scholarly journals Influence of electrical stimulation on carcass and meat quality of Kosher and conventionally slaughtered cattle

2015 ◽  
Vol 44 (5) ◽  
pp. 58-63
Author(s):  
B Agbeniga ◽  
EC Webb
Keyword(s):  
Electrical Stimulation ◽  
Meat Quality ◽  
Shear Force ◽  
Quality Attributes ◽  
Cooking Loss ◽  
Temperature Profiles ◽  
Group 12 ◽  
Significant Difference ◽  
Water Holding

In a previous study regarding the effects of Kosher and conventional slaughter techniques on carcass and meat quality of cattle, it was speculated that electrical stimulation may have affected some of the meat qualities. Therefore, the objective of this study was to investigate the effects of electrical stimulation (ES) and non-electrical stimulation (NES) on key carcass and meat quality attributes of cattle slaughtered by Kosher vs. conventional slaughter methods. Carcass pH and temperature profiles over a 24 h post mortem (pm) period, meat shear force and water holding capacity were investigated in feedlot type cattle of comparable weights and breed types. Results showed that the combined effects of slaughter methods did not influence the meat quality attributes, but there were differences within the slaughter groups. The effect of ES on carcass pH lasted longer within the conventionally slaughtered group (12 h), than in the Kosher slaughter group (6 h). Muscle samples from the ES groups for both slaughter methods were more tender. Electrical stimulation also had a significant effect on the cooking loss from Kosher meat, while there was no significant difference in meat from the conventional slaughter methods. The results show that ES influences certain meat and carcass quality attributes of cattle, based on the way cattle were slaughtered.Keywords: Carcass pH, cooking loss, drip loss, electrical stimulation, shear force, slaughter technique

scholarly journals Chemical Composition and Quality Characteristics of Meat in Three One-Humped Camel (Camelus dromedarius) Breeds as Affected by Muscle Type and Post-Mortem Storage Period

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 834 ◽  
Author(s):  
Gamaleldin M. Suliman ◽  
Abdullah N. Alowaimer ◽  
Elsayed O.S. Hussein ◽  
Hatem S. Ali ◽  
Sameh A. Abdelnour ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Meat Quality ◽  
Shear Force ◽  
Storage Period ◽  
Quality Attributes ◽  
Sensory Attributes ◽  
Cooking Loss ◽  
Muscle Type ◽  
And Storage ◽  
Water Holding

The influence of muscle type and postmortem storage period on meat chemical composition and quality attributes of three breeds of camels (Baladi Saudi, Pakistani, and Somali) were investigated in this study. Crude fat and ash content were significantly higher in the Pakistani than in the Baladi Saudi and Somali breeds, except for higher moisture content observed in the Somali breed. The longissimus lumborum (LL) and semimembranosus (SM) muscles had a greater crude protein than the biceps femoris (BF) muscle. Storage period exhibited a significant reduction in pH values and improvement in color components of meat. The Somali breed produced higher cooking loss % and shear force, with a lower water holding capacity than the Baladi Saudi and Pakistani breeds. The LL muscle had better cooking loss %, water holding capacity, and shear force, whereas storage period (7 days) exhibited a significant reduction in the myofibrillar fragmentation index. Baladi Saudi and Pakistani breeds and LL muscle samples presented better meat sensory attributes, while storage period had no significant influence on the overall sensory characters of meat. In conclusion, there were significant differences between the chemical and structural characteristics of the LL, BF, and SM muscle samples among the three breeds of camel. Baladi Saudi and Pakistani had better meat quality traits than the Somali breed. In addition, LL muscles had better nutritional values and meat quality parameters than BF and SM muscles. Improvement in meat quality attributes were achieved with the storage process of 7 days. It is observed that, the Saudi Baladi camels have a merit of low fat content over both Somali and Pakistani camel breeds. It is also concluded that no significant effects were observed between the treatments as a result of storage when sensory attributes were considered. Moreover, breed, muscle and storage period were interacted significantly only with regard to lightness color space and shear force. This is useful knowledge for the meat industry for optimizing processing and storage procedures for various camel muscles.

