TCC - Zootecnia (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/478
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Item Fontes lipídicas na gestão estratégica de redução de custos com alimentação de cabras leiteiras(2023-09-15) Araújo, Ayrton Manuel Silva de; Soares, Luciana Felizardo Pereira; http://lattes.cnpq.br/4071178363761831; http://lattes.cnpq.br/4482266576342953Animal feed is crucial for dairy production and represents a significant part of production costs. The objective was to evaluate lipid sources, as a strategy to reduce feed costs, whether or not associated with Spineless cactus in goat milk production. For the study, 12 lactating Saanen goats were used, with an average body weight of 55 ± 8 kg, distributed in a 4x4 Latin square, with a 2x2 factorial arrangement. The treatments consisted of two lipid sources, Coconut fruit pulp by-product (PC) and whole cottonseed (CA), associated or not with Orelha de Elefante Mexicana (POEM), in the following proportions: PC - 5% Coconut fruit pulp by-product; PC+POEM - 5% Coconut fruit pulp by-product + 25% POEM; CA – 20% whole cottonseed; CA+POEMA - 20% whole cottonseed + 25% POEMA. Animals that consumed diets that had whole cottonseed as the main source of energy showed higher performance indices (P<0.05). The PC+POEM treatment presented the lowest cost for 1 kg of dry matter (R$ 1.78). The PC diet demonstrated lower daily food costs (R$ 2.54). Total income was higher for the CA + POEM diet (R$ 8.17), as was net income (R$ 4.19). Therefore, it is recommended to combine whole cottonseed with forage palm Orelha de Elefante Mexicana, in the feeding of lactating goats, due to the reduction in feed costs, especially in roughage and better performance, contributing to greater profitability of the activity.Item Efeito da dieta basal sobre o desempenho de cabras em lactação(2023-09-11) Souza, Margot Santos de; Ferreira, Marcelo de Andrade; http://lattes.cnpq.br/4818123702136736; http://lattes.cnpq.br/4617261628043561Goat farming has increasing in Brazil, especially in the Northeast region, which is responsible for 32% of the country's total production. Due to the edaphoclimatic conditions of this region some studies are carried out trying to improve the performance of those animals. Therefore, the present study intented to evaluate the effect of different sources of fiber (corn silage, sorghum silage, pangolon hay or sugarcane bagasse) associated with cactus pear in diets for Saanen goats in lactation process on nutrient intake and digestibility, ingestive behavior, milk production and composition. The experiment was carried out at the Experimental Station of the Pernambuco Agronomic Institute (IPA) in Sertânia (Pernambuco). Twelve multiparous and lactating goats were used in this experiment with an average weight of 48.9 kg, average initial production of 2.8 kg of milk/day and lactation period of 80 days. The goats were weighed, identified and distributed according to their productivity in three simultaneous Latin squares (4 x 4), containing four animals, four treatments and four experimental periods. The 4 experimental period LASTED 21 days each, with the initial 14 days for adaptation of the animals, and others for data and sample collection (food, leftovers, feces and milk). The diets were offered ad libitum as a complete mixture, three times a day, allowing 5 to 10% of the total dry matter supplied. The goats were manually milked twice a day. For the ingestive behavior, the activity that the goat is performing (feeding, rumination or idleness) were observed every 10 minutes for 24 hours. Statistical analyzes were performed using a PROC MIXED package from SAS (2014). Intake of dry matter (2.58kg/day) and organic matter (2.30kg/day), crude protein (0.385 kg/day), ether extract (0.170 kg/day), neutral detergent fiber (0.895 kg/day), non-fiber carbohydrates (0.858 kg/day) and metabolizable energy (5.66 Mcal/day) did not differ between fiber sources that made up the basal diet (P>0.05). Fiber sources did not influence the digestibility of dry matter and nutrients (P>0.05). The association of cactus pear with silages, hay and sugarcane bagasse did not alter milk production without correction, corrected for 3.5% of fat and corrected for energy (2.78; 2.53 and 2. 