Sheep production in Spanish dry mountain areas: 3. The effect of fattening system on carcass traits, fat and muscle colour and meat texture in light lambs of Churra Tensina breed

2005 ◽  
Vol 2005 ◽  
pp. 147-147 ◽  
Author(s):  
G. Ripoll ◽  
A. Sanz ◽  
J. Alvarez ◽  
M. Joy ◽  
R. Delfa ◽  
...  
Keyword(s):  
Meat Quality ◽  
Production System ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Lower Degree ◽  
Forage Production ◽  
Mountain Areas ◽  
Sheep Production ◽  
Daily Gain

The lambs production system in the South-European countries is characterised by producing light carcasses (< 13 kg) of young animals, less than 90 days old, and fed with the ewe milk and supplemented with concentrates. However, there is an increasing concern on the study of forage production system in growing lambs as a consequence of the interest in diversifying products and producing healthy and safe meat. When forage is included in the fattening diet a reduction of average daily gain is observed and carcasses have a lower degree of fatness, in comparison to the drylot system. The modification in the traditional type of carcass must be evaluated in order to assure that the final product meets the consumer demands. The objective of this experiment was to evaluate the effect of the lambs fattening system on the carcass characteristics and meat quality especially on the instrumental analysis traits as colour and texture.

Effects of dietary supplement of mulberry leaf (Morus alba) on growth and meat quality in rabbits

2018 ◽  
Author(s):  
Q.R. Hou ◽  
J. Zhang ◽  
T. Chen ◽  
W.G. Zhao ◽  
L. Li
Keyword(s):  
Meat Quality ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
B Value ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Leg Muscles ◽  
Mulberry Leaf ◽  
Leaf Powder ◽  
Daily Gain

This research evaluated the effects of mulberry leaf in diet on growth and meat quality in rabbits. Five treatment diets were prepared by using a proportion of 0% (CK), 5% (ML5), 10% (ML10), 15% (ML15) and 20% (ML20) mulberry leaf powder (MLP), respectively. Results showed that average daily gain (ADG) in the ML20 group was significantly (P£ 0.05) lower than that in the CK, ML5 and ML10 treatments. Feed conversion ratio (FCR) in the ML20 treatment was significantly (P£ 0.05) higher than that in all other treatments. Most of the carcass characteristics had no significant differences among the five treatments (P>0.05), however, abdominal fat percentage in the four MLP treatments was significantly (P£ 0.05) lower than that in the CK. The L* and a* values in most of MLP treatment samples of longissimus dorsi and hind leg muscles were significantly increased, and the b* value significantly declined than those in the CK (P£ 0.05). Drip loss values in the ML10, ML15 and ML20 group were significantly (P£ 0.05) lower than those in the CK. Moisture, fat and ash contents in the higher MLP level treatments (ML15 and ML20) were significantly (P£ 0.05) lower than those in the CK. In conclusion, MLP for a certain proportion in diet (£ 15%)is greatly valuable for improvement of growth and meat appearance of rabbits, and a high proportion of MLP (e.g. ³ 20%) may impede growth of young rabbits.

Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle

2012 ◽  
Vol 92 (3) ◽  
pp. 327-341 ◽  
Author(s):  
E. M. McGregor ◽  
C. P. Campbell ◽  
S. P. Miller ◽  
P. P. Purslow ◽  
I. B. Mandell
Keyword(s):  
Beef Cattle ◽  
Growth Performance ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
High Energy ◽  
Ad Libitum ◽  
Limit Feeding ◽  
Daily Gain

