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.

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 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.

Effect of scent leaf meal (Ocimum gratissimum) supplementation on performance, carcass and meat quality of broiler chicken

2020 ◽  
Vol 45 (3) ◽  
Author(s):  
M. D. Olumide ◽  
A. S. Akintola
Keyword(s):  
Meat Quality ◽  
Broiler Chicken ◽  
Live Weight ◽  
Feed Conversion ◽  
Ocimum Gratissimum ◽  
Leaf Meal ◽  
Randomized Design ◽  
Carcass Parameters ◽  
Dietary Treatments

This study was conducted to determine the effect of Ocimum gratissimum leaf meal supplementation on the performance, carcass characteristics and meat quality of broiler chicken. One hundred and fifty day old Abhor Acre strains of broiler birds were assigned to five dietary treatments with thirty birds per treatment in a completely randomized design. Ocimum gratissimum leaf meal at 0g, 100g, 200g, 300g and 400g per 100kg of feed was added to the diets. The experiment lasted for seven weeks. Data on feed intake, weight gain and feed conversion ratio were collected. Two birds per replicate were randomly selected, weighed, slaughtered and properly dressed for carcass parameters such as live weight, plucked weight, dressing percentage, head, neck, wing weight, thigh weight, drumstick, organ weight and sensory evaluation was carried out. The result of the performance characteristics showed that there were significant differences (p

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.

Sustained growth promotion, carcass characteristics, and meat quality of steers treated with oestradiol-17b

2000 ◽  
Vol 51 (1) ◽  
pp. 133 ◽  
Author(s):  
R. A. Hunter ◽  
T. Magner ◽  
P. G. Allingham
Keyword(s):  
Meat Quality ◽  
Growth Promotion ◽  
Animal Health ◽  
Bos Indicus ◽  
Carcass Characteristics ◽  
Experimental Period ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Tropical Pastures

The experiment measured the effect of 2 hormonal growth promotion strategies on growth rate, carcass characteristics, and some objective measurements of meat quality of steers. Bos indicus × Bos taurus crossbred steers grazing improved tropical pastures were divided into 3 treatment groups: unimplanted controls, implantation once with a long-acting formulation containing 45 mg oestradiol-17β (Compudose 400, Elanco Animal Health, West Ryde, NSW), implantation every 105 days with a shorter acting formulation containing 20 mg oestradiol-17β (Compudose 100) (4 implantations). Over a 420-day experimental period, steers implanted several times with oestradiol gained significantly (P < 0.001) more weight (279 kg) than those implanted once (251 kg) and the controls (230 kg). Respective carcass weights were 270, 255, and 244 kg. At the same carcass weight, oestradiol treatment had no significant effect on beef yield or carcass fatness. Increased total beef yields from implanted steers were associated with increased carcass weight, rather than significant modification of carcass composition. Treatment had no significant effect on any of the objective measures of meat quality studied, including ultimate pH, peak force, compression, and adhesion.

scholarly journals Effect of Genotype and Slaughter Age on Carcass Traits and Meat Quality of the Celta Pig Breed in Extensive System

2016 ◽  
Vol 16 (1) ◽  
pp. 259-273 ◽  
Author(s):  
Daniel Franco ◽  
Javier Carballo ◽  
Roberto Bermñudez ◽  
José M. Lorenzo
Keyword(s):  
Meat Quality ◽  
Profile Analysis ◽  
Carcass Traits ◽  
Live Weight ◽  
The Other ◽  
Carcass Weight ◽  
Texture Parameters ◽  
Slaughter Age ◽  
Colour Parameters

