TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
Navegar
2 resultados
Resultados da Pesquisa
Item 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/1664630925590165The 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.Item Histomorfometria do epitélio omasal de ovinos alimentados com dietas baseadas em palma forrageira(2018-08-22) Castro, Amanda Lucy Ferraz de; Guim, Adriana; Silva, Tomás Guilherme Pereira da; http://lattes.cnpq.br/3632014794052859; http://lattes.cnpq.br/5179137865818915The objective of this study was to evaluate the effect of diets based on forage palm on histomorphometric and histopathological parameters of omasum epithelium and ovine abomasum submitted to forage palm diets. Thirty-two lambs with no defined racial pattern were used, male, uncastrated, with a mean age of six months and initial body weight of 21 ± 2.06 kg, housed in individual stalls equipped with feeder and drinking fountain. The animals were distributed in a completely randomized design with four treatments and eight replicates. The experimental period was 73 days and the experimental treatments consisted of a base diet (elephant grass hay, maize corn meal, soybean meal, urea and mineral salt) and three other diets in which elephant grass hay was replaced in 68% by genotypes of forage palm (small, IPA-Sertânia or Mexican elephant ear), all formulated to allow weight gain of 200 g day-1. After 73 days of confinement, the animals were weighed and slaughtered following the norms in force in the country. The weights of the stomachs and their respective contents were quantified, as well as tissue samples of the omasum and abomasum were collected for histological analysis. Up to the present moment, it can be stated that the diets based on forage palm provided greater stomach weight, with lower content.