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Beef of Nellore cattle has limited tenderization despite pH decline in Longissi...
Ramos,Patricia Maloso; Santos-Donado,Priscila Robertina dos; Oliveira,Giuliana Micai de; Contreras–Castillo,Carmen Josefina; Scheffler,Tracy L.ABSTRACT: Bos taurus indicus temperament is variable and affects beef tenderization. Our objective was to investigate temperament and performance of non–castrated Nellore and identify groups based on Longissimus lumborum (LL) pH decline as well as beef characteristics produced by those groups. We investigated 94 animals with a subset of carcasses (n = 24) selected based on LL pH at 24 h postmortem (pm) to repre...
Imunocastração e ractopamina na qualidade de lombos suínos processados com sal ...
Iocca,Andréia Fernanda Silva; Lucas,Daniel Silva; Fausto,Daiane Aparecida; Delgado,Eduardo Francisquine; Pértile,Simone Fernanda NedelO objetivo deste trabalho foi avaliar o efeito da imunocastração e da suplementação com ractopamina na qualidade do lombo suíno processado com sal e tripolifosfato de sódio. Os tratamentos consistiram de condição sexual dos suínos (fêmeas, machos castrados fisicamente e imunocastrados) e suplementação ou não com ractopamina na dieta de terminação. Os cortes de lombos submetidos ao processamento com tripolifosfa...
Pork loin two-toning and drip loss in relation to steak cross-section anatomica...
Ramos,Patricia Maloso; Delgado,Eduardo FrancisquinePerception of color and its relationship to water holding capacity are important for defining the yield and quality of the pork production process. The aim of this study was to identify the relationship among color measurements taken at various anatomical positions in the cross-sectional surface of pork loin steak, and measurements of fluid exudation and its glucose concentration, as well as the impact on these...
Intestinal histomorphology in Pseudoplatystoma fasciatum fed bovine colostrum a...
Rodrigues,Ana Paula Oeda; Pauletti,Patricia; Kindlein,Liris; Delgado,Eduardo Francisquine; Cyrino,José Eurico Possebon; Machado-Neto,RaulHistological responses of the intestine are key for evaluating nutritional value of feed ingredients, since the organ is not only the chief site of feed digestion and nutrient absorption but also plays an important immunological function. Histomorphological alterations were evaluated in the intestine of juvenile striped catfish, Pseudoplatystoma fasciatum, fed diets containing 0 (control), 10 or 20% inclusion o...
Influence of feeding regime and finishing system on lamb muscle fiber and meat ...
Gallo,Sarita Bonagurio; Siqueira,Edson Ramos de; Delgado,Eduardo Francisquine; Silva,Maeli Dal Pai; Rosa,Gilberto Teixeira daThe study verified the influence of different nutritional levels of the dams, before parturition, the weaning age of the lambs and the finishing system on lamb muscle fiber morphology and meat quality. Ile-de-France × Bergamacia crossbred dams grazing on natural grassland were divided into two groups: 1) nutritional supplement 30 days before the parturition (SUPL), and 2) no nutritional supplement (NS). These g...
Differential growth retardation and Myofibrillar fragmentation in rats submitte...
Leonardo,Eric Franchi; Delgado,Eduardo Francisquine; Bagaldo,Adriana Regina; Lanna,Dante Pazzanese Duarte; Paz,Claudia Cristina Paro deFeed regimens alter muscle growth rate, hence they might impact the proteolytic system involved in tenderization during meat conditioning. The aim of this project was to verify the effects of feed restriction regimens on muscular and animal growth and their impact on postmortem myofibrillar fragmentation. The regimens were: 1) Feeding ad libitum for 11 d (Al/2); 2) Feed restriction (60% of Net Energy for mainte...
Sarcoplasmatic and myofibrillar protein changes caused by acute heat stress in ...
Santos,Carolina de Castro; Delgado,Eduardo Francisquine; Menten,José Fernando Machado; Pedreira,Aparecida Carla de MouraAcute heat stress (AHS) modifies the structure of myofibrils affecting functional properties of meat, mainly the water holding capacity. This experiment aimed to identify changes in proteolysis and migration between the myofibrillar and sarcoplasmatic fractions due to pre-slaughter AHS. Myofibrillar fragmentation index (MFI), SDS-PAGE, western blot of vinculin (WB) and shear force (SF) were determined. Six hund...
Desenvolvimento intestinal de bezerros recém-nascidos aleitados com colostro de...
Bagaldo,Adriana Regina; Pauletti,Patricia; Delgado,Eduardo Francisquine; Lanna,Dante Pazzanese Duarte; Kindlein,Liris; Machado Neto,RaulCom o objetivo de avaliar o efeito de diferentes níveis de IGF-I sobre os indicadores de atividade celular hepática e intestinal em bezerros recém-nascidos, 42 vacas holandesas gestantes foram aleatoriamente distribuídas em dois grupos. O grupo rbST recebeu hormônio de crescimento (500 mg rbST) e o grupo controle recebeu injeção de vitamina E. As aplicações se iniciaram aos 35 dias pré-parto e foram repetidas a...
Brazilian consumers' perception of tenderness of beef steaks classified by shea...
Delgado,Eduardo Francisquine; Aguiar,Ana Paula; Ortega,Edwin Moisés Marcos; Spoto,Marta Helena Fillet; Castillo,Carmen Josefina ContrerasThe knowledge of consumer perception of meat tenderness and taste is essential to forecast a Brazilian quality value-based beef market. This study aimed to verify perception of tender (WBSF < 4.1 kg) from tough (> 4.8 kg) strip loin steak or uncharacteristic (calcium-treated/Ca-IM) and normal (non-calcium/NO-Ca) meat taste by consumers according to gender, age, education and income levels. Steaks were previousl...