Jose Antonio Rivera Ulloa and Lucio F Araujo
University of Sao Paulo, Brazil
Scientific Tracks Abstracts: J Vet Sci Technol
The productive effi ciency in sows depends directly on the success of its reproductive management, aiming at producing more (quantity and individual weight of piglets) per female per year. Th e culling rate recorded as caused by claudication and hull injury on commercial farms is estimated at 15% and reproductive problems such as abortion, low numbers of newborn piglets, anestrus, recurrence of estrus, etc. are the main cause for culling, leading to a decrease the longevity of the farm, being considered as an economic and animal welfare problem. In 2007 a research showed that abscesses in the hind hooves are fi ve times more correlated with acyclic ovaries than the body condition. We must consider than culling caused by underperforming or reproductive problems, in most cases, are related to hull injuries, even if subclinical. Th us, it is estimated that locomotor problems are related to at least 47% of the cullings. Th e objective of this study was to know the prevalence of hull injuries in sows in farms in Lima Peru. For this, a cross-sectional study was carried out; where 400 females from 1 to 13 births of the same genetics, raised in farms with similar conditions of climate, fl oor and management. Eight types of lesions were evaluated in the posterior hulls and each classifi ed on a discrete scale from 0 to 3, where 0 was the absence and 3 were severe lesions. Th e results showed that 98.5% of the evaluated animals presented at least one lesion in the hull, 29.5% had mild lesions, 45.5% moderate lesions and 23.5% severe lesions. 100% of primiparas presented some type of lesion and the most frequent lesion was overgrowth and erosion of the sole. Even these data belong to a specifi c place, the conditions and the genetics of the animals are oft en found in several countries of the world. In 2013, data were presented showing similar ratios in Brazil.
Jose Antonio Rivera Ulloa is a Peruvian Veterinarian has ï¬ eld, commercial and academic experience in poultry farming and pig production and nutrition and passion in improving welfare and productivity. He has obtained his Master of Science degree, studied nutritional alternatives to reduce the negative impact of weaning on immunity, productivity and intestinal morphology in piglets. During his Doctoral degree, he has studied alternatives to the use of antibiotics in meat broilers and nutritional alternatives to reduce hull injuries in sows, decreasing its effects on productivity, welfare and consequently on the economy of the activity.
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