ABSTRACT
O objetivo do presente trabalho foi avaliar as proporções de cortes comerciais, tecidos do lombo e composição da carne de cabritos de cinco grupos raciais: Alpino, ½ Boer + ½ Alpino (½ BA), ½ Anglo Nubiano + ½ Alpino (½ ANA), ¾ Boer + » Alpino (¾ BA), » Boer + » Alpino + ½ Anglo Nubiano (Tricross), submetidos a três pesos de abate (25, 30 e 35kg) em sistema de confinamento, com utilização de dieta completa. O cruzamento das raças Boer e Anglo Nubiana com fêmeas Alpinas apenas melhorou, nos cabritos, os rendimentos de cortes considerados de terceira categoria, como pescoço e costela. Pesos corporais de abate entre 30 e 35kg devem ser preferidos por aumentarem a proporção de lombo, reduzirem a proporção de pescoço nos Alpinos e aumentarem a de perna em Alpinos e ¾ Boer, além de proporcionarem quantidades adequadas de músculo e gordura intermuscular.
The purpose of this study was to evaluate the commercial cuts, loin tissues and composition proportions in meant from five racial groups: Alpine, ½ Boer + ½ Alpine (½ BA), ½ Anglo Nubian + ½ Alpine (½ ANA), ¾ Boer + » Alpine (¾ BA), » Boer + » Alpine + ½ Anglo Nubian (Tricross), submitted to three slaughter weights (25, 30 and 35kg) in feedlot, using a complete diet. The crossing of Boer and Anglo Nubian with Alpine females only improved, in kids, the yield of cuts considered third category such as neck and rib. Slaughter body weights between 30 and 35kg should be preferred due to increase in the proportion of the loin, reduction in the proportion of the neck in Alpine and increase in the leg in Alpine and ¾ Boer, beyond the appropriate amounts of intermuscular fat and muscle.
Subject(s)
Animals , Milk , Abattoirs/statistics & numerical data , Courtship , RuminantsABSTRACT
Children and adolescents have been considered more susceptible to the effects of air pollution than adults. In order to investigate the responses of children of different ages to air pollution exposure, daily records of hospital admissions for children in five age groups (equal or less than 2 years of age, 3-5, 6-13, 14-19, and all ages together, i.e., from 0-19 years of age) were obtained from January 1993 to November 1997 in São Paulo, Brazil, and were compared to daily records of PM10, O3, SO2, CO and NO2 concentrations in ambient air. For each age group a generalized additive Poisson regression was fitted controlling for smooth functions of time, temperature, humidity, and days of the week, with an additional indicator for holidays. Polynomial distributed lag models were used to estimate the 7-day cumulative effect of each pollutant. Children 2 years or less were the most susceptible to the effects of all five pollutants with an increase of 9.4% (95% CI: 7.9,10.9) in respiratory admissions associated with each interquartile range increase in PM10. The oldest group was the second most susceptible to air pollutants, with each interquartile range increase in PM10 associated with a 5.1% (95% CI: 0.3,9.8) increase in respiratory admissions. An interquartile range increase in CO was associated with an 11.3% (95% CI: 5.9,16.8) increase in respiratory hospitalizations. When a multipollutant model was used, the effect of PM10 on respiratory admissions for all ages together was unchanged, while the SO2 and the other pollutants effect was substantially reduced. This study showed that daily respiratory hospital admissions for children and adolescents in São Paulo increased with air pollution, and that the largest effects were found for the youngest (2 years or less) and oldest (14-19 years) age groups.
