scholarly journals Association of Single Nucleotide Polymorphisms in the FABP4 Gene with Carcass Characteristics and Meat Quality in Holstein Bulls

2017 ◽  
Vol 17 (1) ◽  
pp. 117-130 ◽  
Author(s):  
Sena Ardicli ◽  
Hale Samli ◽  
Fazli Alpay ◽  
Deniz Dincel ◽  
Bahadir Soyudal ◽  
...  
Keyword(s):  
Meat Quality ◽  
Interaction Analysis ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Least Square ◽  
Carcass Weight ◽  
Marmara Region ◽  
Nucleotide Polymorphisms ◽  
Fatty Acid Binding ◽  
Holstein Bulls

Abstract The aim of this study was to characterize the bovine fatty acid binding protein (FABP4) gene 3691G>A and 2834C>G polymorphisms and to evaluate interaction effects on the live weight, carcass characteristics and meat quality of Holstein bulls in the South Marmara region of Turkey. A total of 400 Holstein bulls grown on a private farm and slaughtered at 14-21 months of age, were randomly selected for use in this study. Initially, genotyping was performed by PCR-RFLP method and statistical analysis was carried out using least square methods of the GLM procedure. A SNP located in intron 1 (2834C>G) was associated with desirable increases in live weight, hot carcass weight and chilled carcass weight, and a SNP located in exon 3 (3691G>A) was associated with significant increases in marbling scores and first compressive stress point of the longissimus dorsi muscle (P<0.05). The interaction analysis of the 3691G>A and the 2834C>G polymorphisms revealed significant effects for hot carcass weight, chilled carcass weight and backfat thickness (P<0.05). There were no significant associations between the SNPs and carcass measurements. Results indicated that the FABP4 3691G>A and 2834C>G polymorphisms and the 3691G>A and 2834C>G interactions can be used as selection parameters in breeding programmes to improve meat yield and carcass characteristics.

scholarly journals Individual and combined effects of <i>CAPN1</i>, <i>CAST</i>, <i>LEP</i> and <i>GHR</i> gene polymorphisms on carcass characteristics and meat quality in Holstein bulls

2017 ◽  
Vol 60 (3) ◽  
pp. 303-313 ◽  
Author(s):  
Sena Ardicli ◽  
Hale Samli ◽  
Deniz Dincel ◽  
Bahadir Soyudal ◽  
Faruk Balci
Keyword(s):  
Meat Quality ◽  
Growth Hormone Receptor ◽  
Carcass Characteristics ◽  
Live Weight ◽  
B Value ◽  
Nucleotide Polymorphisms ◽  
Marbling Score ◽  
Yield And Quality ◽  
Pcr Rflp ◽  
Holstein Bulls

Abstract. The objective of this study was to determine the association of single nucleotide polymorphisms (SNPs) with carcass characteristics and meat quality traits in selected candidate genes in Holstein bulls. Five SNPs in four genes, i.e. calpain 1 (CAPN1), calpastatin (CAST), leptin (LEP) and growth hormone receptor (GHR), were genotyped in 400 purebred bulls using PCR-RFLP. Statistically significant associations were as follows: CAPN1 G316A with live weight, carcass weight, back fat thickness, m. longissimus thoracis et lumborum area and carcass measurements; CAPN1 V530I with pH and L∗; CAST S20T with live weight, inner chest depth and b∗ value; and GHR with ph, a∗ and h∗. In addition, significant genotypic interactions were observed for dressing percentage (LEP A80V  ×  CAST S20T), pH (CAPN1 V530I  ×  GHR S555G and LEP A80V  ×  GHR S555G) and rump width (CAPN1 V530I  ×  CAST S20T). There was no association between the LEP A80V marker and any of the traits evaluated, nor was there any association of the tested SNPs with chest width, C∗ and marbling score. The present results could therefore be indicative for future studies on meat yield and quality.