McGregor, E M., Campbell, C. P., Miller, S. P., Purslow, P. P. and Mandell, I. B. 2012. Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle. Can. J. Anim. Sci. 92: 327–341. The effects of nutritional management regimen and breed on growth performance, carcass attributes, and meat quality were evaluated in 68 British (BRIT) and Continental (CONT) crossbred steers, managed on one of three nutritional regimens: (1) ad libitum access to a 77% corn diet (ALGRAIN), (2) limit feeding initially of the 77% corn diet, followed by ad libitum access to the 77% corn diet (LFGRAIN), and (3) limit feeding initially of a 90% haylage diet, followed by ad libitum access to the 77% corn diet (LFHAYL). Nutritional regimen by breed interactions (P<0.02) were present for average daily gain, dry matter intake (DMI), gain to feed, and shear force. LFHAYL regimen decreased gains to a greater extent for BRIT steers than CONT steers managed on ALGRAIN or LFGRAIN. Feed intakes were similar across nutritional regimens for CONT steers, while DMI was depressed in BRIT on LFHAYL as compared with steers started on ALGRAIN or LFGRAIN. Gain to feed was greater in BRIT cattle on LFGRAIN vs. ALGRAIN, while gain to feed was similar in CONT started on grain (ALGRAIN, LFGRAIN). Shear force was lower for beef from LFHAYL BRIT vs. beef from BRIT on ALGRAIN or LFGRAIN, while the converse was true for CONT. Limit feeding of a high-energy diet may be appropriate for cattle of British background to reduce feed input costs, while ensuring tenderness.

scholarly journals Effects of concentrate level and rapeseed meal supplementation on performance, carcass characteristics, meat quality and valuable cuts of Hereford and Charolais bulls offered grass silage-barley-based rations

2013 ◽  
Vol 22 (1) ◽  
pp. 151-167 ◽  
Author(s):  
Maiju Pesonen ◽  
Markku Honkavaara ◽  
Helena Kämäräinen ◽  
Tiina Tolonen ◽  
Mari Jaakkola ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Dry Matter ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Rapeseed Meal ◽  
Lower Degree ◽  
Grass Silage ◽  
Concentrate Level

The objectives of this experiment with Hereford (Hf) and Charolais (Ch) bulls offered grass silage-based diets were to determine the effects on performance, carcass traits and meat quality of the proportion of concentrate in the diet, and the inclusion of rapeseed meal (RSM) in the barley-based concentrate. The two concentrate proportions were 200 and 500 g kg-1 dry matter, fed without or with RSM. The Ch bulls tended to achieve higher gain, produced less fat, had a higher percentage of meat from high-priced joints and had a lower degree of marbling in their meat compared to the Hf bulls. Dry matter and energy intakes, growth performance and carcass conformation improved with increasing concentrate level. Intake parameters and conformation improved more with the Ch bulls than with the Hf bulls as a consequence of increased concentrate allowance. RSM had only limited effects on the performance, carcass traits or meat quality.

scholarly journals The “Criollo Negro de la Costa Ecuatoriana” pigs: effect of sex and rearing system on performance, carcass and meat traits

2016 ◽  
Vol 14 (1) ◽  
pp. e0601
Author(s):  
Martín A. González ◽  
Franklin R. Peláez ◽  
Andrés L. Martínez ◽  
Carmen Avilés ◽  
Francisco Peña
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Mineral Composition ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Morphometric Parameters ◽  
Lower Percentage ◽  
Quality Traits ◽  
Daily Gain

<p>The objective of this study was to evaluate the effect of rearing system (confinement, C <em>vs </em>semi-confinement, SC) and sex (barrows <em>vs </em>females) on growth performance, carcass traits and meat quality of “Criollo negro de la costa ecuatoriana” pigs. A total of 32 pigs, 16 barrows and 16 gilts were used. The average daily gain (0.30 kg/day <em>vs </em>0.22 kg/day), slaughter weight (51.4 kg <em>vs </em>43.1 kg), morphometric parameters and weights for the most valuable meat cuts were higher in C pigs than in SC pigs, whereas hot and cold carcass yields were higher in SC pigs than in C pigs. The loin and sirloin percentages from C pigs were lower and higher compared with those SC pigs, respectively. Carcass of C pigs showed higher percentage of fat and lower percentage of lean and bone that SC pigs. The rearing system had scarce effects on meat quality traits and mineral composition. Meat from C pigs showed lower scores for color, brightness, and unctuousness, and higher for metallist taste, juiciness and persistence of flavor than SC pigs. Few sensory attributes of cooking chops were affected by sex. Metallist taste was higher in barrows, while brightness and lard flavor were higher in females. It can be concluded that the rearing system had a significant effect on most of the productive and carcass traits, whereas its effect was limited on the meat traits. Sex had little influence on most of the traits studied.</p>

