiculatus. The variations in the break-up of the vessels are given schematically.     

Die Arterien der Articulatio coxae und des proximalen Femurabschnittes bei der Katze (Felis catus)*

The arterial blood supply of the hip joint and the proximal end of the femur was studied grossly and microscopically in 40 cats. The aim of the study was to provide clinicians with an overview of the arterial supply to the area. The findings were discussed and compared with those in dogs reported in the literature.     

Die Behandlung Der Mittelohrentzundung (Otitis Media) Beim Hund

Zusammenfassung— Der Verfasser gibt einen Überblick über die Literatur uber die Mittel-ohrentzündung beim Hund. In dieser Arbeit, die sich auf eine Untersuchung von 100 normalen Hunden begründet, werden die strukturellen Abweichungen und das Aussehen des Trommelfells beschrieben und mit den Veränderungen verglichen, die in 100 otitischen Ohren beobachtet wurden, von denen 50 neue Fälle und 50 alte Fälle sind, die chirurgisch behandelt worden sind. Die Häufigkeit der Mittelohrentzündung wird in den zwei otitischen Gruppen, die untersucht worden sind, angegeben. Die bei der Untersuchung gebrauchten Geräte und Verfahren, die Kriterien für eine Diagnose, die Pathologie und die Behandlung werden beschrieben und erörtert.     

Die ontogenetische Entwicklung des Dottersackstiels der Hausvögel und seine Rolle bei der Absorption des Dotters

The ontogenetic development of the stalk of the yolk sac in domestic birds, and its role in the absorption of the yolk Development and structural changes of the stalk of the yolk sac were studied experimentally using light and electronmicroscopy. The development begins on day 5 of incubation and ends on day 7–8. The muscular layer of the stalk is translucent in two or three places. The intestinal end of the stalk in the chicken and turkey forms a papilla which is provided with a sphincter and projects into the lumen of the intestine. Goose and duck have neither papilla nor sphincter. The diverticulum ductus vitellini is characteristically invaded by lymphocytes and in the goose and duck this lymphoid tissue reaches the organisation of fossulae. The stalk remains patent until postnatal day 3–7. Beginning on day 5 of incubation some yolk flows through the stalk into the intestine; from day 15 of incubation onward a little more, and during the closure of the umbilious on day 17, a large amount of yolk flows into the intestine, but this flow is reduced after hatching. The yolk is regurgitated into the glandular stomach and absorbed on its way there. Experimental evidence indicates that, from the day 11 of incubation onward, swallowed egg white reaches the yolk sac through the stalk.     

Mehrlingsgeburten bei Kühen mit Ovarialzysten nach intrazystoser Behandlung mit Gonadotropinen

Contents A report on the occurrence of multiple births after intracystory administration of shorion-gonadotropine in the ovary in cows.     

Die Synovialeinrichtungen des M. fibularis longus bei Katze, Hund, Schwein, Rind, Schaf und Ziege

The synovial structures of the M. fibularis longus were studied by dissection on 23 cat, 28 dog, 20 pig, 17 ox, 15 sheep and 17 goat limbs. Five injections with Technovit into the tarsometatarsal joint were made for each species. The dog had two tendon sheaths while all other species had only one lateral one. The mesotendon approached the tendon from the medial aspect and was fenestrated in the dog (here only in the proximal segment), pig, sheep, and goat, but in the cat and ox the fenestration was inconstant. In the area of the lateral malleolus the lateral tendon sheath narrowed (in the dog only in the proximal segment). The synovial structures on the plantar aspect in the cat, dog, pig, and sheep were formed by a recess of the tarsometatarsal joint; while in the ox and goat they formed a tendon sheath that took its origin from the same joint. The plantar recess surrounded the tendon three quarters of the way in the dog, and in cat, pig, and sheep only half way. Nomenclaturial consequences for the NAV are discussed.     

Die Bedeutung von Hoden- und Nebenhodenanom alien,insbesondere von Hodendrehungen bei Höhenfleckvieh- und Braunviehstieren für die Fruchtbarkeit1

Contents 1. 206 bulls, 13–24 months old, were tested from the A. I. centre (Spotted Mountain Cattle and German Brown Cattle). The measurements of the testes, the semen quality on the basis of 10 ejaculates of each bull, and the fertility quotient by means of the 60 to 90-Days-Non-Return results of a three months utilization (about 800 to 1000 first inseminations) were determined beside a general clinical investigation of the sexual organs. 2. From the tested bulls 12% showed a rotation of the testes about the longitudinal axis, 4,35% comparatively small testes, 2,9% an asymmetry of the testes, and 3,4% an underdevelopment of the cauda epididymidis. 3. A decrease of the semen quality and of the fertility quotient was determined in bulls with small testes, with asymmetrical testes and with an underdevelopment of the cauda epididymidis. The rotation of the testes had no influence on the fertility and quality of the sperm. 4. The results of the clinical tests, especially the size of the gonades must be given a greater consideration in the selection of stud bulls to ensure an optimal fertility.