Effects of the percentage of Texel or Rouge de ľOuest genes in lambs on carcass characteristics and meat quality

1999 ◽  
Vol 69 (1) ◽  
pp. 81-92 ◽  
Author(s):  
A. F. Carson ◽  
B. W. Moss ◽  
R. W. J. Steen ◽  
D. J. Kilpatrick
Keyword(s):  
Meat Quality ◽  
Subcutaneous Fat ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Fat Content ◽  
Carcass Weight ◽  
Ewe Lambs ◽  
Bone Content ◽  
Intermuscular Fat ◽  
Ram Lambs

AbstractThis study investigated the effects of the percentage of Texel or Rouge de l’Ouest (Rouge) genes in lambs (0, 50, 75 or 100%; the remainder being Greyface (Border Leicester × Scottish Blackface)) on lamb carcass characteristics and meat quality. Ewe lambs were slaughtered at 34, 40, 46 and 52 kg and ram lambs were slaughtered at 40, 46, 52 and 58 kg live weight. Dressing proportion increased (P < 0·001) by 0·53 and 0·27 g carcass weight per kg live weight for each 1% increase in Texel or Rouge genes respectively. Carcass conformation classification increased (P < 0·001) by 0·016 and 0·007 units (on a five-point scale) for each 1% increase in Texel or Rouge genes respectively. Carcass fat depth measures were reduced by Texel and Rouge genes such that at a constant fat depth end point, carcass weight could be increased by 0·029 and 0·023 kg for each 1% increase in Texel or Rouge genes. Carcass lean content increased (P < 0·001) by 0·99 and 0·27 g/kg for each 1% increase in Texel or Rouge genes. Subcutaneous fat content was reduced (P < 0·001) by 0·36 and 0·29 g/kg for each 1% increase in Texel or Rouge genes. Intermuscular fat content was reduced (P < 0·01) by 0·38 g/kg per 1% increase in Texel genes, whereas Rouge genes had no effect. Similarly, bone content was reduced (P < 0·01) by Texel genes only (0·31 g/kg per 1% increase in Texel genes). Warner-Bratzler shear force values showed a quadratic effect with increasing Texel and Rouge genes, with an initial decrease from 0 to 50% followed by an increase to 100%. Cooking loss increased (P = 0·05) as the percentage of Rouge genes in lambs increased. Increasing the percentage of Texel or Rouge genes significantly increased L* values (P < 0·01 and P < 0·05 respectively), b* values (P = 0·05 and P< 0·05 respectively) and H° values (P < 0·001).

scholarly journals Effects of different energy source diets, as corn substitutes, on carcass characteristics and meat quality of feedlot lambs

2021 ◽  
Vol 53 (2) ◽  
pp. 243-251
Author(s):  
Leticia Jalloul Guimarães ◽  
Isabella Guartieri da Silva ◽  
Ana Claudia Ambiel ◽  
Fabiola Cristine de Almeida Rego ◽  
Caliê Castilho ◽  
...  
Keyword(s):  
Meat Quality ◽  
Rice Bran ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Weight ◽  
Soybean Hulls ◽  
Citrus Pulp ◽  
Ram Lambs ◽  
Dietary Treatments

This study evaluated the effects of different energy sources, as corn substitutes, on the carcass characteristics and meat quality of lambs. Twenty-four intact ram lambs were identified, weighed, and assigned to one of four dietary treatments: corn, citrus pulp, rice bran, and soybean hulls. The ram lambs were confined in feedlots, and when they reached 30 kg of live weight, they were slaughtered. A  completelyrandomized design with different replicates was used for the analysis, along with the Tukey-5% test. For hot and cold carcass weight, rice bran produced lower values than the other dietary treatments. For the red color content of the meat, citrus pulp presented superior values when compared to corn, whereas meat and fat color, loin eye area, and objective tenderness did not differ between treatments. Different energetic sources used to replace corn in ram lambs finishing diets did not affect the proximate composition and quality of the meat. Highlights:  • Addition of rice bran to the lambs' diet resulted in lower hot and cold carcass weight.• Animals fed soybean hulls presented the highest carcass compactness index values.• Rice bran extended the feedlot period of lambs in 59.33 days, been longer than the others energies sources.• Corn, rice bran, citrus pulp and soybean hulls did not change the quality of meat but the inclusion of rice bran should be carefully evaluated.

