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Nova Odessa, Brazil

Teramoto J.R.S.,Instituto Agronomico Of Campinas Iac | Pantano A.P.,Instituto Agronomico Of Campinas Iac | Trani P.E.,Instituto Agronomico Of Campinas Iac | Haber L.L.,Instituto Agronomico Of Campinas Iac | And 2 more authors.
Acta Horticulturae | Year: 2011

The therapeutic activity of garlic is very extensive and can combat cardiovascular endocrine diseases, acting as anti-neoplastic and also has antimicrobial, antioxidants and helps the immune system. The pharmacological effect of garlic has been attributed to sulfur compounds obtained by the degradation of allicin, abundant in the tissues of the plant. The state of São Paulo has some garlic accessions and the IAC through germplasm bank has been developing new and more productive cultivars with better medicines. This work aims to characterize the volatile fraction of 41 accessions based on sulfur compounds which attribute medicinal properties to the plant in order to identify the best cultivars based on qualitative and quantitative aspects of the main active ingredients present in the characteristics associated traits. The extraction of essential oils was done by hydrodistillation. The chemical analysis was conducted on a gas chromatograph coupled to a mass spectrometer identification of chemical constituents was performed using the comparative analysis of mass spectra of substances with the database of the GC-MS and retention index. The results were submitted to analysis of variance and means compared by Scott-Knott test. To perform the analysis, we considered each individual treatment, with 3 replicates of injection and each chemical was considered a variable to the already adopted agronomic statistically, the Scott-Knott. It was observed that the yield and relative proportions of principal components for the 41 accessions showed some differences. The yield ranged from 0.02 to 0.38%, while the relative proportion of diallyl disulphide diallyl trisulphide, diallyl tetrasulphide, methyl allyl disulphide, methyl allyl trisulphide, ranged from 1.13 to 51.06%, 27.86 to 57.06%, 0,55 to 21.35%, 1.42 to 7.64% and 0.88 to 12.33% respectively. Source


de Lima J.A.,Institute Zootecnia IZ | Gavioli I.L.C.,IZ | Barbosa C.M.P.,Agencia Paulista de Tecnologia dos Agronegocios APTA | Berndt A.,Institute Zootecnia IZ | And 2 more authors.
Ciencia Rural | Year: 2013

The objective of this study was to evaluate the performance of sheep fed with diets consisting of different proportions of soybean silage and sugarcane tip silage. Twenty four lambs from Morada Nova breed were used, with an average age of 75 days and average weight of 16.98±2.62kg. The following diets were evaluated: T1 = 20% sugarcane tops silage + 80% concentrate, T2 = 20% sugarcane tops silage + 30% soybean silage + 50% concentrate, T3 = 20% sugarcane tops silage + 60% soybean silage + 20% concentrate. The experimental design was a randomized complete block with eight repetitions and each animal was a repetition. It was evaluated the intake of dry matter, organic matter, ash, crude protein, ether extract, neutral detergent fiber, acid detergent fiber, weight gain, and feed conversion ratio and efficiency. The total weight gain, average daily gain, feed conversion ratio and efficiency were similar, with average values of 7.9kg animal-1, 133.3g animal-1 day-1, 6.2 and 0.17, respectively. Diets based on sugarcane tops silage enriched with soybean silage + concentrate provide greater nutrient intake in relation to diet composed only of sugarcane tops silage + concentrate. Sugarcane tops silage supplemented with protein concentrate or enriched with soybean silage with lower inclusion of concentrate resulted in similar weight gains and feed conversion efficiency. Source


Boligon A.A.,Sao Paulo State University | Sala V.E.,Sao Paulo State University | Mercadante M.E.Z.,Institute Zootecnia IZ | Ribeiro E.G.,Institute Zootecnia IZ | And 2 more authors.
Ciencia Rural | Year: 2013

The objective of this study was to estimate heritability and repeatability for different measures of cows' productive efficiency and determine the best way to calculate the weight ratios, in order to use as selection criteria in Nelore herds. Data of Nelore animals from Centro APTA Bovinos de Corte-Sertãozinho, Instituto de Zootecnia were analyzed. The animals are selected for higher yearling weight (NeS and NeT herds, considered as a single herd in this paper) and, for mean yearling weight (NeC) within contemporary group, since 1980. The traits used in this study were: 1) RPN = ratio of birth weight of the calf / cow weight at calving; 2) RPN2 = ratio of birth weight of the calf / metabolic cow weight at calving; 3) RPD = ratio of weaning weight of the calf / cow weight at weaning and, 4) RPD2 = ratio of weaning weight of calf / metabolic cow weaning weight. For estimate genetic and phenotypic parameters, were considered two files: cows with calves (CB) or with and without calves (SB). The RPN and RPN2 were calculated only on CB file, and RPD and RPD2 were calculated in both files (CB and SB). Genetic parameters were estimated by restricted maximum likelihood. Estimates of heritability for traits RPN; RPN2; RPD_CB; RPD2_CB; RPD_SB and RPD2_SB were: 0.17±0.02, 0.16±0.02, 0.22±0.04, 0.19±0.03, 0.20±0.01 and 0.16±0.01, respectively. The repeatability estimates ranged from 0.22 to 0.68. The use of weight ratios as selection criteria should promote, at long-term, improvements in production efficiency. In some breeding programs, weight ratios have been considered only as information for disposal of cows, but could be included in selection indices, especially if it is calculated considering the metabolic weight of cow at weaning from both cows, that weaned a calf as those that failed to wean. Source


Canova E.B.,Institute Zootecnia IZ | Bueno M.S.,Institute Zootecnia IZ | Moreira H.L.,Institute Zootecnia IZ | Possenti R.,Institute Zootecnia IZ | Bras P.,Institute Zootecnia IZ
Ciencia e Agrotecnologia | Year: 2015

The use of alternative feedstuffs in animal diet, such as residues derived from the biodiesel production aims to increase productivity and reduce costs in animal production. Them aim of this study was to evaluate the substitution effect of 0, 22, 44 and 64% of soybean meal protein by Crambe cake (Crambe abyssinica Hochst) protein in lamb diet. In the in vivo experiment, 20 lambs were used and evaluated the apparent digestibility, nitrogen balance and voluntary DM intake. The replacement of the protein resulted in a linear decrease in apparent digestibility coefficient (ADC) of dry matter (DM), organic matter (OM), ether extract (EE), gross energy (GE), acid detergent fiber (ADF), neutral detergent fiber (NDF), cellulose (CEL) and the percentage of total digestible nutrients (TDN), which resulted in decreased daily DM intake. The blood level of urea, glucose, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were not affected. In vitro gas production technique (GP) evaluation of diets showed a significantly decrease (P<0.05) of the total gas and methane production without altering the true degradability of DM and OM and the partition factor (PF). Replacement of soybean meal protein by the Crambe cake protein decreased digestibility of the fiber fraction of the diet, the voluntary intake of DM and methane, without altering rumen fermentation. Crambe cake can be utilized as lamb’s food, because, despite reduced intake, assure a large energy intake and similarity to soybean meal protein. © 2015. Federal University of Lavras, All rights reserved. Source

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