scholarly journals Performance, carcass characteristics, and centesimal composition of meat from Santa Inês lambs and Texel crossbred lambs (Santa Inês × Texel)

2019 ◽  
Vol 99 (2) ◽  
pp. 228-236
Author(s):  
Iolanda Aparecida Nunes ◽  
Ricardo Alessandro Martins Brito ◽  
Letícia Aparecida de Morais ◽  
Vanessa Souza Silva ◽  
Marco Antônio Pereira da Silva ◽  
...  
Keyword(s):  
Weight Gain ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Great Influence ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Feed Conversion ◽  
Significant Difference ◽  
Santa Inês ◽  
Daily Gain

This study evaluated the performance, carcass characteristics, and centesimal composition of the meat of intact and castrated lambs of the Santa Inês breed and of the crossbred animals: one-half Santa Inês × one-half Texel. Thirty-four lambs were used, nine intact and nine castrated males of the Santa Inês breed, and seven intact and nine castrated crossbred males, all aged between 6 and 7 mo and with an average live weight of 18.2 kg. The design was completely randomized in a 2 × 2 factorial (two crossing and two sexual conditions), with statistical analyses performed in the STAT version 9.4 program. There was a significant difference the Santa Inês and the Texel and Santa Inês crossbred animals in feed conversion and average daily gain, with superiority of the latter group. Castration of animals aged <12 mo had no significant effect on the performance and on the carcass traits of the Texel and Santa Inês crossbred animals, whereas the genotype had a great influence on weight gain and on subjective and quantitative carcass characteristics, demonstrating that crosses in sheep are needed to explore the complementarity of breeds, and heterosis is needed to achieve better performances and carcass characteristics.

EFFECTS OF DIETARY ROUGHAGE LEVEL ON THE FEEDLOT PERFORMANCE AND CARCASS CHARACTERISTICS OF BULLS AND STEERS

1978 ◽  
Vol 58 (2) ◽  
pp. 303-311 ◽  
Author(s):  
M. A. PRICE ◽  
G. W. MATHISON ◽  
R. T. BERG
Keyword(s):  
Growth Rate ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Carcass Characteristics ◽  
Feedlot Performance ◽  
Digestible Energy ◽  
Feed Cost ◽  
Daily Gain

An experiment is described comparing bulls and implanted steers fed diets containing three roughage levels (20, 50 and 80% alfalfa–brome hay) with two pens of four cattle in each ’sex’ × dietary roughage level subgroup. Cattle were about 12 mo old and 230 kg at the start of the trial. Each animal was slaughtered when it reached 500 kg. No significant castration × roughage level interactions were found for any of the feedlot or carcass traits studied. Increasing the level of roughage in the diet resulted in a significant decrease in average daily gain (P < 0.01) and an increase in average daily feed (P < 0.01) and feed per kilogram gained (P < 0.01) to 500 kg. Differences in daily digestible energy (DE) consumption and DE and feed cost per kilogram gained were not significant. Increasing the roughage level reduced all measures of carcass fatness (P < 0.05) but had no significant effect on the muscle content. Castration significantly reduced growth rate (P < 0.01) and increased feed requirement per unit of gain (P < 0.05). Steer carcasses were lighter (P < 0.01) and fatter (P < 0.01) than those of bulls and had lighter sample muscle weights (P < 0.01) and smaller sample muscle:bone ratios (P < 0.01).

