Alcarreña is an endangered Spanish sheep breed (8 009 breeding animals) characterized by its adaptation to a particularly harsh environment and by having a sustainable pasture-based, small-scale, production model. The first objective of this study was to identify the technical-economic aspects of the Alcarreña farms, based on information obtained from surveys. The second objective was to quantify the influence of slaughter weight (12, 19 and 23 kg) on the sensory characteristics of the lamb meat. The mean age of the Alcarreña sheep farmers was lower than the average age of Spanish sheep farmers; however, generational renewal is not assured because most of the farmers’ children were still in school. Mean flock size was higher than the average Spanish sheep flock. Alcarreña sheep were reared under an extensive management system, grazed year-round and had a reproductive schedule of three lambings within 2 years. The carcass and meat qualities of the 12 and 19 kg lambs did not differ significantly, although the lightest lambs had the softest meat and the clearest subcutaneous fat. The most important differences between the lighter lambs and the 23-kg lambs were in meat and fat colour and lipid composition. Among the sensorial characteristics, the 19-kg lambs had the lowest meat fibrosity, and meat colour and slaughter weight were negatively correlated.

The guinea pig is a rodent mammal native to Colombia, Ecuador, Peru and Bolivia in the Andes, where it has always had a close relationship with the pre-Inca people, either as a food source, high in protein and low in fat or as an animal associated with traditions maintained to the present day. Since ancient times, guinea pig breeding has traditionally been carried out in small spaces inside the kitchens of rural farming families, near the stove. To meet rural households' need for income, a commercial production system has been established and has introduced improved strains/breeds which have spread throughout the Andean region, almost completely absorbing the native guinea pig. On the other hand, since the sixteenth century the guinea pig has gained in popularity around the world as a pet, for exhibition purposes, or as a laboratory animal. In this paper, a literature review has been undertaken to compile and disclose the main issues concerning the guinea pig and the Andean population, with the aim of creating awareness of the importance of conserving local genetic resources and providing a starting point for future research.

The Vechur Cattle of South Kerala (India), once popular and known for its comparatively high milk yield compared with the other local varieties, had become almost extinct by the 1980s. This was due to the massive cross-breeding with exotic bulls implemented by the Government in order to enhance milk production. But the launching of a search for the last available specimens of the variety and the initiation of a conservation effort in 1989 in the Kerala Agricultural University by the author and a team of her students resulted in saving this valuable breed. With 10 years time the distribution of the progeny of the foundation stock to the farmers could be started. The conservation work was taken forward with strong determination in spite of unexpected events. The Vechur cattle was subsequently recognized as a cattle breed of India. The cow yields 2.5 litres of milk daily during the lactation period of about 8 months. It has emerged as a sustainable cow to farmers. The adaptability of the animal to the hot humid tropical countries has special significance as an insurance for the future. It also has the potential to be a small good beef breed. The value of the milk including the small fat globule size, presence of A2 beta-lactalbumin protein and higher arginine content has been proven scientifically. The total population size in Kerala is estimated to be 2000 animals.