55 kg/day, respectively), in addition to the composition of the milk (P>0.05). The diets did not cause changes in any of the items evaluated in the ingestive behavior (P>0.05). It is recommended that any of the fiber sources be purchased along with cactus pear in the basal diet of lactating goats.Item Glicerina bruta na dieta de caprinos confinados: características de carcaça e de perna(2019-02-01) Cordeiro, Eduardo Henrique Araújo; Véras, Antonia Sherlânea Chaves; http://lattes.cnpq.br/0074248045711399; http://lattes.cnpq.br/9903022769655568Goat farming is a widespread activity in the Brazilian semi-arid region. The goat has great adaptation to the climate of this region, which suffers with irregularity in the rains, damaging the production of forage resources. The practice of confinement is an option of the producer to minimize food shortages, implying higher food costs. With increasing supply, crude glycerin (GB) becomes an alternative ingredient in the diet formulation of these animals. The objective of this study was to evaluate the carcass and leg characteristics of goats confined when fed with different levels of crude glycerin (0, 6, 12 and 18%) in the diet. A total of 40 goats were used, with no defined racial pattern, with a mean initial weight of 19.52 ± 2.35 kg, divided into four treatments with 10 replicates, using a completely randomized design. In 58 days of evaluation, the consumption and leftovers of these animals were recorded daily, and food samples and leftovers were collected for bromatological analysis to determine dry matter intake (DMI). At the end of the experimental period, slaughtering was carried out to determine the carcass and leg characteristics of the animals. The content of the gastrointestinal tract increased according to higher levels of GB. The empty body weights; hot and cold carcass weight and their yield; the loin eye areas; and the weights of the reconstituted leg and respective muscles and bones, decreased linearly. The inclusion of GB with low glycerol (63.06%) in up to 18% in DM in the goat diet compromises the main characteristics of the carcass and leg of the animals.Item Análise histomorfométrica do epitélio ruminal de caprinos alimentados com palma forrageira(2018-08-23) Nascimento, Andreza Guedes de Oliveira; Batista, Ângela Maria Vieira; Silva, Tomás Guilherme Pereira da; http://lattes.cnpq.br/3632014794052859; http://lattes.cnpq.br/1209459577975499; http://lattes.cnpq.br/1231614424586412The objective of this study was to measure histomorphometric variables of the ruminal epithelium of goats fed forage palm (total epithelium thickness, keratin layer thickness and thickness of non-keratinized layers) fed with forage palm genotypes: small (Nopalea cochenillifera Salm Dyck) and ear of Mexican elephant (Opuntia stricta Haw), originating from the municipalities of Pernambuco, Lagoa de Itaenga and Ibimirim, in that order, being transported to Recife every 15 days. For each new lot of forage palm, samples were collected with the purpose of quantifying the dry matter and crude protein contents for adjustment of rations. Tifton-85 grass hay, maize corn meal, soybean meal and micro ingredients were commercially available, 36 male SPRD male goats with an average age of 1 year and mean body weight (ICP) of 19.0 ± 2.8 kg were used in a completely randomized design with three treatments and twelve replicates. The animals were individually housed in slatted wooden slats with 1.8 m x 1.0 m (1.8 m2) dimensions, provided with a feeder and drinking fountain, arranged in masonry sheaths covered with asbestos cement tiles. The experiment lasted 100 days, with 30 days for adaptation of animals to experimental conditions and 70 days for data collection. The animals that received the control diet had a greater thickness of the keratinized layer and the non-keratinized layers of the ruminal epithelium (dorsal sacks) in comparison to those that received the diet containing the small palm, without significantly differing from the Mexican palm ear treatment, control diets and with Mexican elephant ear palms cause greater thickening of the keratin layers and non-keratinized layers of the epithelium of the dorsal bags of the rumen of goats, however they can be used to feed goats as they are a good source of nutrients.