scholarly journals Slaughter performance and meat quality of Milanino chickens reared according to a specific free-range program

2018 ◽  
Vol 97 (4) ◽  
pp. 1148-1154 ◽  
Author(s):  
F. Mosca ◽  
L. Zaniboni ◽  
S. Stella ◽  
C.A. Kuster ◽  
N. Iaffaldano ◽  
...  
Keyword(s):  
Meat Quality ◽  
Free Range ◽  
Slaughter Performance

A comparison of slaughter performance and meat quality of pigs immunised with a gonadotrophin-releasing factor vaccine against boar taint with physically castrated pigs

2012 ◽  
Vol 52 (10) ◽  
pp. 911 ◽  
Author(s):  
Y. L. Yuan ◽  
J. L. Li ◽  
W. H. Zhang ◽  
C. Li ◽  
F. Gao ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Meat Quality ◽  
Subcutaneous Fat ◽  
Boar Taint ◽  
Inosine Monophosphate ◽  
Slaughter Performance

The objective of this study was to evaluate the effect of vaccination against gonadotropin-releasing factor (GnRF) on carcass characteristics and meat quality and back fat quality. In total, 400 healthy male pigs were randomly assigned into two treatment groups: physically castrated males (CM) and vaccinated males (IM). CM pigs were physically castrated within 3 days of age. IM pigs received the GnRF vaccine twice, at 14 and 21 weeks of age. At the end of the experiment, 20 pigs of each treatment were weighed individually and slaughtered at 25 weeks of age. The longissimus muscle was collected to evaluate the meat quality including pH, drip loss, shear force, cooking loss, intramuscular fat, fatty acid composition and inosine monophosphate. Subcutaneous fat was sampled to evaluate fatty acid composition. IM pigs had a lower dressing percentage and were leaner (P < 0.01). The inosine monophosphate content was higher in pork from IM pigs than from CM pigs (P < 0.05). IM pigs had a higher content of polyunsaturated fatty acids in longissimus muscles than CM pigs (P < 0.01), mostly because of the higher linoleic acid content (P < 0.01). IM pigs had higher levels of unsaturated fatty acids in subcutaneous fat than CM pigs (P < 0.01), mostly because of the higher linoleic acid and linolenic acid (P < 0.01) and the lower myristic acid content (P < 0.01). There were no adverse effects of the GnRF vaccine on slaughter performance and meat quality of pigs. These results suggest that GnRF vaccine administered to pigs increases the inosine monophosphate content in longissimus muscles and the content of polyunsaturated fatty acids in longissimus muscles and back fat. Consequently, vaccination with Improvac for boar taint control will provide a good alternative to physical castration of male pigs.

scholarly journals Growth and meat quality of three free-range chickens and commercial broiler under the same breeding conditions

2018 ◽  
Vol 40 (1) ◽  
pp. 39663 ◽  
Author(s):  
Azdinia Zidane ◽  
Adda Ababou ◽  
Sarra Metlef ◽  
Abdellatif Niar ◽  
Kaddour Bouderoua
Keyword(s):  
Meat Quality ◽  
Free Range ◽  
Commercial Broiler

scholarly journals Slaughter performance and meat quality of intact and castrated Washera sheep kept under feedlot condition

2017 ◽  
Vol 12 (41) ◽  
pp. 3072-3080 ◽  
Author(s):  
Gashu Melese ◽  
Urge Mengistu ◽  
Animut Getachew ◽  
Tadesse Dereje
Keyword(s):  
Meat Quality ◽  
Washera Sheep ◽  
Slaughter Performance

scholarly journals Do rearing system and free-range stocking density affect meat quality of chickens fed feed mixture with rapeseed oil?

