Abstract The animal feed science is in constant search for new products that bring economic return, without harming the quality of the final product. This study aimed to evaluate the effect of increasing levels of substitution of corn by biscuit bran in lamb diet upon the fatty acid profile of its meat and its physicochemical and sensory characteristics. Twenty-four male lambs divided in four treatments were used. The treatments consisted in increasing levels (0, 15, 30, and 45%) of substitution of corn by biscuit bran in lamb diet. The significance of the treatments was determined by ANOVA and the adjusted means were compared by Tukey test at 5%. The effects were determined by linear and quadratic responses. The use of up to 45% biscuit bran sweet type did not modify the physical and sensory characteristics of meat, just as it did not affect nutrient and dry matter intakes and animal performance. A replacement of 45%, reduces the cholesterol (P = 0.03) and the total content of saturated fatty acid (P = 0.002), not modifying other physicochemical characteristics. The replacement of corn by biscuit bran sweet type in the feeding represents an alternative nutritional strategy for sheep meat production with desirable organoleptic and quality characteristics.

Abstract The aim of this study was to analyze the effects of genetic group and sex on residual feed intake, performance, testicular size, carcass and morphometric traits in Santa Ines purebred and Dorper ´ Santa Ines crossbred lambs. A total of 32 lambs, with initial body weight of 18±3.7 kg were used. Analysis of variance, considering the interaction between sex and genetic group of all the traits were performed. Crossbred females (-0.018±0.06) and purebred males (-0.018±0.05) were more efficient (p<0.001) in residual feed intake than crossbred males (0.018±0.04) or purebred females (0.018±0.04). The most efficient animal in residual feed intake consumed 37.9% less feed (1.179 kg/day) than the least efficient animal (1.899 kg/day). Crossbred, when compared to purebred, showed higher values for body weight, average daily gain, testicle size, carcass traits; had greater muscle accumulation, were more compact and with more aptitude to beef. Purebred were taller, but with lower body length and thoracic perimeter than crossbred. Males had greater muscle accumulation, were more compact and with more aptitude to meat. Crossing of native (Santa Ines) with exotic breed (Dorper) is an alternative to align efficiency in feed use, testicular size, compactness, aptitude for meat and ability for muscle accumulation.

Resumo: O objetivo deste estudo foi avaliar o perfil hematológico de cabras da raça Saanen em diferentes fases da gestação e no pós-parto. Para sua realização foram utilizadas 24 cabras gestantes e 10 não gestantes da raça Saanen, criadas em condições intensivas no município de Alegre, Espírito Santo. As amostras foram coletadas dos 60 aos 135 dias de gestação, com intervalos de 15 dias entre as coletas. Após a parição foram realizadas mais duas coletas, também com intervalos de 15 dias. As amostras de sangue coletadas foram refrigeradas até a chegada ao laboratório, onde foi realizado o eritrograma e a leucometria global em analisador automático e as contagens diferenciais em esfregaço sanguíneo. Após análise dos resultados pode-se observar que, nas cabras avaliadas, houve influência do período de gestação, do pós-parto e da ordem de parto sobre os valores do eritrograma. Todos parâmetros avaliados, exceto VGM, diminuiram com o avançar da gestação até os quinze dias pós-parto, sendo que as maiores alterações ocorreram no final da gestação. A leucometria global (LG) e específica também apresentaram diferenças significativas de acordo com o estado fisiológicos das fêmeas. Os valores médios de LG foram de 10.579 a 15.836 leucócitos/mm3. Fêmeas não gestantes apresentaram maiores valores de LG, diminuindo com a gestação até os 15 dias do pós-parto. Trinta dias pós-parto o valor de LG aumentou, assemelhando-se aos valores das cabras não gestantes. Os valores absolutos de neutrófilos segmentados seguiram a mesma tendência da LG. A quantidade de linfócitos apresentou diminuição a partir dos 120 dias de gestação, aumentando a partir dos trinta dias pós-parto. A quantidade de eosinófilos não sofreu alteração de acordo com o estado fisiológico e a quantidade de basófilos foi maior em fêmeas não gestantes. Para monócitos os resultados foram em geral superiores nas cabras não gestantes e com 120 a 135 dias de gestação. Com relação a ordem de parição observou-se que fêmeas com mais de quatro partos apresentaram menores valores de VG, não havendo diferenças nos outros parâmetros do eritrograma. A LG foi maior na cabras com quatro partos, principalmente devido ao aumento de neutrófilos, enquanto que a quantidade de linfócitos foi menor nestas cabras. Os resultados encontrados evidenciaram a influência da gestação, do pós-parto e da ordem de parto das fêmeas da raça Saanen estudadas sobre os parâmetros hematológicos e também a necessidade da realização de estudos para se determinar os valores de referência do hemograma dos caprinos para cada tipo de criação, estado fisiológico e raça.

Abstract: The aim of this study was to evaluate the hematological profile of Saanen goats at different stage of pregnancy and postpartum. For this study were uses 24 pregnant goats and 10 non-pregnant Saanen raised in intensive conditions in the Alegre city, Espirito Santo state. Samples were collected from 60 to 135 days of gestation, with intervals of 15 days between collections. After parturition were performed two more collections, also with intervals of 15 days. The blood samples were refrigerated until arrival at the laboratory. It was possible to perform the red blood cell (RBC) count, packed cell volume (PCV), hemoglobin, mean cell volume (MCV), mean corpuscular hemoglobin concentration (MCHC) and the white blood cell (WBC) count, on an automatic analyzer and the blood smears were stained whit panoptic stain for differential WBC counts. After analyzing results it can be seen that in goats assessed no influence of gestation, delivery and postpartum on the order of the values of the erythrocyte. All evaluated parameters except MCV, decreased with advancing gestation until fifteen days after birth, with the largest changes occurred in late pregnancy. The WBC and differential also showed significant differences according to the physiological stage of the females. The average values of WBC were 10579 e 15836 leukocytes/mm3. Non pregnant females showed higher WBC, with decreasing gestation until 15 days of postpartum. Thirty days postpartum increased the value of WBC, resembling the values of non-pregnant goats. The absolute values of segmented neutrophils followed the same trend of WBC. the number of lymphocytes showed decrease a 120 days of pregnancy, increasing from thirty days postpartum. The number of eosinophil was not changed according to the physiological state and the number of basophils was higher in non-pregnant females. For monocytes results were generally higher in non-pregnant goats and 120-135 days of gestation. With respect to parity other was observed that females with more than four birth a lower values of PVC, there were no differences in the other parameters of the erythrocyte. WBC was higher in goats with four deliveries, mainly due the increase of neutrophils, whereas the number of lymphocytes was lower in these goats. Already the number of lymphocytes was lower in goats with four birth. The results showed the influence of pregnancy, postpartum and the order of birth of the Saanen females studied on the hematological parameters and the need for studies to determine references values of blood cell counts for each type of goats breed.