Time filter

Source Type

Bueno-Ibarra M.A.,Centro Interdisciplinario Of Investigacion Para El Desarrollo | Chavez-Sanchez M.C.,Research Center En Alimentacion sarrollo ad | Alvarez-Borrego J.,CICESE
Aquaculture | Year: 2011

An algorithm is developed to identify the white spot syndrome virus (WSSV) inclusion bodies, found in shrimp tissues by the analysis of digitalized images from infected samples. WSSV slide images were acquired by a computational image capture system and a new identification algorithm is developed to obtain those infected shrimp samples by the quantitative measurement of the complexity pattern found in WSSV inclusion bodies. Representative groups of WSSV inclusion bodies from infected shrimp tissues and organs were analyzed. © 2011 Elsevier B.V. Source

Victoria-Campos C.I.,Research Center En Alimentacion sarrollo ad | Ornelas-Paz J.D.J.,Research Center En Alimentacion sarrollo ad | Yahia E.M.,Autonomous University of Queretaro | Jimenez-Castro J.A.,Autonomous University of Chihuahua | And 5 more authors.
Journal of Agricultural and Food Chemistry | Year: 2013

Raw and heat-processed (boiled and grilled) jalapeño peppers at three intermediate ripening stages (brown, 50% red, and 75% red) were digested in vitro without fat and in the presence of soybean oil (SO) or beef tallow (BT), and the micellarization of their lipid soluble pigments (LSP) was measured. The micelles from digestions with brown, 50% red, and 75% red peppers contained up to 27, 35, and 29 different LSP, respectively. Boiling and grilling decreased the micellarization of LSP from brown peppers, whereas the opposite was observed with 75% red peppers. Heat processing did not clearly affect the micellarization of LSP from 50% red fruits. The impact of fat on LSP micellarization was ripening-dependent, but the micellarization of the less polar carotenoids was always increased by SO or BT. This positive effect of fat was higher with SO than with BT. © 2013 American Chemical Society. Source

Meza-Nieto M.A.,Research Center En Alimentacion sarrollo ad | Meza-Nieto M.A.,Autonomous University of the State of Hidalgo | Gonzalez-Cordova A.F.,Research Center En Alimentacion sarrollo ad | Becerril-Perez C.M.,Colegio de Mexico | And 4 more authors.
Agrociencia | Year: 2012

Genetic variants of β-lactoglobulin (β-LG) A and B have been associated with milk production and composition, which can vary between dairy breeds. The aim of this study was to determine the relationship of genetic variants of β-LG with milk composition and production of Holstein cows (H) and Tropical Milking Criollo (TMC). Three hundred and fifty milk samples of H cows and 64 of TMC were characterized. Individual information on production and reproduction records of both breeds was collected. The chemical composition of each sample was determined by mid-infrared spectroscopy and somatic cell count (SCC) by flow cytometry. An analysis of variance was conducted with mixed models to study the effect of β-LG phenotype on the chemical composition of milk, SCC, milk production, fat and protein adjusted to 305 d and milk yield at the day of sampling. In the statistical model, the random effect of the cow's father and the fixed effects herd-year-season, phenotype and number of birth were included, besides the covariates days in milk and cow age β-LG phenotype was found to have a significant effect on chemical composition of milk. The percentage of fat, protein, nonfat and total solids were significantly (p ≤ 0.05) higher in BB phenotype for both breeds. The milk yield/production fitted to 305 d was higher (p ≤ 0.05) for AA phenotype of H cows. Source

Perez-Robles J.,Autonomous University of Baja California | Diaz F.,CICESE | Ibarra-Castro L.,Research Center En Alimentacion sarrollo ad | Giffard-Mena I.,Autonomous University of Baja California | And 3 more authors.
Aquaculture Research | Year: 2016

To evaluate the effect of salinity on the hatching rate, hatching time, survival percentage, osmoregulation pattern and the incidence of abnormalities in newly hatched larvae, embryos of Sphoeroides annulatus (Jenyns 1842) were exposed to 5, 12, 19, 26, 33, 35 and 40 psu. The hatching percentage (HP), survival percentage (PS), normal larvae (PN), deformed larvae (PD) and hatching time (HT) were significantly affected by salinity (P < 0.05). The embryos exposure to 5 psu caused that HP, PS, and PN had lower values (2.6 ± 0.32, 7.78 ± 0.88 and 70.37 ± 7.75% respectively), PD and HT had the highest values 26.67 ± 7.54% and 55.53 ± 0.59 h respectively. However, the survival of newly hatched larvae was not possible in 5 ups, though it was in 40 ups. Osmotic pressure (OP) remained constant in each salinity, whereas isosmotic points changed from 435.5 mOsm kg-1 in 21 h post fertilization to 342.8 mOsm kg-1 at 47 h post fertilization, obtaining a pattern of hyper-osmoregulation at lower salinities and hypo-osmoregulation in higher salinities. This study is the first carried out on embryos of this species; therefore, the obtained information is essential to improve strategies and growing conditions in their initial development. © 2016 John Wiley & Sons Ltd. Source

Discover hidden collaborations