scholarly journals Effect of breed and diet on carcass parameters and meat quality of spent hens

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Márcio Vargas-Ramella ◽  
Mirian Pateiro ◽  
Diego Rois ◽  
Anisia Arias ◽  
José Ramón Justo ◽  
...  
Keyword(s):  
Meat Quality ◽  
Meat Products ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Quality Parameters ◽  
Carcass Weight ◽  
Spent Hen ◽  
Laying Performance ◽  
Carcass Parameters

Abstract Two spent hen breeds (Mos and Isa Brown) fed with three different diets [commercial feeding (CF); corn, pea, and triticale (CPT); and corn and wheat (CW)] were studied to assess their laying performance, carcass characteristics, and meat quality parameters (breast and drumstick). A total of 48 hens reared in a traditional free-range system were used. Birds were slaughtered at 72 weeks of age after the moulting in an accredited abattoir, and measurements (for each bird) of carcass and meat started at 24h post-mortem. The results demonstrated a breed and diet effect (P < 0.05) on laying performance, carcass, and meat quality. The Mos breed showed lower laying performance, higher live weight (P < 0.001), carcass weight (P < 0.001), dressing percentage (P < 0.001), and carcass fat (P < 0.001) than Isa Brown. The breed also affected physicochemical parameters of drumstick and breast (P < 0.05). Concerning the diet effect, spent hens fed with commercial feeding shown heavier live weight (P <0.01) and carcass weight (P <0.01). Diet significantly affected most of meat quality parameters, being CPT the formulation that most affected (P < 0.05) drumstick composition, while in the breast was CF (P <0.001). Significant (P ≤ 0.005) effect in breast colour, cooking loss and hardness were observed in animals fed with alternative diets to CF. Regarding nutritional quality, no breed or diet effect (P < 0.05) was observed in MUFAs, PUFAs and n-6 contents of meat. Overall, both breeds showed a high protein and low-fat content in the breast, showing these hens as an opportunity for the development of meat products as well as an economic purpose for spent hens that reach the end of their productive lives.

Effects of genotype and dietary forage to concentrate ratio during the finishing period on carcass characteristics and meat quality of lambs from hill sheep systems

2001 ◽  
Vol 137 (2) ◽  
pp. 205-220 ◽  
Author(s):  
A. F. CARSON ◽  
B. W. MOSS ◽  
L. E. R. DAWSON ◽  
D. J. KILPATRICK
Keyword(s):  
Meat Quality ◽  
Dry Matter ◽  
Carcass Characteristics ◽  
Live Weight ◽  
The Other ◽  
Grass Silage ◽  
Classification Score ◽  
Forage:Concentrate Ratio ◽  
Matter Basis