Abstract The objective of this study was to investigate the effects of genotype and slaughter age on carcass traits and meat quality of the Celta pig breed. Samples from 95 pigs of three lines (Barcina, Santiaguesa and Carballina) slaughtered at two different ages (12 and 16 months) were analysed. Pigs’ slaughter at 16 months showed significantly (P<0.001) higher live weight (157.2 vs. 178.9 kg), cold carcass weight (122.9 vs. 141.9 kg) and killing out percentage (77.7 vs. 79.5%; P<0.001) compared to those slaughtered at 12 months. Genotype also affected the live weight and cold carcass weight, both of which were highest in the Santiaguesa line. Changes in meat quality in relation to slaughter age and genotype were observed. The fat content increased with slaughter age, but did not vary with genotype. Regarding colour parameters, the L* values (48.53) were lower and a* values (11.55) were higher in samples of the Barcina line, indicating that the meat was darker and redder than in the other two lines. Both slaughter age and genotype had significant effects on texture parameters measured by the Warner Bratzler test, whereas textural profile analysis revealed significant differences mainly due to genotype.

scholarly journals Effects of Supplementing Crude Glycerin in Concentrated Diet and Castration on Carcass Characteristics and Meat Quality of Thai Native x Anglo Nubian Goats

2017 ◽  
Vol 16 (7) ◽  
pp. 477-486
Author(s):  
Anneke ANNEKE ◽  
Chaiyawan WATTANACHANT ◽  
Saowakon WATTANACHANT
Keyword(s):  
Meat Quality ◽  
Control Diet ◽  
Live Weight ◽  
Carcass Composition ◽  
Carcass Weight ◽  
Crude Glycerin ◽  
Fat Percentage ◽  
Intact Male ◽  
Randomized Design

The effects of feeding concentrate diet containing crude glycerin supplementation and castration on carcass composition and meat quality of Thai Native x Anglo-Nubian (TN-AN) goats were investigated. Twenty TN-AN goats at the age of 12 months old with 24.75±1.33 kg initial live weight were allotted into a 2x2 factorial arrangement in completely randomized design when factor A was assigned for sexes (intact and castrated male) and factor B was assigned for 2 types of concentrate diet (control diet and diet supplemented with 10 % crude glycerin). Goats were intensively raised in individual pens with ad libitum water and Atratum grass (Paspalum atratum), while 2 % of concentrate diets was provided. After 90 days of feeding, 3 goats from each treatment combination were randomly sampled and sacrificed for further examination. From the study, castrated male goats had significantly higher slaughter and carcass weight, carcass fat percentage and chemical fat percentage than those of the intact males (P < 0.01). In addition, muscle from castrated male goats was more tender and lighter in color as compared with intact male goats (P < 0.01). Goats receiving a diet with extra glycerin had significantly higher weight at slaughter, warm carcass weight, carcass fat, and chemical fat percentages than those on the control diet. Therefore, it could be concluded that feeding goats with a diet of 10 % supplementary glycerin and castration could lead to better slaughter and warm weight, whereas a higher fat content in the carcass and muscle are observed.

scholarly journals The inclusion of black cumin meal improves the carcass characteristics of growing Awassi lambs

2021 ◽  
Vol 14 (1) ◽  
pp. 237-241
Author(s):  
Belal S. Obeidat
Keyword(s):  
Meat Quality ◽  
Nigella Sativa ◽  
Carcass Characteristics ◽  
Fruit Weight ◽  
Eye Muscle ◽  
Black Cumin ◽  
Dietary Treatments ◽  
Black Cumin Seed ◽  
Awassi Lambs

Background and Aim: Black cumin meal (BCM) is the principal by-product that can be obtained from black cumin seed (Nigella sativa L) after the oil is removed from the fruit and represents 70-75% of the fruit weight. The aim of this experiment was to assess the influence of feeding BCM on the carcass characteristics and meat quality of growing lambs. Materials and Methods: Twenty-four Awassi lambs were randomly divided into two dietary treatments. The lambs were penned individually in single pens and provided access to ad libitum feed and water. The dietary treatments were no BCM (control [CON]; n=12) or 150 g BCM/kg (BCM 150; n=12) of dietary dry matter. Results: Lambs fed BCM had greater (p≤0.01) fasting live BW, and hot and cold carcass weights. Leg fat and eye muscle depth were lower (p≤0.05) in CON versus BCM lambs. Meat whiteness (L*), redness (a*), and yellowness did not differ between lambs fed the two diets. Conclusion: The inclusion of BCM improves lamb carcass characteristics, but does not affect lamb meat quality.

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