Lada Radin

Metabolic and oxidative status of Saanen goats of different parity during the peripartum period.

The aim of this study was to research changes in metabolic and antioxidative status of Saanen goats of different parity occurring during the peripartum period. Blood samples were taken on 10-7 and 3-1 d prepartally and 1-3, 14 and 28 d postpartally from goats allocated in three groups according to their parity: primiparous (PRIM), goats that kidded the 2nd or 3rd time (MID), and goats that kidded 4 or more times (MULTI)). Metabolic profile parameters (non-esterified fatty acids (NEFA), β-hydroxybutyrate (BHB), glucose, triglycerides, albumin and urea) and indicators of oxidative stress ((superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and malondialdehyde (MDA)) were determined. Intense metabolic changes associated with late pregnancy and onset of lactation were pronounced the most in MULTI goats that also had the biggest litter per goat. Significant differences were found in metabolic parameters NEFA, BHB, glucose, triglycerides within groups during peripartum period, as well as between them (the effect of parity). MDA concentrations were indicative of increased lipid peroxidation around parturition, especially pronounced in MULTI group 1-3 d prepartally, when the highest GSH-Px/SOD ratio was also found. Postpartally, antioxidant enzymes ratio in MID and MULTI group decreased while MDA concentrations remained high, suggesting antioxidant system inefficiency. Significant time × group interaction was observed for most of the parameters. The obtained results show that the goats of higher parity display higher levels of metabolism intensity and consequently, varying levels of oxidative stress during the peripartum period. Further studies should determine applicability of NEFA and BHB in periparturient metabolic profiling in dairy goats as well as establish normal ranges and cut-off levels for these biomarkers.

Reliability of lactate Scout portable analyzer in agility dogs during multiple measurements

Abstract The aim of this study was to evaluate the reliability of multiple measurements with Lactate Scout portable analyzer in dogs during treadmill exercise. Ten Border collies were involved in the study and blood samples were taken before, three times during and twice after the treadmill exercise. Lactate concentration was measured in duplicate, by Scout portable analyzer and the reference biochemical analyzer in the laboratory, and the obtained values were compared. There was a high and positive correlation between these two methods (r=0.96, p=0.003). The Lactate Scout analyzer reveals a high degree of agreement with the laboratory method and therefore can be valid for use in research of veterinary sports medicine and emergency veterinary medicine where multiple measurements of lactate concentrations are often needed.

Current aspects and recommendations in health management of organic sheep and goat farming in karst areas of Croatia

Karsts areas are environments that provide almost ideal natural conditions for the development of organic sheep and goat farming. There is a growing interest in organic production methods in Croatia, mainly because these systems are expected to offer more profitable and sustainable production systems, based on low input. Existing data on animal health in organic livestock production systems are reviewed in the light of the demands and challenges of the implementation of EU regulations in Croatian organic sheep and goat production. The main conclusions and recommendations of organic sheep and goat production are summarized and the future challenges to organic livestock production in terms of welfare and health management are discussed. The authors concluded that a lot of effort is needed in order to find solutions that will meet organic standards requirements and guarantee high levels of health and welfare for animals. While organic standards offer a good framework for rural development, there is an obvious need for solving apparent conflicts between organic farming objectives and environment or public health while having in mind farmers’ income and animal health monitoring. The key challenges for the future of organic livestock production in Croatia are related to the state-veterinarian-owner communication. Field experience shows that organic livestock production is no guarantee of good animal health and welfare. The development of quality frameworks for continuous animal health assessment and herd management standards are crucial. Epidemiological studies are needed to evaluate health risk factors for the animals in organic livestock production.