Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 33 for “"Intramuscular fat"”.
-
Nutritional Approaches to Increase Intramuscular Fat in Pigs
… to evaluate the effects of nutrition on intramuscular fat (IMF) and pork quality. The first study evaluate if intramuscular fat content can be increased in pigs by feeding vitamin A deficient diets. This study demonstrated that there was no effect of feeding vitamin A (P > 0.05) on …
-
Cellular and Molecular Mechanisms Governing Intramuscular Fat Development and Growth in Cattle
Intramuscular fat (IMF), the adipose tissue deposited between skeletal muscle fibers, plays a critical role in enhancing beef flavor, juiciness, and tenderness. Compared to subcutaneous fat (SF), IMF exhibits delayed development and slower growth. What causes IMF to develop later and grow more …
-
The Impacts of Intramuscular Fat Content and Other Biochemical Attributes of Fresh Pork Loins on Sensory Characteristics
The effect that marbling, or intramuscular fat, has on sensory properties (tenderness, juiciness, flavor) and mechanical tenderness has been of interest with many food service and retail programs marketing high quality pork. Two trials were conducted to determine if marbling improves sensory …
-
Characterizing the amount and variability of intramuscular fat deposition of pork loins using barrows and gilts from two sire lines
… 15, 20, and 24 of age to estimate marbling, back fat, and loin depth. Two or four contemporary pigs were scanned at each of these time points and then slaughtered on the following day to validate the ultrasound procedure. All trial pigs were slaughtered at 24 weeks of age, and loins were …
-
Nutritional Management Affects Feedlot Performance, Carcass Characteristics and the Relationships of Intramuscular Fat, Subcutaneous Fat, and Feed Efficiency of Normal and Early -Weaned Heifers
… and breed on the relationships of 12 th rib fat, marbling score and feed efficiency were evaluated using ultrasound technology. The data suggested that early weaning heifers and finishing them as calves resulted in more efficient gains (P ≤ 0.01) at any given marbling score and higher …
-
Transcription profiles of differentially marbled beef cattle
… muscle that are associated with the amount of intramuscular fat deposition. Twenty-eight steers and heifers were harvested at the University of Illinois Meat Science lab over the course of 4 months in early 2009. Samples of longissimus muscle were removed within 90 minutes post-mortem and …
-
Residual feed intake, breed of sire and dam, and individual sire affect performance and carcass characteristics and rates of back fat and intramuscular fat of feedlot steers
… carcasses with more kidney, pelvic, and heart fat than carcasses of steers in the L and M RFI group. No differences were observed (P = 0.89) among RFI groups for meat tenderness using the Warner Bratzler shear force method. Breed of dam exhibited some differences for initial (P < 0.0001), final …
-
The Influence of Growth Stage on Carcass Composition and Factors Associated with Marbling Development in Beef Cattle
<p>Subcutaneous fat and intramuscular fat (marbling) both increase in beef cattle during the feeding phase, but are antagonistic in regard to their contribution to beef carcass value. The objective of this study was to determine whether cellular factors associated with marbling development change …
-
Effects of Extrinsic and Intrinsic Factors on Meat Quality and Muscle Biology of Livestock
… genes and proteins related to muscle growth, and intramuscular fat deposition of livestock. Chapter II evaluated the effects of crude protein levels on the growth performance, meat quality, and genes expression of finishing lambs. For nine weeks, the lambs were assigned randomly to low-protein …
-
The use of real-time-ultrasound to predict genetic attributes of body composition traits in live beef cattle
… (ld) muscle included, 12th-13th rib carcass fat thickness (FAT), USDA marbling score (MS) and chemical percentage of intramuscular fat (PIFAT). Before slaughter, a cross-sectional ultrasound ld image between the 12th-13th ribs was collected to calculate ultrasound fat thickness (UFAT). A …
-
Influencia de la raza y de la alimentación sobre el contenido y características de la grasa intramuscular del lomo de cerdo ibérico: efecto sobre parámetros determinantes de la calidad
… l. dorsi), particularly in those related to intramuscular fat content and fatty acid composition, and also the effect on the sensory quality and consumers preference for the dry-cured product (dry-cured loins processed without garlic and paprika) were investigated. The use of concentrates …
-
Comparison of carcass composition, performance, and tissue deposition rates among breeds of swine
… rib loin muscle area, 10th rib off-midline backfat, and intramuscular fat percentage of the longissimus dorsi.</p>
-
IMPLICATIONS OF AGING AND DEGENERATIVE ROTATOR CUFF TEARS FOR UPPER LIMB MUSCLE MORPHOLOGY, STRENGTH, AND FUNCTION
… distribution and spatial clustering of intramuscular fat to help elucidate the three-dimensional presentation which will ultimately assist in our understanding of how intramuscular fat limits force-generating capacity of muscle tissue. Using this approach, I detected that older adults …
-
Effects of nutritional plans and genetic groups on quantitative traits of pigs
… of genotypes for high performance led to a fat level reduction and loss of meat quality as consequence. An alternative to improve meat quality is the crossbreeding of non-selected local pig breed, such as Piau, with improved breeds such as Duroc, Pietrain and Large White. However, growth …
-
An Analysis of Body Condition Scores, Ultrasonographic Fat Thickness, and the Interaction Between the Two on Conception Rates in Yearling Cross-Bred Heifers
… Body condition scores (BCS), ultrasonographic fat thickness (UFT), ultrasonographic percent intramuscular fat (UPF), weight per day of age (WDA), weight (WT), and artificial insemination technician (AI) were all used in assessing conception rates. No variable was correlated to pregnancy …
-
Testing purebred and commercial combined selection in Angus: Tri-County Steer Carcass Futurity
… BW at time of harvest (FBW) and carcass backfat thickness at the 12th rib (CFAT), marbling score at the 12th rib (CMAR) and ribeye area at the12th rib (CREA). Purebred data from the American Angus Association (AAA) included records of 139,602 bulls, 130,944 heifers and 6,656 steers for …
-
Predicting Beef Tenderness Using Ultrasound Technology
… software, collected images and measured: percent intramuscular fat (%FatU), ribeye area (REAU), and fat thickness (FTU). The cattle were then harvested, and carcass ribeye area (REAC), carcass fat thckness (FTC), and calculated yield grade (CYG) were collected 48 hours after harvest to allow for …
-
Effects of weaning age and maternal nutrition on gene expression of longissimus muscle of beef steers
… transcriptional networks regulating intramuscular fat (IMF) deposition in response weaning age and dietary starch level were studied. The longissimus muscle (LM) of beef steers on an early weaning (141 days age) plus high-starch diet (EWS) or a normal weaning (NW, 222 days age) plus …
-
The use of carcass traits as indicators of heifer pregnancy in Angus cattle
… using body condition scoring (BCS) to evaluate fat coverage. While BCS may provide a good estimate of fat coverage, it is subjective to the individual assigning scores and their expertise. Furthermore, body weight and BCS alone are insufficient for assessing true body composition. Genetic …
Page 1 of 2