Carcass traits and meat quality of quails from both sexes and eight distinct strains

2017 ◽  
Vol 57 (10) ◽  
pp. 2141 ◽  
Author(s):  
Ronan P. Gontijo ◽  
Cleube A. Boari ◽  
Aldrin V. Pires ◽  
Martinho A. Silva ◽  
Luíza R. A. Abreu ◽  
...  
Keyword(s):  
Meat Quality ◽  
Shear Force ◽  
Carcass Traits ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Carcass Weight ◽  
Water Holding ◽  
Type Strains ◽  
Meat Type

Our objective was to evaluate carcass traits and meat quality of quails from different strains and both sexes pertaining to three breeding-improvement programs. Quails from seven meat-type strains (UFV1, UFV2, UFV3, EV1, EV2, LF1 and LF2) and from one egg-laying (Japanese quail) strain (LAY) were slaughtered at 35 days of age. A completely randomised 8 (strain) × 2 (sex) factorial design was used for data analysis. Bodyweight, hot carcass weight and breast (musculus pectoralis major and m. pectoralis minor) and legs (thigh and drumstick) weights and their respective yields were determined. Ultimate pH, colour measurements, water-holding capacity, cooking loss and shear force were assessed. No difference in ultimate pH, shear force and hue was observed. The UFV3 strain had the greatest bodyweight at slaughter. The UFV3 strain had the greatest hot carcass weight in both sexes. The heaviest breasts were observed in both sexes of the UFV3 strain and in males of the UFV2 strain. The UFV3 quails had greater leg weight. The hot carcass yields of meat-type strains were greater than that of the LAY strain. The UFV3 and LAY females furnished a greater breast yield than did male quails. For males, the UFV1 strain had a greater yield of breast than that of LAY quails. The LAY quails presented the greatest yields of leg. The LAY quails had the least luminance, and the greatest water-holding capacity, cooking loss, red and yellow intensity, and chroma. In summary, meat obtained from meat-type strains had a greater water-holding capacity, lower cooking loss and greater luminance than that of the LAY strain. In addition, the meat-type strains grew appreciably faster, but the difference in yields of breast and leg meat between meat and layer strains was small. We conclude that meat-type strains, especially the UFV3, are more appropriate for enterprises focussed on meat production.

scholarly journals 83 Tenderness and cooking loss of beef loins

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 27-28 ◽  
Author(s):  
Robin G Coombs ◽  
C R Richardon
Keyword(s):  
Standard Deviation ◽  
Meat Quality ◽  
Shear Force ◽  
Quality Attributes ◽  
Grocery Store ◽  
Cooking Loss ◽  
Longissimus Muscle ◽  
Internal Temperature ◽  
Regional Area ◽  
Resting Period

Abstract The focus of this study involved measuring two variables of meat quality: tenderness and cooking loss. Experiments were conducted on a premium cut of meat – the loin. The loin contains the Longissimus muscle, with pieces of the Iliocostalis and Spinalis dorsi muscles. The Longissimus muscle was cored for tenderness. Two sources of loins were evaluated: Akaushi breed, and from a commercial grocery store. Meat used consisted of Akaushi loins from 6 different animals (prime grade) and one select grade loin (control). The protocol involved dividing each loin into 6 (907-1134g) roasts, cooking at 104.40 C (to internal temperature of 73.90 C), measuring by weight the cooking loss of the roasts after a 30-minute resting period, and determining tenderness by Warner-Bratzler Shear Force (WBSF) (after overnight storage in a cooler). Cores were taken at 6 different locations of the roast, over the same regional area for WBSF determinations. The WBSF coring instrument used was provided. Tenderness of each loin was measured in 36 cores (n = 36). In overall tenderness, the control loin ranked third out of the seven loins and had the least amount of cooking loss. No differences were found in tenderness (P > 0.05). However, a difference was found in average cooking loss 181.44g ± 0.03 (control); 254.01g ± 0.03 (Akaushi) (P < 0.05). When observing tenderness consistency, the control loin had a somewhat larger standard deviation (1.38 vs 0.756) than the Akaushi loins.Loins used in this study showed variation in cooking loss, tenderness, and consistency between a commercial grocery store source and the Akaushi beef source. These data indicates that quality attributes of beef loins used in this study may be different in ways not related to grade.

scholarly journals Determination of the alterations in quality parameters and consumer preference of dry-aged beef based on different periods of ageing using a purposive incubator

