In leghorn chickens (Gallus gallus domesticus) of standard breed (large) and bantam (small) varieties, artificial selection has led to females being permanently gravid and sexual selection has led to male-biased size dimorphism. Using respirometry, videography and morphological measurements, sex and variety differences in metabolic cost of locomotion, gait utilisation and maximum sustainable sp...

Abstract The aim of our study was to evaluate the technological (pH, water-holding capacity, cooking loss, oxidation-reduction potential, water activity, color parameters, and microbiological purity) nutritional suitability meat selected lamb breeds by analyzing indicators (fatty acid profile, fat indices, lipid oxidation, basic composition) that determine quality lipids present in meat. A comp...

In 2016 the Chinese infant formula company Feihe International signed a deal with Canadian Dairy Commission (CDC) to process cows’ and goats’ milk for export China. Our purpose in this paper is understand how – new factory located Kingston, Canada underpinned by series of multispecies entanglements across cow, human goat mothers China Canada. To do so, we analyse official correspondence between...

The objectives of this study were to develop breed-specific single nucleotide polymorphisms (SNPs) in five pig breeds sequenced with Illumina's Genome Analyzer and to investigate their usefulness for breed assignment purposes. DNA pools were prepared for Duroc, Landrace, Large White, Pietrain and Wild Boar. The total number of animals used for sequencing was 153. SNP discovery was performed by ...

Many birds do not breed until they are 2 or more years old. Such delayed breeding is generally found among large, long-lived, non-passerine species. Lack (1954) suggested that delayed breeding has probably evolved in species in which reproduction at an earlier age would not be likely to succeed or might be harmful to the parents. Ashmole (1963) and Amadon (1964) suggested that young birds might...

objective(s): predegeneration is a standard technique to obtain mitotically activated and enriched cultures of schwann cells (scs). this study, for the first time, evaluated the impact of various duration of predegeneration on cell yield and enrichment of scs from dog peripheral nerve. materials and methods: dog sural nerves were subjected to 5, 10, 15 day-long in vitro predegeneration. the tot...

Ethiopia has the largest livestock population in Africa but the contribution of this resource to the economy is limited and yet the country is in poverty. Dairy development has a big role for the contribution of income generation and employment. Demand for dairy products seems to exceed supply in the country in general and the study area in particular. Hence, the situation of dairy production a...