2017 ◽  
Vol 62 (No. 4) ◽  
pp. 141-149 ◽  
Author(s):  
V. Skřivanová ◽  
E. Tůmová ◽  
M. Englmaierová ◽  
D. Chodová ◽  
M. Skřivan
Keyword(s):  
Meat Quality ◽  
Rapeseed Oil ◽  
Fatty Acid Content ◽  
Stocking Density ◽  
Live Weight ◽  
Basal Diet ◽  
Minor Effect ◽  
Cross Sectional ◽  
Free Range

Recently, consumers have paid an attention to animal-friendly meat. The aim of the study was to evaluate the meat quality of breast muscles in indoor and free-range chickens with respect to the stocking density of outdoor chickens (8.3 or 4.15 birds per m<sup>2</sup>) fed feed with rapeseed oil. The free-range chickens reached 96 and 97% of the final live weight of the indoor chickens and their feed : gain ratio was by 7 and 9% higher. The pasture intake had a small effect on the breast meat quality and was presumably associated with rapeseed oil in the basal diet which strongly influenced meat monounsaturated and polyunsaturated fatty acid content and reduced the effect of pasture. The free-range system and lower stocking density led to an increase in muscle fibre cross-sectional area and diameter and a higher meat shear force (P = 0.003). Concerning the meat sensory properties, the total acceptability of the meat of free-range chickens with a lower stocking density was found to be lower compared with the other groups.esults indicate a minor effect of the rearing system and free-range stocking density on chicken meat quality, and also that meat quality in experiments with free-range housing can be affected by a fat source in basal diet.

scholarly journals  Evaluation of fattening and slaughter performance and determination of meat quality in Złotnicka Spotted pigs and their crosses with the Duroc breed

2012 ◽  
Vol 57 (No. 3) ◽  
pp. 95-107 ◽  
Author(s):  
K. Szulc ◽  
E. Skrzypczak ◽  
J.T. Buczyński ◽  
D. Stanisławski ◽  
A. Jankowska-Mąkosa ◽  
...  
Keyword(s):  
Meat Quality ◽  
Muscle Thickness ◽  
Raw Material ◽  
Backfat Thickness ◽  
Meat Production ◽  
Genetic Groups ◽  
Slaughter Performance ◽  
Colour Parameters ◽  
Processed Products

The study aimed at an evaluation of fattening and slaughter performance as well as meat quality of the native Złotnicka Spotted (ZS) pigs and its crosses with Duroc pigs. The experimental material comprised 60 fatteners, divided into three genetic groups of 20 animals (100% ZS, 75% ZS and 50% ZS). The specific character of conservative breeding results in low values of fattening and slaughter performance traits observed in ZS breed. Among the analysed groups, animals with 100% share of ZS genes in their genotype were characterised by low daily weight gains (0.59 kg), considerable backfat thickness (34.96 mm), slight muscle thickness (48.05 mm), and low leanness (41.83%). These parameters were higher in both groups of crosses. Differences between the 100% ZS group and the 50% ZS group were significant for backfat thickness and highly significant for leanness. Acidity and colour parameters analysis showed that meat from all the genetic groups analysed was characterised by a good quality. The highest pH<sub>45 </sub>values were in the 75% ZS group, and meat from this group had the darkest colour (L* = 49.73) and the highest red colour share (a*&nbsp;=&nbsp;5.11). Statistical analyses showed that ZS breed retained its original traits through the years of breeding. It was confirmed that meat of Złotnicka Spotted breed is characterised by excellent quality. The results indicate that ZS and Duroc breeds crossing improves fattening and slaughter performance, while maintaining good meat quality in their crosses. Results of this study may also be used by breeders. They indicate that crosses of both the breeds kept in extensive breeding may be successfully used in high quality meat production. Pork from such animals may be a raw material for market niche production, such as regional products. The use of meat from crosses in meat processing may improve both quality of the processed products and efficiency of production based on the native Złotnicka Spotted breed. &nbsp;

Feedlot performance, carcass composition and meat quality of free-range reared pigs

