scholarly journals Effect of marketable ages on meat quality through fiber characteristics in goose

2020 ◽  
Author(s):  
Kaiqi Weng ◽  
Weiran Huo ◽  
Tiantian Gu ◽  
Qiang Bao ◽  
Li-e Hou ◽  
...  
Keyword(s):  
Protein Content ◽  
Meat Quality ◽  
Muscle Fiber ◽  
Fiber Type ◽  
Intramuscular Fat ◽  
Breast Muscle ◽  
Cross Sectional ◽  
Leg Muscle ◽  
Slow Twitch Fibers ◽  
Fast Twitch

Abstract Background: Goose meat is more and more popular among consumers because of its good quality. The fiber characteristics, as a key determinant factor, contributing to meat quality has been well demonstrated, and the marketable ages are also closely related to meat quality in livestock and chicken. However, little is known about the effect of different marketable ages on the meat quality through fiber characteristics in goose. Results: Here, 1-day, 28-day and three market-age old (70, 90 & 120 days) Yangzhou geese were selected and their fiber characteristics were investigated. The results showed that only fast-twitch fibers were observed in the breast muscle irrespective of the ages, while little slow-twitch fibers could be identified in leg muscle in three marketable ages, especially in gastrocnemius and extensor digitorum longus. As for the fiber diameter, a rapid upward trend was observed in breast muscle from 70 days to 90 days, and the corresponding values were 19.88 to 26.27μm, respectively, and it remained stable 90d thereafter. While the diameter and cross-sectional area of muscle fiber in leg muscle increased with ages. In addition, the proximate composition and physical properties was measured at different ages. 120-day-old geese had richer intramuscular fat and protein content both in breast and leg meat, as well as lower moisture content among three marketable ages. The higher lightness and pressing loss and the lower redness and shear force was observed in the breast and leg meat of 70-day-old geese compared with the 90 and 120-day-old geese. Conclusions: Taken together, although longer marketable age did not affect muscle fiber type in geese, it resulted in a thicker muscle fiber area, richer intramuscular fat and protein content, redder and chewier meat. As a result, the reasonable marketable age should be taken into account to improve the meat quality in the goose production.

Slow to fast alterations in skeletal muscle fibers caused by clenbuterol, a beta 2-receptor agonist

1988 ◽  
Vol 254 (6) ◽  
pp. E726-E732 ◽  
Author(s):  
R. J. Zeman ◽  
R. Ludemann ◽  
T. G. Easton ◽  
J. D. Etlinger
Keyword(s):  
Muscle Fiber ◽  
Receptor Agonist ◽  
Fiber Type ◽  
Fiber Types ◽  
Cross Sectional ◽  
Type Composition ◽  
Slow Twitch ◽  
Beta 2 ◽  
Slow Twitch Fibers ◽  
Fast Twitch

Chronic treatment of rats with clenbuterol, a beta 2-receptor agonist (8–12 wk), caused hypertrophy of histochemically identified fast- but not slow-twitch fibers within the soleus, while the mean areas of both fiber types were increased in the extensor digitorum longus (EDL). In contrast, treatment with the beta 2-receptor antagonist, butoxamine, reduced fast-twitch fiber size in both muscles. In the solei and to a lesser extent in the EDLs, the ratio of the number of fast- to slow-twitch fibers was increased by clenbuterol, while the opposite was observed with butoxamine. The muscle fiber hypertrophy observed in the EDL was accompanied by parallel increases in maximal tetanic tension and muscle cross-sectional area, while in the solei, progressive increases in rates of force development and relaxation toward values typical of fast-twitch muscles were also observed. Our results suggest a role of beta 2-receptors in regulating muscle fiber type composition as well as growth.

scholarly journals lncRNA-Six1 Is a Target of miR-1611 that Functions as a ceRNA to Regulate Six1 Protein Expression and Fiber Type Switching in Chicken Myogenesis

Cells ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 243 ◽  
Author(s):  
Manting Ma ◽  
Bolin Cai ◽  
Liang Jiang ◽  
Bahareldin Ali Abdalla ◽  
Zhenhui Li ◽  
...  
Keyword(s):  
Fiber Type ◽  
Muscle Fibers ◽  
Muscle Fiber Types ◽  
Fiber Types ◽  
Proliferation And Differentiation ◽  
Slow Twitch Muscle ◽  
Fast Twitch Muscle ◽  
Slow Twitch ◽  
Slow Twitch Fibers ◽  
Fast Twitch

