TEDE Coleção:

Crescimento e composição químico-bromatológica da palma forrageira e do algodão sob irrigação suplementar

Thu, 28 Feb 2019 00:00:00 GMT

Título: Crescimento e composição químico-bromatológica da palma forrageira e do algodão sob irrigação suplementar Autor: OLIVEIRA, José Fábio Ferreira de Primeiro orientador: MELO, Airon Aparecido Silva de Abstract: Forage cactus and arboreal cotton are crops adapted to the semi-arid regions, providing livestock farmers with a safe source to feed their animals. Although it has good adaptability to regions with serious water restrictions, it is possible that both forage cactus and arboreal cotton reach higher values of biomass when subjected to water availability situations, even affecting their chemical-bromatological quality. The objective of this study was to evaluate the growth and chemical and bromatological composition of the forage cactus biomass of the cv. Orelha de Elefante Mexicana (Opuntia stricta Haw) and the aerial part of the arboreal cotton (Gossypium hirsutum L.r marie gallante Hotch) under supplementary irrigation. The experiments were carried out in the same time interval in nearby areas, at the school farm of the Federal Rural University of Pernambuco, Garanhuns Academic Unit, Garanhuns-PE. The cactus was established with spacing of 1.80 m by 0.40 m, with estimated density of 13.889 plants per hectare and cotton spacing of 1.20 m by 0.90 m, resulting in an estimated value of 9.259 plants per hectare. The experimental design was completely randomized with four replicates for both cultures. The irrigation was by drip irrigation as a volume of 41.6 m3ha-1 in the cactus and 62.5 m3 ha-1 in the cotton, in the frequencies of 0,0, 21, 14 and 7 days. Before harvesting, the growth of cotton and cactus was measured, and the yields of fresh and dry matter in addition to the biometric variables of the cladodes of the forage cactus were determined. The cotton was evaluated in dry and rainy season and the palm was in one and two cuts in 24 months. There was a reduction in the productivity of forage cactus with the increase of irrigation frequencies, independently of one or two cuts in 24 months. Regarding arboreal cotton, better answers were found for most variables, with increased water volume, either in the dry or rainy period. Supplementary irrigation had only influence on the crude protein concentration, degradability and in vitro digestibility of the dry matter of the forage cactus and presented a higher concentration of dry matter and ether extract in a cut at 24 months. While concentrations of total carbohydrates, neutral detergent fiber, acid detergent fiber and acid-digested lignin from arboreal cotton increased. Therefore, in the soil and climatic conditions of the Southern Agreste of Pernambuco, supplementary irrigation negatively and positively influences the growth and productivity of forage cactus and arboreal cotton, respectively. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Dissertação

Atributo químico-bromatológico do Pilosocereus gounellei (A. Weber ex K. Schum. Bly ex Rowl) e Cereus jamacaru DC associado ao estádio vegetativo do caule

Wed, 17 Jul 2019 00:00:00 GMT

Título: Atributo químico-bromatológico do Pilosocereus gounellei (A. Weber ex K. Schum. Bly ex Rowl) e Cereus jamacaru DC associado ao estádio vegetativo do caule Autor: LIMA, Raquel da Silva Primeiro orientador: ANDRADE, Alberício Pereira de Abstract: Among the various species present in the caatinga that can be used as animal feed, we highlight the plants of the Cactaceae family. Highly adapted to the climate of the Semiarid region, and even under conditions of water stress, they preserve their nutritional composition and can be a source of nutrients, especially carbohydrates (main energy source). The work was conducted in Caatinga areas, located in Arcoverde, Sertânia and Serra Talhada regions, Pernambuco State. The objective of this study was to evaluate the nutritional components and digestive potential of native cacti Pilosocereus gounellei (A. Weber ex K. Schum.), Bly ex Rowl) and Cereus jamacaru DC. associated with the vegetative stage of the secondary stem. Chemical-bromatological composition, in vitro digestibility of DM, in vitro gas production and carbohydrate fractionation were determined. There was a difference (P <0.05) regarding the DM composition for P. gounellei and C. jamacaru youth stadium. For the NDF, NDFcp and ADF contents of Pilosocereus gounellei and Cereus jamacaru the young stadium presented lower concentrations in relation to the other stages (P <0.05). In the young and intermediate stages presented high concentrations of non-fibrous carbohydrates and high concentrations of fractions A + B1, being considered excellent sources of energy. Regarding in vitro dry matter digestibility (DIVMS) C. jamacaru presented (P <0.05) higher values in its vegetative stages compared to P. gounellei, this is because C. jamacaru presents high concentrations of fraction B2 of CHO in their stadiums. C. jamacaru presents higher in vitro gas production in its stages and in its naturally occurring area II and III compared to P. gounellei. The chemical-bromatological composition of Pilosocereus gounellei and Cereus jamacaru varies with the development of the vegetative stage regardless of the place of its natural occurrence. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Dissertação