2021 ◽  
Vol 72 (1) ◽  
pp. 2669
Author(s):  
H USTUNER ◽  
S ARDICLI ◽  
O ARSLAN
Keyword(s):  
Shear Force ◽  
Ageing Time ◽  
Quality Parameters ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Quality Traits ◽  
Beef Quality ◽  
Significant Difference ◽  
Meat Colour ◽  
Water Holding

The aim of this study was to evaluate beef quality traits including pH, water holding capacity, cooking loss, meat colour, and Warner-Bratzler shear force in dry-aged beef and to determine the most favorable ageing time based on beef quality parameters and consumer acceptability. In this respect, longissimus dorsi samples were obtained from Simmental bulls and stored for an ageing period up to 21-days, and thus, the beef quality evaluation was performed at 0-day, 7-day, 14-day, and 21-day of the experimental period. Results revealed that the lowest shear force value was observed in beef samples on day-14 whereas the lowest pH value was determined in samples on day 21. Moreover, water holding capacity and beef colour values were significantly differentiated based on dry-ageing (P<0.05). In sensory panel evaluation, a significant difference is found only in meat colour rating (P<0.05). There was no significant difference between ageing periods and cooking loss. The most important technical point is that increasing dry-ageing time from 14 to 21 days did not desirably affect quality traits and sensory scores. Hence, dry-ageing for 14 days seemed to be the most economically efficient application. Taken altogether, the present results suggest that the potential for use of dry-ageing should be considered as an alternative method to produce high-quality beef with respect to the optimum ageing process.

Effects of a non-synonymous CBG gene single nucleotide polymorphism (SNP) on meat-quality traits in Berkshire pigs

2016 ◽  
Vol 96 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Seul Gi Kwon ◽  
Jung Hye Hwang ◽  
Da Hye Park ◽  
Tae Wan Kim ◽  
Deok Gyeong Kang ◽  
...  
Keyword(s):  
Moisture Content ◽  
Meat Quality ◽  
Shear Force ◽  
Cooking Loss ◽  
Quality Traits ◽  
Post Mortem ◽  
Single Nucleotide ◽  
Meat Quality Traits ◽  
Berkshire Pigs ◽  
Water Holding

Corticosteroid-binding globulin (CBG) is a plasma transport protein that has glucocorticoid-binding activity. In the present study, we identified CBG gene expression in several tissues of four pig breeds: Berkshire, Duroc, Landrace, and Yorkshire. Expression of CBG mRNA was detected in the liver of all four breeds, and was the highest in Berkshire pigs. We also found single nucleotide polymorphisms (SNPs) in the CBG gene from Berkshire pigs, including SNP c.919G>A, which corresponds to 307G>R. We analyzed the relationships between this CBG variant and various meat-quality traits. The SNP was significantly associated with backfat thickness, post-mortem pH24h, meat color [CIE a* (redness), CIE b* (yellowness)], water-holding capacity, fat content, moisture content, protein content, cooking loss, and shear force. However, the effects differed by gender: the values were significantly associated with almost all traits in gilts, whereas only cooking loss and shear force were shown significantly in barrows. The variant G allele was associated with decreases in backfat thickness, post-mortem pH24h, CIE a*, fat content, and cooking loss, but with increases in CIE b*, water-holding capacity, moisture content, protein content, and shear force. Because the general correlation between meat-quality traits were not validated in the present study, we suggest that certain SNP might be used in the restrictive application to distinguish meat-quality traits.

scholarly journals Effect of Transportation and Low Voltage Electrical Stimulation on Meat Quality Characteristics of Omani Sheep

2010 ◽  
Vol 15 ◽  
pp. 1
Author(s):  
Isam T. Kadim ◽  
Osman Mahgoub ◽  
Waleed Al-Marzooqi ◽  
Samera Khalaf
Keyword(s):  
Electrical Stimulation ◽  
Meat Quality ◽  
Shear Force ◽  
Sarcomere Length ◽  
Low Voltage ◽  
Quality Characteristics ◽  
Cooking Loss ◽  
Longissimus Dorsi ◽  
Road Transportation ◽  
Fragmentation Index

