First-parity Holstein (H), Normande-Holstein (NxH) crossbred, Montbeliarde-Holstein (MxH) crossbred and Scandinavian-Holstein (SxH) crossbred cows calving from June 2001 to December 2003 were compared for dystocia and stillbirths from seven California herds. Dystocia scores ranging from 1 (no assistance) to 5 (hard pull) and stillbirths (1 for alive and 0 for dead) were recorded for 1695 Holste...

Purebred and two-breed cross (F1) boars were mated to F1 females to produce all possible three- and four-breed cross pigs involving the Duroc, Yorkshire, Landrace and Spotted breeds. Individual postweaning average daily gain (ADG), age at 100 kg (AGE) and probed backfat thickness at 100 kg (BF) data were collected on 3,456 pigs. A total of 213 pens with an average of 15.58 pigs per pen was eval...

Vitamin A has several important functions such as preventing childhood blindness and strengthening the immune system against common diseases in children. The purpose of present work was to assess nutritional intake vitamin oasis school-age cross-sectional survey carried out among children enrolled public primary education establishments. 4244 school-aged were randomly selected take part study. ...

Key Points  There are few “true” breed sensitivities to anesthetics  Breed idiosyncrasies to various anesthetic, sedative, and analgesic drugs should be considered when formulating an anesthetic plan  Many myths in small animal anesthesia derive from mis-interpretation of data or singular experiences that evolve into “scientific fact”  This lecture will attempt to dispel some common myths a...

Breed predispositions for some types of congenital heart disease were recognized 30 years ago and led to breeding experiments that confirmed the genetic transmission of specific congenital heart defects in most instances. As a result, certain breeds were associated with certain diseases, and this became a legitimate consideration in the differential diagnosis of some abnormalities in the absenc...

ICAR Technical Series No 3 The development of the Dorper sheep and the Improved Boer Goat are undoubtedly two of the most successful long-term livestock programmes in South Africa. The Dorper is a composite mutton sheep breed developed through crossing an indigenous breed with a British mutton breed and the Improved Boer Goat was developed using a breeding strategy based largely on selection fo...

A comparative study was made of the character and severity of the infection produced by Tr. pallidum in groups of standard bred Havana, Dutch, English, Himalayan, and Rex rabbits. All known variables that might influence the course of the disease were common to the different breed groups. On the basis of certain clinical data selected as criteria for the determination of variations in the respo...