Spei Domus

1-18

Authors: Cristiane Aparecida Moreira Mesquita

Geo-helmintiasis are recognized due to their high morbidity and because they cause thousands of deaths annually, mainly of children in underdeveloped countries. There is a global proposal with a goal to be achieved, knowledge of the prevalence of geo-helminthiasis is essential. Even so, it is possible to assess the regions should receive greater attention in the search for treatment and control. The objective of this study is to evaluate the prevalence of infections due to geo helminthiasis in Brazil based on the analysis of the published literature. Methodology: For this, a systematic review of articles in PubMed, Scopus and Science Direct databases was made considering studies in which parasitological copro examinations were performed between 1/1/2010 and 8/17/2020. Studies representing the following data were included: number of participants, age group, parasi-tological method, geographic location. A total of 25 studies were identified with reports of prevalence in rural communities, indigenous school children, urban and peri urban areas. The studies were carried out in twelve Brazilian states in the South, South West and North West region. Results: 56% of the studies included individuals aged 0 to 93 years. The techniques base on spontaneous sedimentation were the most used. Ascaris lumbricoides was another species found (0,15 to 48,8%), followed by Trichuris trichiura (0,16 to 61,5%) and hookworns (0,08 to 22,8%). The state of Rio Grande do sul (RS), Minas Gerais (MG), Paraná (PR), Alagoas (AL) and Bahia (BA) had higher reports (>20%) of Ascaris lumbricoides and it also represented reports for T. trichiura (PR, AL and BA) and hookworms (MG, AL and BA). Conclusion: In Brazil, studies on the prevalence of soil transmitted helminth infections are scarce, mainly in regions of extreme poverty, the published works do not refer to the prevalence of municipalities and of certain communities, which doesn’t not always represent the reality of the local. More studies on the prevalence of infections due to soil transmitted helminth infections are necessary to know areas of greater risk where the measures for treatment and control should be more effective.

1-13

Authors: Nidia Fernanda Gamboa-González, Ariel Leonardo Cotamo-López, Nixon Ali Suárez-Gómez

The genetic improvement programs in broilers are updated based on parameters of interest such as zootech-nical performance, yield and quality of the carcass, as well as economic viability. Therefore, the development of new genetic lines that respond positively to the productive challenges of the industry is one of the biggest challenges found today. The objective of this work was to evaluate the zootechnical performance and degree of feathering of the birds during their productive cycle. There were used 2400 male and female broilers, distributed in randomized blocks in a 2 x 2 factorial system (Sex x Line), being two sexes and two genetic lines (line A x Line B) with 12 repetitions per treatment. The birds were distributed in 48 corrals of 2.25 x 1.50 with an initial occupation of 50 birds per corral (14.8 birds/m2), the feeding and lighting program was established by the company. Zootechnical performance parameters were evaluated weekly and the feathering degree on day 41. The data were analyzed by the statistical test of T student and U Mann Whitney’s in data that did not have normal distribution, using the IMB program SPSS 25. No significant differences were observed between the genetic lines evaluated for the variables of body weight, feed consumption, feed conversion, weight gain and efficiency at day 41 of age. With respect to the degree of feathering, the females of the B line presented a greater degree of feathering than the other treatments.

1-22

Authors: Alcides Zabala Mendoza, Héctor Jairo Correa Cardona, Ángel Giraldo Mejía

Introduction: Carnitine is key in the proper metabolism of lipids, so its deficiency can trigger metabolic and productive problems during peripartum, for this reason, the objective of this study is evaluated the parenteral application of various doses of L-carnitine to cows during the peripartum; Methodology: Each treatment consisted of six Holstein cows between second and sixth birth to Holstein cows of high production, grazing kikuyu grass (Cenchrus clandestinus [Hochst. ex Chiov.] Morrone) and supplemen-ted with a concentrate food 0, 5, 10 and 15 grams of L-carnitine in solution were applied via intramuscular every 5 days from day 270 of gestation to day 15 postpartum on dry matter intake (DMI), energy balance (EB), milk was estimated using the indicator technique. MY, MF and MP were measured on days 5, 10, 15 and 20 of lactation. On day 270 of gestation and on days 10 and 20 postpartum the EB of each cow was calculated. Results: The results of these measurements are analyzed in a time-divided plot design. Conclusions:The treatments do not affect DMI, MY, MP, MF and EB (p> 0.05), under the experimental conditions described in this work, parenteral L-carnitine has no effect on milk production, composition and EB