The study investigated the effects of lamb genotype produced from hill flocks on feed efficiency, carcass characteristics and meat quality in animals finished on either a high forage:concentrate ratio diet (HFC) or a low forage:concentrate ratio diet (LFC). Purebred Scottish Blackface (BXB) lambs were compared with Blue-Faced Leicester×Scottish Blackface (BLXB) and Texel×Scottish Blackface (TXB) lambs. Purebred Cheviot (CXC), Suffolk×Cheviot (SXC) and Texel×Cheviot (TXC) lambs were also investigated. Lambs on the LFC diet were offered grass silage and concentrates mixed in the proportion of 0·80 silage and 0·20 concentrates on a dry matter basis. The LFC diet consisted of 0·20 grass silage and 0·80 concentrates on a dry matter basis. Representative lambs were slaughtered at the start of the experiment and on reaching 38 and 46 kg live weight. Averaged over the two slaughter weights, within the Blackface cross lambs, BXB had a lower liveweight gain (P < 0·01) than either BLXB or TXB (138, 207 and 203 (S.E. 11·1) g/day, respectively). Within the Cheviot cross lambs, CXC had a lower liveweight gain (P < 0·05) than SXC (188 v. 220 (S.E. 11·1) g/day), while SXC and TXC (204 g/day) had similar liveweight gains. Lambs on the LFC diet had a higher dressing proportion (P < 0·001) compared with lambs finished on the HFC diet (0·466 v. 0·434 (S.E. 0·0018) kg carcass per kg live weight). Averaged over the two slaughter weights BXB lambs had a lower (P < 0·05) dressing proportion than the other genotypes. Carcass conformation classification (assessed on a five-point scale) was higher (P < 0·001) in lambs finished on the LFC diet (3·0 v. 2·4 (S.E. 0·04)). Conformation classification was higher in lambs produced from Cheviot compared with Blackface ewes (P < 0·05). Within the Blackface cross lambs, BXB and BLXB lambs had a lower conformation classification (P < 0·001) than TXB lambs (2·4, 2·4 and 2·9 (S.E. 0·08) respectively). Within the Cheviot ewes, TXC lambs had a higher (P < 0·001) classification than either CXC or SXC (3·1, 2·7 and 2·7 (S.E. 0·08) respectively). Lambs finished on the LFC diet had a higher fat classification score compared with lambs on the HFC diet (P < 0·001) (3·4 v. 2·8 (S.E. 0·04)). Fat classification was similar across all genotypes. Lambs finished on the LFC diet had a lower ash content in the carcass than lambs finished on a HFC diet (P < 0·01) (44 v. 47 (S.E. 0·8) g/kg). Lamb genotype and dietary forage:concentrate ratio had no significant effect on cooking loss, sarcomere length, Warner–Bratzler shear force and L* values. Ultimate pH (pHU) was not influenced by dietary forage:concentrate ratio, but was significantly (P < 0·01) higher in BXB lambs compared with BLXB, TXB, CXC and TXC lambs. Lambs offered the LFC diet during the finishing period had significantly higher values for a* (P < 0·05), b* (P < 0·001), C* (P < 0·001) and H0 (P < 0·05) than lambs offered a HFC diet. Of these parameters only b* was significantly affected by lamb genotype, with BXB lambs having a lower value (P < 0·05) than the other genotypes.

An evaluation of beef carcass quality 2. Influence of variation in grazing intensity and the level of barley supplementation with silage on the carcass and meat quality of Friesian steers

1972 ◽  
Vol 15 (3) ◽  
pp. 229-237
Author(s):  
C. E. Hinks ◽  
J. H. D. Prescott
Keyword(s):  
Meat Quality ◽  
Compensatory Growth ◽  
Live Weight ◽  
Grazing Intensity ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Eating Quality ◽  
Winter Period ◽  
Carcass Quality

SUMMARYTwo experiments concerning the effects, on the carcass and meat characteristics of 18-months-old Friesian steers, of variation in grazing intensity and the level of barley feeding with silage are reported.Groups of 12 steers were grazed at different intensities over 5-month grazing periods, such that live-weight differences of 38 kg and 16 kg were recorded at housing. No compensatory growth was recorded during the subsequent winter feeding period.Whilst the grazing treatments had little effect on carcass or meat quality, higher levels of barley feeding with silage over the winter period (710 v. 410 kg/steer) had significant effects on live-weight gain, and increased carcass weight by 21 kg at slaughter. The higher yield of carcass weight was reflected in significant differences in carcass composition, joint proportions and retail cut-out value. Sixty per cent of the carcass weight difference was removed as trim fat. Differences in carcass fatness were not associated with any differences in eating quality.

