Um polissacarídeo extracelular foi produzido por via microbiológica, através da bactéria ZSP isolada no Laboratório de Microbiologia Industrial da Estação Experimental de Cana-de-Açúcar do Carpina/UFRPE, apresentando excepcional capacidade de processo. Os principais monossacarídeos presentes na fração solúvel foram glicose (87,6%), xilose (8,6%), manose (0,8%), ribose (1,7%), galactose (0,1%), arabinose (0,4%) e o ácido glucurônico (0,8%). Devido ao alto índice de traumatismos que acomete os animais domésticos e a busca por alternativas simples, econômicas e capazes de proporcionar condições ideais para cicatrização, foram realizados os testes com o biopolímero produzido a partir da cana-de-açúcar em animais portadores de feridas cutâneas, a fim de avaliar a reepitelização. Observou-se o aumento do tecido de granulação, controle da infecção e diminuição do tempo de cicatrização, permitindo concluir que o biopolímero contribui para o processo cicatricial, podendo ser utilizado em feridas cutâneas.

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Ten pluriparous mares were used as donors to supply embryos which were transferred into 103 recipients, 31 of which were nulliparous, 34 were pluriparous and lactating, and 38 were pluriparous and non-lactating. The embryos were recovered eight days after ovulation and pregnancy was confirmed by ultrasound six days after the transfer; the length of the embryos was measured ultrasonographically on days 12, 14, 16, 18, 20, 25 and 30 after the embryo transfer. One hundred and fifteen of 200 flushes provided embryos, 12 being degenerate and 103 being viable embryos. From the 103 embryo transfers carried out, 51 pregnancies were confirmed by ultrasound within 30 days; 16 of the 31 nulliparous recipients became pregnant, 16 of the 34 pluriparous lactating recipients and 19 of the 38 pluriparous non-lactating recipients. There were no significant differences between the groups of mares in the mean (sd) rate of growth of their embryos between 12 and 30 days of gestation.

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The reproductive performance of postpartum Santa Inês (SI) and Morada Nova (MN) ewes treated with insulin or progesterone hormones in association with ram effect was evaluated. Ewes from SI (n = 69) and MN (n = 69) breeds were randomly allocated to three groups of each breed (T1-ram effect only; T2-ram effect + insulin; T3-ram effect + progesterone). Progesterone concentrations (ηg/ml; mean ± SD) before and after introduction of rams (n = 6) were 0.51 ± 0.22 and 3.78 ± 0.68 (T1), 0.65 ± 0.21 and 3.77 ± 0.78 (T2) and 0.52 ± 0.21 and 3.84 ± 0.84 (T3) in SI ewes and 0.74 ± 0.19 and 3.71 ± 0.56 (T1), 0.70 ± 0.21 and 3.79 ± 0.75 (T2) and 0.81 ± 0.14 and 3.87 ± 0.80 (T3) in MN ewes, respectively. Thus, lower progesterone concentrations were found before the introduction of rams (p < .05). After the introduction of rams, preovulatory peaks of LH (ηg/ml) occurred at 28 (T1), 44 (T2) and 48 (T3) hr in SI ewes and at 64 (T1), 40 (T2) and 44 (T3) hr in MN ewes. The mean number of ovulations was similar between groups (p > .05), was 1.3 ± 0.51 (T1), 1.5 ± 0.54 (T2) and 1.6 ± 0.51 (T3) in SI ewes and 1.3 ± 0.51 (T1), 1.6 ± 0.51 (T2) and 1.6 ± 0.51 (T3) in MN ewes. In conclusion, the ram effect alone is effective at inducing and synchronizing oestrus in sheep under postpartum anoestrus, irrespective of hormone treatments.