RESUMO O objetivo deste estudo foi investigar as relações entre o peso corporal e as medidas corporais altura de garupa (ag), comprimento de garupa (cg), comprimento corporal (cc) e perímetro torácico (pt), 0,807; 0,440; 0,187 e 0,504 para vacas; 0,928; 0,735; 0,819 e 0,880 machos, e 0,942; 0,748; 0,902 0.807, 0.440, 0.187 and 0.504 for cows, 0.928, 0.735, 0.819 and 0.880 for males and 0.942, 0.748, 0.902 and 0.573 INTRODUÇÃOA determinação do peso corporal dos animais é importante para avaliar o crescimento e o estado nutricional, administrar adequadamente remédios e parasiticidas, estabelecer o valor de venda do animal de corte e ajustar o arraçoamento. Entretanto, a realidade econômica das fazendas leiteiras do Brasil muitas vezes não permite a aquisição de balanças para realizar a pesagem dos animais. Para minimizar tal deficiência, pode ser utilizada a alternativa de se predizer o peso por meio de algumas medidas corporais.

No abstract

Sheep production on pasture plays an important role in subtropical climates around the world, with great economic and environmental relevance to those regions. However, this production is much lower than its true potential in subtropical regions, largely due to lack of knowledge of how to feed grazing lambs, and mitigate gastrointestinal parasite infections. Due to weather instability and the high growth rate of tropical grasses, it is difficult to adjust the quality and quantity of feed consumed by lambs. In addition, due to warm, wet weather during spring, summer, and autumn, gastrointestinal parasite infection can be intense on subtropical pastures. Thus, the objective of this paper is to summarize 17 years of research in southern regions of Brazil testing alternative management for sheep farmers under these challenging conditions. Our review indicates that ewes play important roles raising their lambs. Besides protecting and providing milk, they leave a better pasture structure for lamb nutrition. The use of creep feeding and creep grazing are additional alternatives to improve lamb growth. However, feeding supplementation with concentrate can deteriorate pasture quality at the end of the summer–autumn season. Gastrointestinal parasitic infections can be reduced with improved lamb nutrition, although L3 larvae of Haemonchus contortus can be present at various pasture heights. This indicates that it is difficult to control L3 ingestion solely by manipulating grazing heights. We summarize important technologies for raising lambs on pasture-based systems to make the best of high herbage growth and minimize intense parasitic infections common in subtropical regions. We discuss research results in light of the latest studies from other ecoregions and climates, although there is a lack of similar research in subtropical regions of the world.

The objective of this experiment was to evaluate the efficacy of iodine tincture at 10% and sodium hypochlorite at 2.5% applied into the abscess of animals affected by Caseous Lymphadenitis (CL). Eighteen ewes were used, assorted into three groups: one treated with iodine tincture at 10% (IT), another one with sodium hypochlorite at 2.5% (SH) and the last group underwent the conventional treatment (CT). Conventional treatment was based on surgical drainage and chemical cauterization of the lesion with iodine tincture at 10%. Natural rupture of six abscesses from IT group was observed and in five of them the viability of Corynebacterium pseudotuberculosis was confirmed on the lesion place, after rupture of lymph node. As for the SH group, spontaneous rupture was observed in five out of six abscesses treated, and the microorganism was identified on the lesion of five animals, after rupture. In the sixth animal of this group, abscess involution was noticed. A severe swelling was identified in the region of lymph node treated, resulting in wide lesion in animals from groups IT and SH. No difference (p > 0,05) was found in blood parameters due to treatments. As for the serological monitoring of animals, comparative analysis between months within each group showed that months 1, 2, 3 and 4 were different (p < 0,05) from month 0, for groups IT and SH. For CT group, there was no difference (p > 0,05) between months 1 to 5 and 0. Then, the application of iodine tincture at 10% or sodium hypochlorite at 2.5% into the abscess of animals affected by CL, at stage in which lesions are detected through inspection, is not effective for its control.

Avaliou-se o desempenho produtivo e características quantitativas e qualitativas de carcaça e dos não-componentes de carcaça de cordeiros SPRD (Sem Padrão Racial Definido) cruzados com as raças Santa Inês (SI) e Somalis Brasileira (SB) terminados em confinamento. Foram utilizados 16 cordeiros desmamados, machos, não castrados, com peso inicial 19,7±2,0kg e três meses de idade. Adotou-se o delineamento em blocos ao acaso, com blocos representados pelo peso inicial de cada grupo genético (½ SPRD x ½ SI e ½ SPRD x ½ SB), com oito animais por grupo. Os ovinos ½ SPRD x ½ SI apresentaram maior ganho de peso diário e total, comprimento e perímetro de pernil, comprimento interno da carcaça, peso e rendimento do corte serrote, peso e rendimento dos não-componentes da carcaça (pulmão e traqueia, fígado, rins, cabeça e patas). Os cordeiros ½ SPRD x ½ SB apresentaram maiores valores para escore de condição corporal inicial e final, espessura de gordura subcutânea, grau de acabamento, pH inicial e final. Assim, cordeiros mestiços ½ SPRD x ½ SI constituem uma alternativa promissora para o estabelecimento de sistemas produtivos mais eficientes, considerando a superioridade em ganho de peso e as características da carcaça relacionadas às medidas morfométricas, ao corte cárneo serrote e aos não-componentes da carcaça em relação aos animais ½ SPRD x ½ SB. No entanto, os cordeiros os cordeiros ½ SPRD x ½ SB apresentam superioridade quanto aos aspectos conservação da carcaça e nos casos de mercados com preferência por carcaça com maior teor de gordura.