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.

Effects of slaughter age on carcass traits and meat quality of crossbred (Duroc × Landrace × Yorkshire) finishing pigs

2021 ◽  
pp. 1-7
Author(s):  
Zhongyang Guo ◽  
Xiaoling Chen ◽  
Daiwen Chen ◽  
Mingzhou Li ◽  
Jingdong Yin ◽  
...  
Keyword(s):  
Meat Quality ◽  
Carcass Traits ◽  
Finishing Pigs ◽  
Slaughter Age

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.

scholarly journals Body size, carcass and meat quality of three commercial beef categories of ‘Serrana de Teruel’ breed

2016 ◽  
Vol 14 (3) ◽  
pp. e0604 ◽  
Author(s):  
Guillermo Ripoll ◽  
Pere Albertí ◽  
Javier Alvarez-Rodríguez ◽  
Isabel Blasco ◽  
Albina Sanz
Keyword(s):  
Body Size ◽  
Meat Quality ◽  
Maximum Stress ◽  
Subcutaneous Fat ◽  
The Other ◽  
Carcass Weight ◽  
Slaughter Weight ◽  
Fat Thickness

The aim of this study was to analyse three commercial beef categories of the ‘Serrana de Teruel breed’ to define the appropriate commercial option. Twenty ‘Serrana de Teruel’ male calves at 9 months were assigned to the commercial beef categories (young bulls, bulls and steers), slaughtered at 12, 22 and 22 months of age, respectively. The in vivo ultrasound backfat thickness was greater than the dorsal fat thickness, and the young bulls and steers had a similar fat thickness, that was greater than the bulls in both areas. The slaughter weight and cold carcass weight were significantly different between the commercial categories. However, the differences were not sufficient to modify the dressing percentage, carcass conformation and fatness degree between the young bulls and bulls. The maximum stress of the muscle at 7 d of ageing was lower in the steers than in the young bulls and bulls. In general, the lightness of the meat in the bulls was lower than that in the young bulls and steers. The subcutaneous fat of the bull carcasses had a vivid colour and stored more carotenoids than that of the young bulls and steers. Hence, bulls produced heavier and better conformed carcasses with more edible meat and less fat than the other categories. However, steers are recommended to produce large carcasses with more trim and cover fat than the other categories. Finally, it seems that bulls are the most suitable commercial category to ‘Serrana de Teruel’ breed.

scholarly journals Quantitative carcass characteristics and quality of shoulder and loin of crossbred goat kids receiving diets with live yeast (Saccharomyces cerevisiae var. boulardii)

2021 ◽  
Vol 42 (6) ◽  
pp. 3515-3526
Author(s):  
Fernanda Maraquena Soares Pili ◽  
◽  
Cibele Regina Schneider ◽  
Caroline Isabela da Silva ◽  
Giovana da Silva Oliveira ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Dry Matter ◽  
Live Weight ◽  
Carcass Weight ◽  
Yeast Saccharomyces Cerevisiae ◽  
Slaughter Age ◽  
Qualitative Characteristics ◽  
Compactness Index ◽  
Live Yeast

The objective of this study was to evaluate the influence of live yeast (Saccharomyces cerevisiae var. boulardii) on the quantitative and qualitative characteristics of the shoulder and loin of Boer x Saanen crossbred goat kids. Twenty-seven carcasses were used, 13 females and 14 uncastrated males with an average age of 192 days, weighing 30.76 kg, distributed in a completely randomised design using a 2 x 2 factorial arrangement (diet and sex). The yeast was added to the feed before pelletising in a proportion of 0.050 g/kg dry matter (DM). When the goats reached an average of 30 kg of live weight, they were slaughtered. No effects of live yeast on quantitative carcass and qualitative characteristics of shoulder and loin were observed. Regarding sex, males had higher slaughter weights (31.73 kg), empty carcass weight (27.98 kg), hot carcass weight (14.39 kg), cold carcass weight (14.22 kg), higher carcass compactness index (0.28 kg/cm), lower slaughter age (176 days) and lower cooling loss (1.20%). For the cut yields, females presented a higher loin yield (11.55%) and males presented a higher neck yield (6.84%). In the shoulder, males presented a higher proportion of bone (18.58%), while females presented a higher proportion of fat (17.09%) and muscle:bone (3.47). In the loin, females showed higher fat deposition (19.54%) in relation to males. The inclusion of yeast Saccharomyces cerevisiae var. boulardii in the crossbred goat kids’ diet did not generate differences in the quantitative and qualitative characteristics of the shoulder and loin.

