Records of five settled and five nomadic sheep enterprises in Karya-2, a sub-project of the “National Ovine Breeding by Public” project carried out by the General Directorate of Agricultural Research and Policies of Denizli Province, Turkey, were examined in this…
Methane (CH4) and nitrous oxide (N2O) are two important greenhouse gases (GHGs) that are emitted into the atmosphere by livestock during the process of enteric fermentation and manure management. Developing countries produce a large quantity of those emissions, caused mainly…
Information on the production, processing, and marketing of lamb in New Zealand is presented. Consideration is given to new practices such as genetics and animal breeding, nutrition, and flock management that have been introduced in sheep farming to improve production,…
In this article progress attributable to genetic selection in the poultry industry is discussed in three sections: genetic progress in broilers and broiler breeders, in laying hens, and in disease resistance. Selection methods are evaluated and future objectives are suggested.…
Selection for production and reproduction in South African Merino sheep is always combined with selection based on visual appraisal and will, in all probability, remain so for many years to come. Heritabilities for acceptability were estimated using a threshold model…
The object of this study was to estimate heritabilities and genetic correlations for reproductive traits in a composite multibreed beef cattle herd using multitrait analysis. A REML procedure fitting a multitrait animal model was used to analyse data. Heritabilities and…
The first part of the investigation included a study of the frequency of blood factors in different goat breeds from Europe and South Africa using sheep blood typing reagents detecting related red cell antigens in the goat. It appeared that…
The sale prices of 1 609 Dorper rams sold between 1990 and 1999 were compared with their measured performances. An analysis of variance was carried out in order to determine which variables influenced sale price. The most importance factors were…
This study was conducted to evaluate direct and correlated selection responses to selection for total weight of lamb weaned per ewe joined (TWW), number of lambs born (NLB), number of lambs weaned (NLW) and weaning weight (WW). Data from the…