The aim of this study was to determine the effects of road transportation during the hot season (36 oC) and low voltage electrical stimulation on meat quality characteristics of Omani sheep. Twenty intact male sheep (1-year old) were divided into two equal groups: 3 hrs transported or non-transported. The transported group was transferred to the slaughterhouse the day of slaughter in an open truck covering a distance of approximately 300 km. The non-transported group was kept in a lairage of a commercial slaughterhouse with ad libitum feed and water for 3 days prior to slaughter. Blood samples were collected from the animals before loading and prior to slaughter in order to assess their physiological response to stress in terms of hormonal levels. Fifty percent of the carcasses from each group were randomly assigned to low voltage (90 V) at 20 min postmortem. Muscle ultimate pH, expressed juice, cooking loss percentage, WB-shear force value, sarcomere length, myofibrillar fragmentation index and colour L*, a*, b* were measured on samples from Longissimus dorsi muscles collected 24 hrs postmortem at 2-4 oC. The transported sheep had significantly (P<0.05) higher cortisol adrenaline, nor-adrenaline, and dopamine levels than the non-transported group. Muscles from electrically-stimulated carcasses had significantly (P<0.05) lower pH values, longer sarcomere length, lower shear force value, higher expressed juice, myofibrillar fragmentation index and L* values than those from non-stimulated ones. Transportation significantly influenced meat quality characteristics of the Longissimus dorsi muscle. Muscle ultimate pH and shear force values were significantly higher, while CIE L*, a*, b*, expressed juice and cooking loss were lower in transported than non-transported sheep. This study indicated that pre-slaughter transportation at high ambient temperatures can cause noticeable changes in muscle physiology in sheep. Nevertheless, meat quality of transported sheep can be improved by electrical stimulation post-slaughter. 

scholarly journals The effect of slaughter age and aging period on water-holding capacity and tenderness of mutton

2020 ◽  
Vol 90 (6) ◽  
pp. 611-616
Author(s):  
Ana Kaić ◽  
◽  
Ivan Širić ◽  
Silvester Žgur ◽  
Gordan Šubara ◽  
...  
Keyword(s):  
Shear Force ◽  
Sensory Quality ◽  
Water Holding Capacity ◽  
Drip Loss ◽  
Aging Period ◽  
Significant Difference ◽  
Slaughter Age ◽  
Water Holding

Mutton samples (m. longissimus thoracis et lumborum; LL) originating from 30 Istrian ewes were used to determine EZ drip loss (DL), thaw loss (TL), cooking loss (CL), and Warner-Bratzler shear force (WBSF) in relation to age at slaughter and different post mortem aging periods (1, 7, and 14 days). DL was measured according to the EZ method after storage periods of 24 and 48 h. Determination of TL, CL, and WBSF was performed for samples aged prior to freezing for 1, 7, and 14 days. A significantly lower TL (P<0.05) was observed in the mutton samples that aged for 1 day (7.76%) prior to freezing compared to the mutton samples that aged for 7 days (9.91%) and 14 days (9.32%) prior to freezing. The WBSF revealed significant differences between the aging periods (P<0.05), indicating that mutton aged 7 (33.92 N) and 14 (28.23 N) days showed greater tenderness than mutton with a shorter aging period (43.89 N). Considering that there was no significant difference between mutton aged for 7 and 14 days in water-holding capacity and shear force, there is no reasonable reason for aging mutton longer than 7 days. Therefore, further research into shorter aging periods, the sensory quality of mutton, and its acceptability by consumers is needed.

scholarly journals Quality of aged shoulder from lambs fed with different oldman saltbush hay levels (Atriplex nummularia)

2014 ◽  
Vol 44 (12) ◽  
pp. 2252-2257
Author(s):  
Tharcilla Isabella Rodrigues Costa Alvarenga ◽  
Hirasilva Borba ◽  
Greicy Mitzi Bezerra Moreno ◽  
Gherman Garcia Leal de Araújo ◽  
Juliana Lolli Malagoli de Mello ◽  
...  
Keyword(s):  
Shear Force ◽  
Ageing Time ◽  
Physical Characteristics ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Lamb Meat ◽  
Atriplex Nummularia ◽  
Water Holding ◽  
Different Levels