Effects of growth pathway on beef quality in 18-month-old Angus and South Devon ✕ Angus pasture-fed steers

2001 ◽  
Vol 72 (2) ◽  
pp. 297-308 ◽  
Author(s):  
P.D. Muir ◽  
N.B. Smith ◽  
P.M. Dobbie ◽  
D.R. Smith ◽  
M.D. Bown
Keyword(s):  
Meat Quality ◽  
Compensatory Growth ◽  
Live Weight ◽  
Considerable Effect ◽  
Growth Restriction ◽  
Carcass Weight ◽  
Winter Period ◽  
Meat Tenderness ◽  
Beef Quality ◽  
Significant Difference

AbstractThere is evidence that, in cattle, rapid compensatory growth after a period of growth restriction may increase the variability of beef quality and that variability is greater in breeds which reach larger body size at maturity. This experiment investigated the effect of compensatory growth following a period of winter growth restriction on carcass quality in steers of small and large mature size grazed on pasture. Angus (no. = 120) and South Devon ✕ Angus (SD✕ A; no. = 110) steers were allocated to non-restricted or restricted growth treatment groups and for 126 days over winter their grazing was managed to achieve mean live-weight gains of approximately 0·7 kg/day or to maintain live weight for each group respectively. Steers were slaughtered at the start (no. = 10 per breed) and end (no. = 20 per nutrition group (10 from each breed)) of the winter period for carcass evaluation. Thereafter, remaining steers were grazed together at a high pasture allowance to maximize growth and were slaughtered for carcass evaluation as they reached target live weights (Angus, 590 kg; SD✕ A, 620 kg). SD✕ A steers grew faster (P< 0·05) during both the winter and finishing periods and reached target slaughter live weights approximately 20 days earlier than Angus steers. SD✕ A steers also had leaner carcasses than Angus steers at each slaughter although there was no significant difference in meat quality between breeds. However, there was a significant effect of restriction treatment on carcass weight and meat quality. The non-restricted steers grew faster, had heavier carcasses and more tender steaks than restricted steers, although there was no significant difference in carcass fatness (adjusted for hot carcass weight). Muscle calpain activities were positively correlated with live-weight gain during the finishing period suggesting increased potential for post-mortem myofibrillar proteolysis and therefore increased meat tenderness. However, in the present experiment this was confounded by an increase in shear force with age-at-slaughter, especially in the non-restricted steers. Nevertheless, steers which were heaviest at the start of the experiment reached slaughter live weight earliest, were leaner than average and had higher calpain system activities at slaughter regardless of breed or restriction treatment. Furthermore, in the non-restricted group, high initial live weight and early slaughter was associated with lower pH and more tender meat. In conclusion, although restriction affected meat quality attributes, it appears that live weight prior to food restriction also had a considerable effect on carcass characteristics at slaughter. Therefore, the characteristics of the early growth phase prior to the finishing period may have important consequences for meat quality.

Studies on Belgian Pietrain pigs 2. A comparison of growth and carcass characteristics of Pietrain used in three breed crosses with Landrace, Large White and Hampshire breeds

1972 ◽  
Vol 15 (1) ◽  
pp. 11-19 ◽  
Author(s):  
M. K. Curran ◽  
I. J. Lean ◽  
J. E. Duckworth ◽  
W. Holmes
Keyword(s):  
Weight Gain ◽  
Meat Quality ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Consumption ◽  
Unit Weight ◽  
Large White ◽  
Lean Meat ◽  
Live Weight Gain ◽  
Breed Crosses

SUMMARY1. The growth, feed consumption per unit weight gain, carcass characteristics and some aspects of meat quality were studied in two trials with crosses derived from Landrace (L), Pietrain (P), Hampshire (H) and Large White (LW) breeds.2. In Trial 1, 96 pigs of both pure Landrace and LW(× (L♀ × P♂)♂ origin were studied up to slaughter weights of 64 and 91 kg live weight. In Trial 2, Landrace, LW♀ × (L♀ × P♂)♂ and LW ♂x (P♀x L♂)♂, (H♀ × P♂ × L♂ and (H♀ × P♂)♀ × LW♂ pigs were compared up to 91 kg live weight using 48 pigs of each type.3. All crossbred types showed better economy of production than Landrace when assessed by live-weight gain and feed consumption per unit weight gain. Their carcasses contained greater quantities of lean meat and similar quantities of rind, bone and fat than Landrace at comparable weights, but they exhibited a variable tendency to poorer meat quality. LW × (L × P) and LW × (P × L) carcasses at 91 kg live weight were shorter than Landrace; 4% and 14% of pigs in trials 1 and 2 respectively were less than the currently acceptable length of bacon pigs (775 mm). (H × P) × LW and (H×P)×L carcasses at this weight were much shorter; 34% and 38% respectively were less than 775 mm.

