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| Author(s): |
Maryane Sespere Faria de Oliveira
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | Jaboticabal. 2016-03-08. |
| Institution: | Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal |
| Defense date: | 2016-02-15 |
| Advisor: | Maria Cristina Thomaz |
| Abstract | |
Three trials were realized to evaluate the nutritional composition and energy value of sugarcane fiber, the effects of their inclusion in diets for finishing swine for late slaughter, in a qualitative feed restriction program, and the effects on the production of biogas from the waste of these. The first trial, was conducted to evaluate the composition and nutritional value of the sugarcane fiber, being used 20 pigs with initial weight of 77.55±1.74kg were distributed into two experimental diets (basal diet and test diet with inclusion of 30% sugarcane fiber) and 10 replicates. In the second experiment evaluated the animal performance, carcass traits and meat quality. Fifty barrows with initial body weight of 79.33±6.22kg and final body weight of 123.37±11.18kg were allocated in a randomized block design with five experimental diets (0, 5, 10, 15 and 20% of sugarcane fiber) and 10 replicates. The third experiment evaluated the production of biogas and its production potencial, 40 biodigesters type batch were distributed in a completely randomized design with five treatments (0, 5, 10, 15 and 20% of sugarcane fiber) and eight replications. The low levels of nutrients and digestible energy of the sugarcane fiber reduced the digestibility coefficients of experimental diets, they got worse performance and consequently lower final weight for slaughter. Thus the carcass weight, the ham weight and the amount of lean meat were reduced, as there was an increase in fiber levels of sugarcane in the diets. However, improvement in carcass traits such as decreased backfat thickness and increase of the ratio meat / fat were observed without changing the meat quality parameters. The mineral contents in the feces were reduced, but the waste excretions increased as there was an increase in fiber levels of sugarcane in the diets. The production of biogas and methane, as well as their production not influenced by the diets. Therefore, the use of sugarcane fiber in qualitative feeding programs for heavy swine improves the quality of animal carcasses and reduces the mineral content in the feces, but the worse performance increases the days required to reach the weight desirable (130 kg) for slaughter. (AU) | |
| FAPESP's process: | 12/13164-9 - FIBER SUGARCANE FOR HEAVY PIGS IN QUALITATIVE FOOD PROGRAM RESTRICTION |
| Grantee: | Maryane Sespere Faria de Oliveira |
| Support Opportunities: | Scholarships in Brazil - Doctorate |