The aim of the present research is to investigate breeders’ management strategies and their effects on reproductive performances in heritage breeds. A total 468 litters were analysed: Belgian Hare (N = 151), Burgundy Fawn 105), Californian 212). Litter size (born alive), percentage weaned kits selected analysed using a model that included breed, year birth, litter’s origin (with three levels: b...

Both cat breeders and the lay public have interests in the origins of their pets, not only in the genetic identity of the purebred individuals, but also in the historical origins of common household cats. The cat fancy is a relatively new institution with over 85% of its 40-50 breeds arising only in the past 75 years, primarily through selection on single-gene aesthetic traits. The short, yet i...

The Garole is the only known prolific sheep breed in India and is a native of Sunderban, the swampy delta region of West Bengal [1]. Malpura is a popular mutton-type breed of semi-arid tropical region of India. These sheep are known for their hardiness and adaptability to the local environment but prolificacy is low with ewes usually producing single lambs. Increasing prolificacy of the Malpura...

This study aimed at characterising 606 crossbred pigs of three commercially available breed types in terms of their carcass and meat quality. Breed G and H were German Large White (LW)×German Landrace (LR) sows sired with Pietrain (PI) boars, i.e. PI×(LW×LR). Breed S was 25% Duroc (DU), i.e. PI×(DU×LR). Most of the parameters were affected by breed and/or date of slaughter. The meat of crossbre...

The objective of this work was to evaluate the genetic diversity of Brazilian Pantaneiro horse by microsatellite markers, investigate the effect of genetic bottlenecks and estimate genetic differentiation among four horse breeds. Genetic variation was estimated through allele frequencies and mean breed heterozygosity. Nei ́s genetic distances among the breeds Pantaneiro, Thoroughbred, Arabian, S...

Crossbreeding is a common strategy used in tropical and subtropical regions to enhance beef production, and having accurate knowledge of breed composition is essential for the success of a crossbreeding program. Although pedigree records have been traditionally used to obtain the breed composition of crossbred cattle, the accuracy of pedigree-based breed composition can be reduced by inaccurate...

In considering Hannah Arendt’s philosophical debt to Nietzsche, commentators have often drawn attention to the figure of the promise and to its central significance in the work of both thinkers. “The real problem regarding man,” as Nietzsche famously wrote in the programmatic opening remarks to the second essay from On the Genealogy of Morals, is how “to breed an animal with the right to make p...

Quality, quantity, and cost of feed resources available for beef production vary from one region of the country to another and within regions, depending upon climatic factors and natural resources available in specific production situations. Diversity among breeds can be exploited by crossbreeding to optimize performance levels and to match genetic resources with the climatic environment, feed ...

CA) reveal that DNA is synthesized when it is least likely to be hit with oxidative damage. Damaging oxidizing agents are produced by respiration. In yeast, respiration is periodic—it alternates in ‫ف‬ 40-min cycles with a stage of non-respiration called the reductive phase. This oscillation was detected decades ago, but it was never thought to be connected to cell cycle progression. Now, Kleve...

This survey was carried out to determine the infection rate of Coenurus cerebralis in Urmia abattoir, West Azerbaijan, Iran. A total of 402 sheep heads were examined and the number of C. cerebralis cysts per each head was recorded. Thirty three sheep heads were examined each month during 12 months from 2006 to 2007. Of 402 heads, a number of 75 heads (18.65%) were infected with C. cerebralis. T...