Effect of cimaterol on growth, carcass characteristics and meat quality in double-muscled Belgian White-blue bulls

1994 ◽  
Vol 74 (4) ◽  
pp. 707-709 ◽  
Author(s):  
Ch. V. Boucqué ◽  
L. O. Fiems ◽  
B. G. Cottyn ◽  
R. J. Moermans ◽  
M. Sommer
Keyword(s):  
Key Words ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Corn Silage ◽  
Carcass Weight ◽  
Daily Gain

Thirty-two double-muscled Belgian White-blue bulls, within a liveweight range of 542 (± 37) to 722 (± 31) kg, daily received 0 or 60 μg cimaterol kg−1 liveweight in a corn silage diet for 136 (± 29) d. Cimaterol slightly improved average daily gain from 1.28 to 1.38 kg (P > 0.05). Cold carcass weight and dressing were increased by cimaterol from 497.0 to 514.6 kg (P < 0.05) and from 71.0 to 72.9% (P < 0.001), respectively. Even in extremely meaty animals, cimaterol exerted a significant repartitioning effect towards more meat and less fat, both in the carcass and in the longissimus thoracis muscle. Cimaterol increased the shear force value from 37.1 to 52.7 N (P < 0.001) but had no effect on other organoleptical traits. Key words: Cimaterol, double-muscled bulls, growth, carcass, meat quality

scholarly journals Dietary Beta-Hydroxy-Beta-Methyl Butyrate Supplementation Affects Growth, Carcass Characteristics, Meat Quality, and Serum Metabolomics Profile in Broiler Chickens

2021 ◽  
Vol 12 ◽  
Author(s):  
Zhiyi Tang ◽  
Bo Song ◽  
Changbing Zheng ◽  
Jie Zheng ◽  
Yulong Yin ◽  
...  
Keyword(s):  
Meat Quality ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Methyl Butyrate ◽  
Metabolome Profiling ◽  
Daily Gain ◽  
Serum Metabolomics

This study aimed to explore the effects of beta-hydroxy-beta-methyl butyrate (HMB) on serum metabolic profiles and meat quality of muscles in Wenshi broiler chickens. Birds were fed a basal diet with an additional 0, 0.05, 0.10, or 0.15% HMB, respectively. Results showed that dietary HMB quadratically increased the average daily gain (P = 0.058) and decreased feed:gain (P &lt; 0.05) mainly in the starter phase. At 51 days of age, birds receiving 0.10% HMB diet exhibited less abdominal fat and more breast yield than the control (P &lt; 0.05). Moreover, dietary HMB quadratically decreased the L∗ value and drip loss in selected muscles (P &lt; 0.05) and increased the a∗ value in breast muscle (P &lt; 0.05). Serum metabolome profiling showed that the most differentially abundant metabolites are lipids and lipid-like molecules, including phosphatidylcholines. It was concluded that HMB improved growth performance and meat quality of muscle in broilers.

scholarly journals Effect of Zilpaterol Hydrochloride on Performance and Meat Quality in Finishing Lambs

Agriculture ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 241
Author(s):  
Jorge Adalberto Cayetano-De-Jesus ◽  
Rolando Rojo-Rubio ◽  
Alicia Grajales-Lagunes ◽  
Leonel Avendaño-Reyes ◽  
Ulises Macias-Cruz ◽  
...  
Keyword(s):  
Meat Quality ◽  
Linear Trend ◽  
Block Design ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Control Treatment ◽  
Productive Performance ◽  
Zilpaterol Hydrochloride ◽  
Randomized Complete Block Design ◽  
Daily Gain

