Navegando por Autor "Pessoa, Ricardo Alexandre Silva"

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Búfalo (Bubalus bubalis): pontos que destacam a importância da espécie como animal de produção
(2022-10-07) Teixeira, Maria Victoria Viegas de Morais; Pessoa, Ricardo Alexandre Silva; Nascimento, Júlio Cézar dos Santos; http://lattes.cnpq.br/4343017315156292; http://lattes.cnpq.br/0245806512931662; http://lattes.cnpq.br/9414229185488577
This present literature review sought to highlight the history of the buffalo, during its introduction and subsequent settlement in all regions of the world, in addition to emphasizing some important characteristics of the buffalo species, characteristics that differentiate them from other species, such as their rusticity, docility and high adaptive capacity to the diverse adverse environments of Brazil and the world. Even with the attributes that the buffalo has, it is still undervalued and unknown by much of society. Undervalued by the producer market, which sells much of the meat of this animal as being of the bovine species and undervalued and unknown by many people who do not even know or have consumed any product from them and hear and spread false comments about this species. From this, arose the desire to approach this topic, seeking to add reliable information to make the reader have more knowledge and end his disapproval of the species.
Carne de búfalo: produção, consumo e características nutricionais
(2022-10-07) Silva, Maria Vitória Gomes da; Pessoa, Ricardo Alexandre Silva; http://lattes.cnpq.br/0245806512931662; http://lattes.cnpq.br/3205016641166474
This study aimed to address the production, consumption and nutritional characteristics of buffalo meat. The history of buffalo farming, the introduction and dissemination of buffaloes in the Americas was addressed, with a focus on Brazil, as well as talking about its production in the northeast region and in the state of Pernambuco. The meat production scenario and its obstacles, consumption and strategies to leverage its productivity were presented. Because the qualities of buffalo meat are undeniable, the product shows superior quality when compared to similar species, however, the consumption of meat is still not so widespread, since there is a stigma related to meat, where it is seen by many as a inferior quality product. So, using marketing strategies to promote its nutritional characteristics is an alternative that can boost the search for the product and, therefore, its production.
Comportamento ingestivo de novilhas bubalinas alimentadas com níveis crescentes de concentrado em dietas com cana-de-açúcar
(2019-01-18) Lopes, Myrna Sanguinetti Monteiro; Pessoa, Ricardo Alexandre Silva; http://lattes.cnpq.br/0245806512931662; http://lattes.cnpq.br/1664630925590165
The objective of this study was to evaluate the effect of the association of sugarcane with increasing levels of concentrate on the ingestive behavior of buffalo heifers. The experiment was conducted in the Bubalinoculture Sector of the Animal Science Department of UFRPE. Twenty buffalo heifers of the Murrah breed, with initial mean body weight of 100 ± 13 kg, were used in a completely randomized design with four treatments and five replicates. The study lasted for 84 days. Experimental diets were isoprotective, using sugar cane (stem) as bulky, and corn meal, wheat bran, soybean meal, mineral mixture and urea composing the concentrate that was offered at increasing levels (20, 40, 60 and 80%). Ingestive behavior (time spent on feeding, rumination and leisure) were measured by direct visual observation every 5 minutes in the daytime (06h00 to 17h55) and nocturnal (18h00 to 05h55) for 3 consecutive days (72h). One meal was considered a long feeding sequence with at least two successive feeding periods of 5 minutes. The minimum interval between meals was considered to be 20 minutes. There was a significant effect of the period for feeding time (FT), rumination (TR) and leisure (L) and on the frequency of meals (FM). Only the FT was affected by the inclusion of concentrate in the buffalo diet, observing less time in the diet with 80% concentrate. For the diurnal period the heifers spent more FT, TO and FM; beginning to ruminate more in the nocturnal period. It is believed that as the animals spent more time in the diurnal period with feeding, the nocturnal period was dedicated to rumination. The higher L at night can be explained by the fact that ruminants prefer to perform this activity in the period when the temperatures are milder, being these at night time. The buffaloes, in their moments of leisure, seek to immerse themselves in the water, and the animals in the present study were given baths throughout the day, providing greater comfort and greater permanence in that period. From this we can conclude that the ingestive behavior of buffaloes is influenced by the period of the day. Diets with higher proportions of concentrate influence the feeding time, where they gave more time from the diurnal period to activity related to the search for food and the nocturnal period for rumination.
Correlações entre parâmetros obtidos por meio de ultrassonografia e na carcaça de novilhos bubalinos terminados em confinamento
(2021-12-03) Vieira, Guilherme Heliodoro Pedroso; Pessoa, Ricardo Alexandre Silva; http://lattes.cnpq.br/0245806512931662; http://lattes.cnpq.br/8840572890087004
In order to evaluate the correlations between measurements determined in vivo by ultrasound and in the carcass of feedlot-finished buffalo steers, the experiment was carried out in the Buffalo Culture Sector of the Animal Science Department of the Federal Rural University of Pernambuco. Twenty whole buffalo Murrah steers were used, with an initial average weight of 300 kg, collective in individual pens. Feeding was confirmed by sugarcane corrected with urea and small palm (Nopalea cochenillifera) with urea, replacing wheat bran, and ad libitum approval, at 06:00 and 18:00, allowing about 10% of the leftovers. After the 80 days, experimental measures were carried out with measurements of the ribeye area (AOLU) and subcutaneous fat thickness (EGSU) by ultrasound. Afterwards, the animals were introduced to fasting for 16 hours and slaughtered to obtain the carcass. In the cold carcass, between the 12th and 13th ribs, AOLC and EGSC were measured. The experimental design adopted was in randomized blocks with four treatments. Pearson's correlation was performed between measurements determined in vivo by ultrasound and in the carcass of Murrah steers, accepting up to a level of 5% precision. Ultrasound-measured AOLU was highly correlated with carcass-measured AOLC (0.96) and carcass compactness index (0.87) selected on carcass (P<0.001). Ultrasound-measured EGSU showed high correlation (P < 0.001) with carcass EGSC (0.94) and low but slight correlation (P < 0.05) with ICC (0.48) and AOLC (0.48) chose on the carcass. AOLU and EGSU measurements adjusted by ultrasonography can be used in the evaluation of these parameters in the carcass.
Relatório de Estágio Supervisionado Obrigatório
(2021-12-12) Soares, Raquel Cristina Carvalho; Pessoa, Ricardo Alexandre Silva; http://lattes.cnpq.br/0245806512931662; http://lattes.cnpq.br/1279928414920644