This study assessed the effects of different levels of oldman saltbush hay and ageing time on the physical characteristics of Santa Inês lamb meat. Sixty shoulders from 32 male lambs fed with 30, 40, 50 or 60% oldman saltbush hay for 60 days were vacuum-packaged and stored in a refrigerator at 0 ± 1°C for 0, 7 or 14 days of ageing. The shear force, cooking loss and water holding capacity were 3.06kgf cm-2, 37.28% and 76.71%, respectively, and there were no significant changed by studied factors (P>0.05)

scholarly journals The Potential Use of Layer Litter in Awassi Lamb Diet: Its Effects on Carcass Characteristics and Meat Quality

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 782
Author(s):  
Belal Obeidat ◽  
Mohammad Mayyas ◽  
Abdullah Abdullah ◽  
Mofleh Awawdeh ◽  
Rasha Qudsieh ◽  
...  
Keyword(s):  
Meat Quality ◽  
Randomized Study ◽  
Subcutaneous Fat ◽  
Fat Content ◽  
Cooking Loss ◽  
Muscle Weight ◽  
Carcass Parameters ◽  
Intermuscular Fat ◽  
Water Holding

Carcass parameters and meat quality in lambs that consumed diets having layer hen litter (LL) were evaluated in a complete randomized study. Forty-two lambs were allocated equally (14 lambs/treatment diet) into one of three iso-nitrogenous diets for 75 days. To partially replace soybean meal and barley, LL was given at 0 (LL0), 150 (LL150), or 300 g/kg (LL300) of dietary dry matter (DM). At the termination of the trial, the characteristics of carcasses (hot and cold carcass weight, dressing percentage, and carcass cuts) and meat quality (Musculus longissimus linear dimensions, ultimate pH, cooking loss, water holding capacity (WHC), shear force (SF), color coordinates) were measured after slaughtering all lambs. Longissimus muscle weight was greatest (p < 0.05) for the LL150. For the dissected loin, intermuscular fat content was lowest for the LL0 diet. However, subcutaneous fat content was lower (p < 0.05) in the LL300 diet than LL0 and LL150 diets. Rib fat depth and Musculus longissimus area were greater (p < 0.05) for LL150 than L0. No differences were found in meat pH or color parameters among treatments but WHC and SF were lower in L0 lambs than in lambs fed LL containing diets. Cooking loss was greater for the LL300 diet than the LL0 diet. In summary, quality of meat and carcasses data indicate the possibility of inclusion of LL up to 300 g/kg DM to growing Awassi lambs.

scholarly journals Evaluation of meat quality of weaned rabbits administered different concentrations of probiotic strain (Saccharomyces boulardii)

2018 ◽  
Vol 34 (1) ◽  
pp. 95-105
Author(s):  
Elisha Jiya ◽  
Chiemela Chinma ◽  
Ahmed Sanusi
Keyword(s):  
Cell Count ◽  
Meat Quality ◽  
Probiotic Strain ◽  
Saccharomyces Boulardii ◽  
Overall Acceptability ◽  
Significant Difference ◽  
Rabbit Meat ◽  
Sensory Parameters ◽  
Water Holding

The meat quality and sensory properties of weaned rabbits administered different concentrations/cell count of probiotic Saccharomyces boulardii (flora norm) were investigated. A total of 36 mixed breeds of rabbits were randomly divided to four treatments with three replicates and three rabbits per replicate. The weaned rabbits were fed the same diet. Treatments T1, T2, T3 and T4 had zero (0) concentration/cell count of probiotic, 1ml each of 160 x106 it is%1.6 x 108 cfu/ml concentration of probiotic, 1 ml each of 80 x106cfu/ml =8.0 x 107 cfu/ml of probiotic and 1 ml each of 40 x 106cfu/ml concentration of probiotic, respectively. The administration of the probiotic was done once every 14 days. Results obtained showed that there was no significant difference in moisture and crude protein content of meat from rabbits while ether extract differed significantly (P<0.05). The physical properties, cooking yield, cooking loss and water holding capacity were not significantly (P>0.05) influenced by concentrations of probiotics while pH and thermal shortening were significantly (P<0.05) influenced. All the sensory parameters measured were significantly (P<0.05) different. It was found that oral administration of probiotic Saccharomyces boulardii (flora norm) at 4 mg/ml 80 x 106cfu/ml concentration improved meat qualities and overall acceptability of rabbit meat.

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