Emerging studies indicate important roles for non-coding RNAs (ncRNAs) as essential regulators in myogenesis, but relatively less is known about their function. In our previous study, we found that lncRNA-Six1 can regulate Six1 in cis to participate in myogenesis. Here, we studied a microRNA (miRNA) that is specifically expressed in chickens (miR-1611). Interestingly, miR-1611 was found to contain potential binding sites for both lncRNA-Six1 and Six1, and it can interact with lncRNA-Six1 to regulate Six1 expression. Overexpression of miR-1611 represses the proliferation and differentiation of myoblasts. Moreover, miR-1611 is highly expressed in slow-twitch fibers, and it drives the transformation of fast-twitch muscle fibers to slow-twitch muscle fibers. Together, these data demonstrate that miR-1611 can mediate the regulation of Six1 by lncRNA-Six1, thereby affecting proliferation and differentiation of myoblasts and transformation of muscle fiber types.

Blood flow to different skeletal muscle fiber types during contraction

1983 ◽  
Vol 245 (2) ◽  
pp. H265-H275 ◽  
Author(s):  
B. G. Mackie ◽  
R. L. Terjung
Keyword(s):  
Skeletal Muscle ◽  
Blood Flow ◽  
Muscle Fiber ◽  
Fiber Type ◽  
Oxidative Capacity ◽  
Skeletal Muscle Fiber ◽  
Muscle Fiber Types ◽  
Fiber Types ◽  
Blood Flows ◽  
Fast Twitch

Blood flow to fast-twitch red (FTR), fast-twitch white (FTW), and slow-twitch red (STR) muscle fiber sections of the gastrocnemius-plantaris-soleus muscle group was determined using 15 +/- 3-microns microspheres during in situ stimulation in pentobarbital-anesthetized rats. Steady-state blood flows were assessed during the 10th min of contraction using twitch (0.1, 0.5, 1, 3, and 5 Hz) and tetanic (7.5, 15, 30, 60, and 120/min) stimulation conditions. In addition, an earlier blood flow determination was begun at 3 min (twitch series) or at 30 s (tetanic series) of stimulation. Blood flow was highest in the FTR (220-240 ml X min-1 X 100 g-1), intermediate in the STR (140), and lowest in the FTW (70-80) section during tetanic contraction conditions estimated to coincide with the peak aerobic function of each fiber type. These blood flows are fairly proportional to the differences in oxidative capacity among fiber types. Further, their absolute values are similar to those predicted from the relationship between blood flow and oxidative capacity found by others for dog and cat muscles. During low-frequency contraction conditions, initial blood flow to the FTR and STR sections were excessively high and not dependent on contraction frequency. However, blood flows subsequently decreased to values in keeping with the relative energy demands. In contrast, FTW muscle did not exhibit this time-dependent relative hyperemia. Thus, besides the obvious quantitative differences between skeletal muscle fiber types, there are qualitative differences in blood flow response during contractions. Our findings establish that, based on fiber type composition, a heterogeneity in blood flow distribution can occur within a whole muscle during contraction.

scholarly journals Influence of Maternal Corn Supplementation of Beef Cattle on Muscle Fiber Type and Meat Quality of their Offspring

2019 ◽  
Vol 3 (2) ◽  
pp. 158-159
Author(s):  
D. Maharjan ◽  
A. Rodas-González ◽  
A. R. Tanner ◽  
V. C. Kennedy ◽  
J. D. Kirsch ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Meat Quality ◽  
Muscle Fiber ◽  
Fiber Type ◽  
Muscle Fiber Type

Time course of changes in capillarization in hypertrophied rat plantaris muscle

1998 ◽  
Vol 84 (3) ◽  
pp. 902-907 ◽  
Author(s):  
Michael J. Plyley ◽  
Barbara J. Olmstead ◽  
Earl G. Noble
Keyword(s):  
Muscle Fiber ◽  
Video Analysis ◽  
Time Course ◽  
Fiber Type ◽  
Common Factor ◽  
Sectional Area ◽  
Plantaris Muscle ◽  
Cross Sectional ◽  
Tightly Coupled ◽  
Analysis System

