Produção Animal
URI permanente para esta coleçãohttps://repositorioacademico.universidadebrasil.edu.br/handle/123456789/34
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Resultados da Pesquisa
Item Fontes e níveis de vitaminas e minerais na deposição de gordura intramuscular e qualidade da carne em novilhas Angus x Nelore(Universidade Brasil, 2024) Ferraz, Lenita Pompeo; Dian, Paulo Henrique MouraThe experiment aimed to evaluate the effect of premixes containing different sources and levels of trace elements and vitamins on intramuscular fat deposition and meat quality in crossbred Angus x Nelore heifers. Forty-two females weighing approximately 358 kg and aged 13 to 26 months were divided into three experimental groups of 14 animals each: Treatment A (Control) – standard level of vitamins A, D and E; without vitamins in the B and C complex; selenium and zinc in inorganic forms; Treatment B - without vitamin A, vitamin D at a reduced level and vitamin E at a higher level; without vitamins in the B and C complex; zinc (same level as treatment A) and selenium at a reduced level, in organic forms; and Treatment C - without vitamin A, vitamin D at a reduced level and vitamin E at a higher level, with vitamins in the B and C complex; selenium and zinc (level of treatment B) in organic forms. The animals were weighed biweekly and consumption was monitored daily by pen. Ultrasound measurements were performed at the beginning and end of the experiment. Meat quality analyses were performed after slaughter. Overall, weight gain results were similar among the 3 experimental groups. Mean delta marbling was numerically higher for treatment C compared to the others. The highest b* value was observed for treatment C, not significantly different from A, but tending to be different from B. Treatment C had the highest number of carcasses classified as having the highest grades (Treatment A: 38%, Treatment B: 31%, Treatment C: 58%). For animals with low initial levels of marbling measured by ultrasound (<3.35), Treatment C tended to provide a higher mean USDA score at the end compared to Treatment A (+1.4 points), and Treatment C tended to have higher total fat content in the rib eye. The cost of the formula was the highest for treatment C and the lowest for treatment A. However, considering a special carcass grading program for the Angus breed (Brazilian Gold Program) and the extra payment of this program (10% bonus), Treatment C provided the highest number of carcasses that could be graded and receive extra revenue.Item Aditivo à base de resíduo de mandioca e inoculante bacteriano para silagens de capim elefante BRS Capiaçu(Universidade Brasil, 2021) Santos, Anderson Braun dos; Brennecke, KätheryDuring dry periods, there is a drop in the availability and quality of pastures, the main source of food for ruminants in the country, which impairs animal productivity. The use of alternative additives such as agro-industrial residues can be used as additives in silage production. Therefore, the present study aimed to evaluate the fermentative profile, gas and effluent losses, chemical composition and in situ ruminal degradability of BRS Capiaçu elephant grass silage with an additive formulated based on cassava residue, bacterial inoculant Lactobacillus buchneri and urea. The experiment was conducted at the Federal Institute of Rondônia (IFRO), Colorado do Oeste Campus. For the preparation of the formulated additive, cassava residue was used, with moisture reduced to approximately 89% of dry matter. The dry material was mixed with urea and Lactobacillus buchneri. The proportion of 1% of livestock urea on the total weight of cassava meal was used. The inoculant used was Lalsil AS® with Lactobacillus buchneri composition at a concentration of 1.0 x 1011 CFU/g. The dose applied in treatments with the inoculant was equivalent to 1g of commercial additive per ton of natural forage matter. The inoculant and urea were mixed with 100g of cassava meal and this first portion was mixed with the total amount of additive used. The treatments consisted of the levels of inclusion of the additive in the silage, as follows: 0%, 5%, 10%, 15%, 20% and 25%. Thus, it was observed that the silages that did not receive the additive had less than ideal dry matter content. Inclusion levels of 5% and 10% provided adequate DM levels for BRS Capiaçu silage. For the variable gas loss (PG), pH and ether extract (EE), there were no significant differences between the inclusion levels. The NDF values decreased as the inclusion of the formulated additive was increased, results that ranged from 71% to 33.21%. The NDFi values obtained after 288 hours of ruminal incubation showed significant differences between treatments. A significant difference was observed for the mineral matter (MM) variable, the MM content of the formulated additive is lower than that of Capiaçu. The inclusion of the formulated additive in the BRS Capiaçu elephant grass silage linearly reduced the crude protein (CP) content in the additive silages. Thus, it can be concluded that the use of the additive in BRS Capiaçu elephant grass silage changed the parameters evaluated when compared to silage without the use of these additives, benefiting mainly in the reduction of effluents produced.Item Percepção de tutores quanto a contribuição de alimentação e cuidados do manejo preventivo na saúde oral(Universidade Brasil, 2021) Mendonça, Evelyn Benayon Cunha; Bertipaglia, Liandra Maria Abaker; Putarov, Thaila CristinaWith modernity, guardians began to spend more on their pets, and the search for products that contribute to health and well-being has increased in the last two years. Among the most sought after claims by consumers are "Healthy teeth", "Care with daily oral hygiene", "Reduction of bad breath" and all those involving oral health care. Periodontal disease (PD) affects a large part of the population of dogs and cats from middle age onwards, but many guardians are unaware of oral hygiene care and the consequences of PD. To contribute to the well-being of dogs and cats, this work aimed to: (a) assess the knowledge of dog and cat tutors in Manaus, in the state of Amazonas, and their behavior regarding their oral hygiene and hygiene practices. your pets; (b) develop an e-book and an informative folder to guide them in caring for the oral health of dogs and cats; and (c) develop technical material for veterinarians regarding PD care and procedures. As a first step, an electronic questionnaire was developed containing questions about the oral health of the owner and his animals. The questionnaire was made available via the Google Forms platform and the link was sent to people in the state of Amazonas. A total of 255 people answered the questionnaire, there was a significant participation of people with higher education (60%) and females (74.9%). Most participants have little or very little knowledge (63.5%) of PDs in humans, and 76.8% answered the same when asked about PD in dogs and cats. The veterinarian was considered the main source of information on the subject (43.5%), but 37.6% of the participants responded that they did not receive guidance from veterinarians regarding preventive care for periodontitis during consultations. In relation to brushing the teeth of animals, 34.5% do not do it and 29% did not know they should do it. About the use of snacks and/or toys, 54.9% said they use them as a way to prevent bacterial plaque. Dogs and cats are considered family members, but some care has not yet been humanized. Based on the results, there is a need for greater awareness of owners regarding the general care of their pets and ensuring their well-being.Item Composição bromatológica e digestibilidade in vitro de grãos secos de destilaria com solúveis(Universidade Brasil, 2017) Buosi, João Paulo Fernandes; Dian, Paulo Henrique Moura