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.

Evaluation of eleven cattle breeds for crossbred beef production: carcass data from males slaughtered at two ages

1990 ◽  
Vol 50 (1) ◽  
pp. 79-92 ◽  
Author(s):  
C. A. Morris ◽  
R. L. Baker ◽  
A. H. Carter ◽  
S. M. Hickey
Keyword(s):  
Carcass Traits ◽  
Genetic Correlations ◽  
Live Weight ◽  
High Energy ◽  
Carcass Weight ◽  
Standard Errors ◽  
Slaughter Weight ◽  
Random Samples ◽  
Slaughter Age ◽  
Sire Breed

ABSTRACTAn experiment was carried out to compare sire breeds for carcass traits and to estimate heritabilities and phenotypic and genetic correlations. There were 1908 male cattle from 5 birth years. The sire breeds, each evaluated over three locations, were Blonde d'Aquitaine, Charolais, Chianina, Limousin, Maine Anjou, Simmental (four strains: Austrian, French (Pie Rouge), Swiss and West German) and South Devon (i.e. seven imported breeds) and Angus, Friesian, Hereford and Jersey (four local breeds), with a total of 161 sires represented. Each location contained Angus cows and additionally one location contained Hereford cows. Proportionally 0·72 of the cattle were slaughtered at about 20 months of age, whilst random samples from each of the first 4 years were retained for slaughter at about 31 months of age.Sire breeds ranked similarly for live weight at 13 months of age and for pre-slaughter weights at both 20 and 31 months of age. Relative to the Hereford-cross, the seven imported breeds were proportionally 0·054 to 0·072 heavier at slaughter (depending on slaughter age) and they had 0-065 to 0·077 heavier carcasses. Dressing proportions for the Blonde d'Aquitaine, Chianina and Limousin sire breeds were higher by at least 0007 units than for the Hereford-cross. The seven imported breeds were all leaner and had larger areas of m. longissimus than the Hereford-cross cattle. Friesian-crosses also had high live or carcass weights although they were intermediate for fat depth.The interaction of sire and dam breeds were only significant for fat depth (both slaughter ages) and for pre-slaughter and hot carcass weights (31-month slaughter age only). Interactions between sire breed and location were not important.Heritability estimates on data adjusted to a slaughter age of 595 days were: pre-slaughter weight 0·29, hot carcass weight 0·28, dressing proportion 0·14, fat depth 0·03 and m. longissimus area 0·30. Corresponding values on cattle whose records were adjusted to an age of 935 days were 0·56, 0·44, 0·39, 0·37 and 0·29. These values were from cattle grazed on pasture, and were generally lower than those from America (from cattle offered high energy rations). Phenotypic correlations among all pairs of traits were positive, whilst genetic correlations were positive for all pairs except those involving fat depth (where standard errors were large).

scholarly journals Qualitative characteristics of meat from cull cows of different genotypes and age class slaughter under different finishing systems: a meta-analytic approach

2015 ◽  
Vol 87 (2) ◽  
pp. 1083-1093
Author(s):  
Rangel F. Pacheco ◽  
Andrei R. Mayer ◽  
Marcos A.B. Vaz ◽  
Luciana Pötter ◽  
Jonatas Cattelam ◽  
...  
Keyword(s):  
Meat Quality ◽  
Meta Analysis ◽  
The Other ◽  
Online Research ◽  
Age Class ◽  
Cull Cows ◽  
Old Adult ◽  
Slaughter Age ◽  
Qualitative Characteristics

The aim of this study was to evaluate, by meta-analysis, the quality of the meat of the cows according to genotype, termination system and age class slaughter. During an online research were identified 15 articles with information related to meat quality of slaughtered cows. The data were grouped according of the genotype of cows being: zebu or continental defined, crossed zebu x british or zebu x continental; according to termination system: feedlot or grassland; according to age of slaughter, where: up to 4 years old (young), 4-8 years old (adult) or more than 8 years old (old). The meat of the continental crossbred cows was softer than the other genotypes, both panel of evaluators and by Shear. The meat of cows finished in feedlot showed higher marbling degree in relation to meat of females finished on grassland. The reduction of the slaughter age of cows improved the meat color. The cow's genotype affects the organoleptic aspects of meat while the finished system and slaughter age affects the sensory aspects of meat.

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.

Sign in / Sign up

Export Citation Format

Share Document