The time course of angiogenesis during hypertrophy of the rat plantaris muscle was studied by using a unilateral, synergistic ablation model. Animals ( n = 6/group) were euthanized 2, 5, 7, 15, 21, and 30 days postmyectomy. Sections from both the hypertrophied and contralateral muscles were simultaneously stained for capillaries and muscle fiber type. Mean fiber cross-sectional area (FA) and various indexes of capillarity were determined by using a video analysis system. The capillary supply to individual fibers, assessed as the FA supplied per capillary contact, remained unchanged until day 21 (compared with day 2) and exhibited a significant increase at day 30. Analysis of the time course of capillary development on the basis of the number of capillary contacts per fiber, and of hypertrophy on the basis of FA, yielded half-lives of 10.1 and 11.2 days, respectively. It was concluded that angiogenesis during muscle overload is tightly coupled to the changes in FA, which could suggest that the two processes are initiated and/or driven by some common factor(s).

Ferulic acid regulates muscle fiber type formation through the Sirt1/AMPK signaling pathway

2019 ◽  
Vol 10 (1) ◽  
pp. 259-265 ◽  
Author(s):  
Xiaoling Chen ◽  
Yafei Guo ◽  
Gang Jia ◽  
Hua Zhao ◽  
Guangmang Liu ◽  
...  
Keyword(s):  
Ferulic Acid ◽  
Signaling Pathway ◽  
Muscle Fiber ◽  
Fiber Type ◽  
Muscle Fiber Type ◽  
Ampk Signaling ◽  
Slow Twitch ◽  
Fast Twitch

Ferulic acid promotes slow-twitch and inhibits fast-twitch myofiber formation via Sirt1/AMPK.

Metabolic variation among alpha-motoneurons innervating different muscle-fiber types. I. Oxidative enzyme activity

1984 ◽  
Vol 51 (3) ◽  
pp. 529-537 ◽  
Author(s):  
D. W. Sickles ◽  
T. G. Oblak
Keyword(s):  
Optical Density ◽  
Muscle Fiber ◽  
Enzyme Activities ◽  
Tibialis Anterior ◽  
Fiber Type ◽  
Ventral Horn ◽  
Oxidative Enzyme ◽  
Muscle Fiber Types ◽  
Fiber Types ◽  
Fast Twitch

We have examined the oxidative metabolism of rat alpha-motoneurons innervating muscles composed predominantly of one muscle-fiber type. Intramuscular injections of horseradish peroxidase (HRP) into the tensor fasciae latae (TFL) (approximately 94% fast-twitch glycolytic fibers, FG), tibialis anterior (TA) (approximately 66% fast-twitch oxidative-glycolytic, FOG; 32% FG), and soleus (SOL) (approximately 84% slow-twitch oxidative, SO) muscles permitted identification of motoneurons innervating these muscles. gamma-Motoneurons (less than 25-micron average soma diameter) were eliminated from the sampling. The alpha-motoneurons innervating the TFL were considered as FG, those innervating the tibialis anterior as FOG, and those of the soleus as SO. Alternate 5-micron serial cryostat sections were processed for HRP and nicotinamide adenine dinucleotide-diapharase (NADH-D) (oxidative enzyme) activities. Controls were included to assure reliability of reaction product quantitation. Motoneuron pools of each muscle were characterized by their shape and location within the ventral horn. Cells identified on HRP sections as innervating each of the muscles were located on sections processed for NADH-D activity. The optical density of motoneurons in sections processed for NADH-D activity was measured with a Zeiss Zonax MPM 03 microdensitometer. The mean relative NADH-D activities (optical density) of alpha-motoneurons innervating the TFL (FG), TA (FOG), and SOL(SO) muscles were 0.261, 0.305, and 0.447, respectively. Although some overlap in distribution of enzyme activities was observed, statistical analysis indicated significant differences between the NADH-D activities of each type of alpha-motoneuron. This is the first report of any metabolic difference in alpha-motoneurons belonging to different motor-unit types.(ABSTRACT TRUNCATED AT 250 WORDS)

Muscle fiber type, postmortem metabolism, and meat quality of Nellore cattle with different post-weaning growth potential

2020 ◽  
pp. 104348
Author(s):  
Mariane Beline ◽  
Juan Fernando Morales Gómez ◽  
Daniel Silva Antonelo ◽  
Juliana Silva ◽  
Vicente Luiz Macedo Buarque ◽  
...  
Keyword(s):  
Meat Quality ◽  
Muscle Fiber ◽  
Fiber Type ◽  
Growth Potential ◽  
Muscle Fiber Type ◽  
Nellore Cattle
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