Análise temporal de parâmetros demográficos e biométricos da raça mangalarga

Tue, 16 Jul 2019 00:00:00 GMT

Título: Análise temporal de parâmetros demográficos e biométricos da raça mangalarga Autor: ALMEIDA, Juliete Amanda Theodora de Primeiro orientador: LUCENA, Jorge Eduardo Cavalcante Abstract: It aimed to analyze demographic and biometric changes of the Mangalarga registered animals over the decades. Were used information from 206,428 Mangalarga equines, extracted from the Associação Brasileira dos Criadores de Cavalos da Raça Mangalarga pedigree database system. Among the animals born between 1930 and 2018, were considered the following information: gender, date of birth, coat coloring, birth location, zootechnical evaluation scores and three body measurements of the equines. Using measurements from height at withers, and thoracic and shin girth were calculated five morphometric indexes. The results were submitted to an analysis of variance, using a completely randomized design with subdivided plots, being the plots composed by gender and the subplots composed by decades of selection. Between 1930 and 2018 there was a progressive increase on the pedigree issuing, highlighting the 70´s and 80´s decades, when it registered the breed largest growth rate. In 2018 it was identified Mangalarga breeders in 23 Brazilians states, being the state of São Paulo the one with largest amount of registered Mangalargas, followed by Minas Gerais and Bahia. Between 1970 and 2018 growth of females, stallions and gelded male´s withers heights were observed, with an increase of 5,1 cm, 3,1 cm and 2,1 cm, respectively. While the thoracic girth of stallions increased 3,3 cm, the shin girth of females decreased 0,34 cm. It was concluded that the Mangalarga breed is distributed throughout Brazil, highlighting the southeast region. Regardless of gender, selection applied to the breed made the Mangalarga equines taller. Besides that, stallions became heavier and with larger thoracic girth and the females became hypometric. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Dissertação

Qualidade da silagem do algodoeiro arbóreo [Gossypium hirsutum L. r. marie-galante (Watt) Hutch.]

Thu, 18 Jul 2019 00:00:00 GMT

Título: Qualidade da silagem do algodoeiro arbóreo [Gossypium hirsutum L. r. marie-galante (Watt) Hutch.] Autor: FIGUEIRA, Luiz Henrique Torres Primeiro orientador: MELO, Airon Aparecido Silva de Abstract: There are several species of plants with forage potential in the semiarid region of Brazil, but the chemical composition and nutritional value are generally unknown. The objective of this study was to characterize the silage of the arboreal cotton [Gossypium hirsutum L. r. marie-galante (Watt) Hutch.] regarding chemical-bromatological aspects, qualitative parameters of silage, fractionation of carbohydrates and nitrogen compounds, in vitro dry matter digestibility and ruminal degradation kinetics using in vitro methodologies. The cultivation area of this forage is located in the Experimental Farm of UFRPE / Garanhuns Academic Unit. For ensiling the arboreal cotton was collected when it reached a height of 50 centimeters (120 days after a cut). After collection, the material was minced in a forage chopping machine to reduce particle size. The experiment was conducted in a completely randomized design with a 4x2 factorial arrangement, with four treatments, with five replications each. Two forms of the material were ensiled, one that did not go pre-dried, and one that went through pre-drying (4h). Each form of silage received four treatments, 1- without additives (SA); 2- with bacterial inoculant (CI); 3- with 2% ground corn (CMM) and 4- with bacterial inoculant + 2% ground corn (CMM + I). The bacterial inoculant used were strains of Lactobacillus plantarum and Pediococcus pentosaceus (1g / ton of forage mass). And after 30 days of ensilage, the silo was opened. Took place Chemical-bromatological analyzes, qualitative parameters of ensilage, carbohydrate and protein fractionation, in vitro digestibility of dry matter and ruminal fermentation kinetics were determined by in vitro gas production technique. The dry matter contents of the pre-dry silage were higher than the in nature silage. The crude protein contents in nature silage were higher in the treatments without additive and inoculant. In the in vitro digestibility of dry matter, both in nature silage and pre-dry silage, the inoculant treatments, ground corn and the most inoculant ground corn presented the highest values. All treatments of pre-dry silage were superior to those of in nature silage for the variable total digestible nutrients. The total volume of gas observed was higher in the pre-dry silage treatment with ground corn. Due to the presented nutritional value, regardless of the addition or not of additives, the arboreal cotton silage shows potential to be used in the feeding of ruminants. Instituição: Universidade Federal Rural de Pernambuco Tipo do documento: Dissertação