Meat production from pigs which have farrowed. 2. Carcass characteristics

1975 ◽  
Vol 20 (1) ◽  
pp. 123-131 ◽  
Author(s):  
P. H. Brooks ◽  
D. J. A. Cole ◽  
W. J. N. Jennings
Keyword(s):  
Young Adult ◽  
Meat Quality ◽  
Adult Female ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Control Group ◽  
Meat Production ◽  
Large White ◽  
Treatment Groups ◽  
Significant Difference

SUMMARYThe carcass characteristics of young adult female pigs (gilts) slaughtered after weaning their first litters have been investigated using three groups of 19 Landrace × (Landrace×Large White) gilts. In two treatment groups gilts were mated at their pubertal oestrus and suckled their piglets for 5 to 11 and 35 to 42 days respectively. These gilts were slaughtered on average 10 days after weaning. A third control group consisted of unmated gilts slaughtered at 118 kg live weight.There was no significant difference in the killing-out percentage for the three groups. The carcasses of the gilts which farrowed contained significantly less fat (P<0·001) than those of the unmated controls. The carcasses of the farrowed gilts had significantly lighter middle sections (P<0·001) and significantly heavier shoulders (P<0·001) than the controls.Despite the variations in tissue yield and distribution, the yield of prime joints for the gilts which had farrowed was only 0·62 percentage units less than that of the controls.No commercially significant variations between groups in meat quality were observed.

Growth, carcass characteristics and meat quality of rabbits given maize ears or maize plant

2006 ◽  
Vol 82 (5) ◽  
pp. 731-737
Author(s):  
M. Pla ◽  
M. Martínez ◽  
C. Cervera
Keyword(s):  
Meat Quality ◽  
Control Diet ◽  
Fatty Acid Content ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Point Of View ◽  
Maize Plant ◽  
Control Group ◽  
Intermuscular Fat ◽  
Group 2

AbstractThree hundred young rabbits were divided into three groups at weaning and given ad libitum a control diet (C), or an experimental diet in which 0·20 of control diet was substituted by maize ear (E) or by whole maize plant (P) in order to examine their effects on fattening rabbits performance, carcass characteristics and meat quality. No significant differences were found in live-weight gain (45 g/day) or in food intake between diets but food conversion ratio was higher in the P group (2·4 g dry matter (DM) per g gain) than in E group (2·2 g DM per g gain). The rate of mortality was similar in the three groups. No differences between groups on live weight (2152 g) or in the digestive tract weight (437 g) were found and the dressing yield was similar in the three groups. At constant carcass weight, the carcasses of rabbits of the P group had lesser lumbar circumference and higher length to circumference ratio (P<0·0001) than of the C or E groups. No differences were found in the weights of liver or thoracic viscera, but kidneys of rabbits of P group were lighter than of the C or E groups. No differences between groups were found in the weights of scapular fat, perirenal fat, forelegs or thoracic cage, but the loin of rabbits of P group was heavier (291 v. 286 g) than in the other groups. Meat of rabbits P had higher L* and b* parameters of colour and higher water-holding capacity (P=0·003) but the meat of rabbits of the control group had less lipids (31 v. 36 g/kg meat) and more moisture (739 v. 735 g/kg meat) than of the experimental groups. The proportion of protein was higher in E group than in P group. Intra and intermuscular fat of hind leg meat from rabbits ‘maize’ substituted was more monounsaturated than control rabbits (34·2 v. 32·5 g·100 g lipids) and had lesser saturated: monounsaturated ratio (1·2 v. 1·3) indicating a more desirable meat from a nutritional point of view, but had less n-3 fatty acid content. Loin meat of the rabbits given E and P diets seems more tender than one fed conventionally (10·4 v. 11·4 kg) and meat of the rabbits ‘whole maize plant’ had more grass flavour (P=0·009) which is a positive factor for acceptability of consumers.

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