1997 ◽  
Vol 77 (2) ◽  
pp. 225-232 ◽  
Author(s):  
A. P. Sather ◽  
S. D. M. Jones ◽  
A. L. Schaefer ◽  
J. Colyn ◽  
W. M. Robertson
Keyword(s):  
Meat Quality ◽  
Wholesale Price ◽  
Carcass Composition ◽  
Housing System ◽  
Feedlot Performance ◽  
Free Range ◽  
Housing Systems ◽  
Key Words Animal ◽  
Potential Benefits

The effects of the housing system (confinement versus free-range) and season (summer versus winter) on growth performance, carcass composition and meat quality were determined from commercial pigs with known NN genotype at the halothane locus. Free-range-housed pigs reared from 25 to 105 kg required 16 ± 1.2 (SEM) more days to reach market weight compared with confinement-housed pigs. Housing did not affect feed requirements during the summer, but food consumption increased by 13.7% for free-range pigs during the winter. Confinement-reared pigs had a 0.75 ± 0.28 kg heavier commercial carcass weight than free-range-reared pigs. While there was no difference in carcass fat thickness, muscle depth was 2.4 ± 1.02 mm greater in free-range-reared pigs with increased predicted lean yield from 59.1 ± 0.24% to 59.8 ± 24%. Free-range-reared pigs had heavier butts, loins and hams, and lighter bellies, which increased their wholesale carcass value by 2.9%. Furthermore, they had greater dissected lean in the picnic (2.0%) butt (4.0%), loin (4.5%) and ham (2.0%) with no compromise to pork quality. If the wholesale price is adjusted for the increased lean content of each cut by an additive or multiplicative model, apparent value was further increased to 5.7 or 8.1%. While these results suggest a beneficial effect on carcass merit when rearing hogs in outdoor facilities, they further suggest potential benefits to carcass grading using developing technologies that recognize differences in carcass conformation. Key words: Animal ethics, Landrace, carcass value, housing systems

scholarly journals Performance, carcass yield, and meat quality of free-range broilers fed wet grain corn silage

2006 ◽  
Vol 8 (2) ◽  
pp. 113-118 ◽  
Author(s):  
ESPB Saldanha ◽  
AA Mendes ◽  
CC Pizzolante ◽  
SE Takahashi ◽  
CM Komiyama ◽  
...  
Keyword(s):  
Meat Quality ◽  
Corn Silage ◽  
Carcass Yield ◽  
Free Range

scholarly journals Mast-, Schlachtleistung und Fleischqualität verschiedener Schweinerassen bei Stall- und Freilandhaltung (Kurzmitteilung)

2002 ◽  
Vol 45 (3) ◽  
pp. 247-253 ◽  
Author(s):  
D. Micklich ◽  
H.-D. Matthes ◽  
M. Hartung ◽  
H. Möhring
Keyword(s):  
Meat Quality ◽  
Short Communication ◽  
Quality Parameters ◽  
Pig Breeds ◽  
Slaughter Performance ◽  
Meat Colour ◽  
Outdoor Housing

Abstract. Title of the paper: Fattening, slaughter performance and meat quality of different pig breeds in indoor or outdoor housing (short communication) Relationships between outdoor housing and some meat quality parameters were investigated. Studies were carried out with the pig breeds Schwerfurter Fleischrasse, Deutsches Sattelschwein und Duroc. Fattening, slaughter performances and meat quality were compared by indoor or outdoor housing. Between different breeds in most parameters there were significant differences. Regarding the influence of outdoor housing with grazing the study showed improve results by meat quality parameters only in meat colour and water keeping.

scholarly journals Slaughter performance and meat quality of three Italian chicken breeds

2009 ◽  
Vol 8 (sup3) ◽  
pp. 228-230 ◽  
Author(s):  
Chiara Rizzi ◽  
Maristella Baruchello ◽  
Gian Maria Chiericato
Keyword(s):  
Meat Quality ◽  
Slaughter Performance ◽  
Chicken Breeds
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