Twenty-four Dorper x Pelibuey lambs were housed in individual pens during a 31-d feeding period and assigned to four treatments (n = 6) under a randomized complete block design with different daily doses of zilpaterol hydrochloride (ZH): 0 (control), 0.1, 0.2, and 0.3 mg/kg BW to determine the effects of ZH supplementation on productive performance, meat quality, and wholesale cut yields. Final BW (p = 0.02) and average daily gain (ADG, p = 0.04) were greater in lambs supplemented with 0.2 mg/kg BW. Supplemental ZH tended to improve dry matter intake (DMI, p = 0.008) and ADG:DMI ratio (p = 0.078). Wholesale cut yields were not affected by ZH supplementation. Percentage of head was greater (p = 0.04) in lambs treated with ZH. The ZH supplementation did not affect carcass characteristics. However, longissimus thoracis et lumborum (LTL) presented a linear trend (p = 0.08) of increasing with ZH supplementation. Percentage of blood presented a trend (p = 0.051) of decreasing with ZH supplementation. Also, liver decreased in size (p < 0.05) for treatments where ZH was included. Values of luminosity decreased (p < 0.02) when ZH dosage increased. The value of protein Lowry was greater, with 0.3 mg kg−1 (p = 0.04). Cathepsin B + L was greater in the lambs from the control treatment (p = 0.05). In conclusion, using a daily ZH dosage of 0.2 mg per kg of BW produced the best productive performance, carcass characteristics, and some changes in the meat of hair-breed lambs.

scholarly journals Effect of Supplementary Levels of Rumen-Protected Lysine and Methionine on Growth Performance, Carcass Traits, and Meat Quality in Feedlot Yaks (Bos grunniens)

Animals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 3384
Author(s):  
Zhiyuan Ma ◽  
Zhiwei Zhao ◽  
Hucheng Wang ◽  
Jianwei Zhou ◽  
Chengfu Zhang
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Carcass Traits ◽  
Basal Diet ◽  
Drip Loss ◽  
Meat Color ◽  
Gain Ratio ◽  
Daily Gain

Yak, a unique bovine species on the Qinghai-Tibetan Plateau, has provided pastoralists with the basic materials of production and life for thousands of years. Existing literature showed that yak meat is of high nutritional value for humans whereas the growth performance is relatively low. As it has been demonstrated, lysine and methionine are the two key limiting amino acids in ruminants. Therefore, this study was conducted to investigate the effect of supplementary levels of rumen-protected lysine (RPL) and methionine (RPM) on growth performance, carcass traits, and meat quality in feedlot yaks. Thirty-two male yaks, with initial body weight (IBW) of 237.5 ± 13.99 kg were randomly assigned to four dietary treatments (n = 8), including control group (CON; basal diet without adding rumen-protected amino acid (RPAA)), low RPAA supplementation group (Group Low; basal diet supplemented with RPL (30.0 g/animal/day) and RPM (7.5 g/animal/day)), medium RPAA supplementation group (Group Medium; basal diet supplemented with RPL (50.0 g/animal/day) and RPM (12.5 g/animal/day)), and high RPAA supplementation group (Group High; basal diet supplemented with RPL (70.0 g/animal/day) and RPM (17.5 g/animal/day)). The average daily gain was increased linearly (p < 0.001) and quadratically (p < 0.01) while feed to gain ratio was decreased linearly (p < 0.001) and quadratically (p < 0.001) with the increasing RPAA supplementation, and the average daily gain was higher while feed to gain ratio was lower in RPAA than CON (p < 0.001). Meat color L* values and b* were decreased linearly (p < 0.01) with the increase of RPAA supplementation, and b* was lower in RPAA than CON (p < 0.05). Meat color a* value was increased linearly (p < 0.05) with the increasing RPAA supplementation, and a* was higher in RPAA than CON (p < 0.05). The 24 h drip loss and shear force were decreased quadratically (p < 0.01) with the increasing RPAA supplementation, and drip loss and shear force values were lower in RPAA than CON (p < 0.05). The glycine concentration in longissimus dorsi (LD) increased linearly (p < 0.05) with the increasing RPAA supplementation. These results demonstrated that both the growth performance and meat quality characteristics were improved in feedlot yaks as an effect of the dietary supplementation with RPL and RPM, and the medium supplementary level is recommended, since it showed the most promising results.

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