scholarly journals Ease of handling, physiological response, skin lesions and meat quality in pigs transported in two truck types

2016 ◽  
Vol 48 (3) ◽  
pp. 299-304 ◽  
Author(s):  
FA Dalla Costa ◽  
MJR Paranhos da Costa ◽  
L Faucitano ◽  
OA Dalla Costa ◽  
LS Lopes ◽  
...  
Keyword(s):  
Meat Quality ◽  
Physiological Response ◽  
Skin Lesions

scholarly journals The Impact of Grouping on Skin Lesions and Meat Quality of Pig Carcasses

Animals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 544 ◽  
Author(s):  
Bert Driessen ◽  
Sanne Van Beirendonck ◽  
Johan Buyse
Keyword(s):  
Meat Quality ◽  
Social Rank ◽  
Skin Lesions ◽  
Mixed Group ◽  
Comparable Amount ◽  
Aggressive Interactions ◽  
Pig Farm ◽  
Pig Carcasses ◽  
The Impact

In practice, unfamiliar pigs are frequently mixed prior to loading in order to obtain groups of uniform weight and to adjust the group size to the dimensions of the trailer compartments. Mixing pigs induces aggressive interactions to establish a new social rank. Fighting results in skin lesions and pre-slaughter stress and, in turn, reduced meat quality. A study was performed to compare the effect of non-regrouping and regrouping at fattening (at 80 kg and kept till slaughter), loading and lairage. A total of 1332 pigs were included over 30 transports from one pig farm to one slaughterhouse (110 km). Skin lesions were determined on 1314 carcasses. Meat quality was measured on 620 pigs. The non-regrouped pigs had fewer skin lesions and better meat quality than the pigs regrouped at loading or in lairage. Pigs mixed at 80 kg at the farm had, in general, a comparable amount of skin lesions and comparable meat quality as the non-mixed group. If mixing is unavoidable, due to large within-group weight variations, mixing at 80 kg can be an alternative to reduce skin lesions at slaughter and to optimise meat quality.

Using infrared thermography on farm of origin to predict meat quality and physiological response in cattle (Bos Taurus) exposed to transport and marketing

Meat Science ◽  
2020 ◽  
Vol 169 ◽  
pp. 108173
Author(s):  
Holly Cuthbertson ◽  
Garth Tarr ◽  
Kate Loudon ◽  
Sabrina Lomax ◽  
Peter White ◽  
...  
Keyword(s):  
Infrared Thermography ◽  
Meat Quality ◽  
Physiological Response ◽  
Bos Taurus ◽  
On Farm

Behavior, blood stress indicators, skin lesions and meat quality in pigs transported to slaughter at different loading densities

2021 ◽  
Author(s):  
Valentina Montoya Urrea ◽  
Ana Maria Bridi ◽  
Maria Camila Ceballos ◽  
Mateus J R Paranhos da Costa ◽  
Luigi Faucitano
Keyword(s):  
Meat Quality ◽  
Skin Lesions ◽  
Drip Loss ◽  
Southern Brazil ◽  
Stress Indicators ◽  
Blood Samples ◽  
Video Cameras ◽  
On Line ◽  
Sufficient Space ◽  
Lying Down

Abstract A total of 1,936 pigs were transported through 8 trips (8.4 ± 0.5 h) from two grow-to-finish farms to a commercial slaughter plant, all located in Southern Brazil. On each trip, a sub-sample of each load (36 barrows/load, weighing 118.9±9.8 kg) was randomly allocated into one of the following loading densities during transport: 200 kg/m² (D200), 235 kg/m² (D235), and 270 kg/m² (D270). Behavioral recordings of postures and activities were made during transportation and lairage using video-cameras. At slaughter, blood samples were collected to assess the concentrations of creatine kinase (CK) and lactate. Carcass weights and skin lesion scores were assessed on-line, and meat quality was evaluated in the longissimus thoracis (LT) muscle by assessing pH, color and drip loss. During transportation, the proportion of animals lying down was higher (P < 0.05) in D200 and D235 groups compared to D270. The proportion of sitting animals during transportation was higher (P < 0.01) in D270 compared to D200. In lairage, D200 and D235 pigs stood more compared to D270 (P = 0.01), while the proportion of lying pigs was higher (P = 0.02) for D270 pigs compared to D200 and D235. The frequency of drinking bouts in lairage was higher (P < 0.05) for D200 group compared to D235 and D270. The levels of CK were lower (P < 0.05) in D200 pigs transported compared to D270. Lesion scores tended to be higher (P = 0.06) in D270 carcasses compared to D200 and D235. A tendency for lower (P = 0.10) pH1 values in the LT muscle of D270 pigs compared with D200 pigs was also found. Based on the results of this study, the application of lower loading densities (≤ 235 Kg/m²) in the truck allows pigs to have sufficient space to rest, travel more comfortably and arrive less fatigued at the slaughter plant.

scholarly journals The Influence of Pre-Mortem Conditions on Pale, Soft and Exudative (PSE) and Dark, Firm and Dry (DFD) Pork Meat

2016 ◽  
Vol 66 (2) ◽  
pp. 172-186 ◽  
Author(s):  
Nikola Čobanović ◽  
Nedjeljko Karabasil ◽  
Silvana Stajković ◽  
Nevena Ilić ◽  
Branko Suvajdžić ◽  
...  
Keyword(s):  
Meat Quality ◽  
Low Temperatures ◽  
Detrimental Effect ◽  
Stocking Density ◽  
Skin Lesions ◽  
Negative Influence ◽  
Quality Parameters ◽  
Transport Vehicle ◽  
Welfare Quality ◽  
Pig Carcasses

Abstract The aim of this study was to determine the effect of gender, stocking density in the transport vehicle, lairage time and season on the incidence of skin lesions on pig carcasses and PSE and DFD meat. Skin lesions on carcasses (480, in total) were assessed according to the Welfare Quality® protocol (2009). The pH and temperature measurements were performed 45 minutes after slaughter. The group of carcasses with skin lesions score 2 had significantly higher incidence of PSE and DFD meat compared to the groups of carcasses with skin lesions score 0 and 1. With regard to gender, there were no differences in meat quality parameters, as well as for the incidence of skin lesions and PSE and DFD meat. The results showed that a space allowance lower than 0.3 m2/100 kg and higher than 0.5 m2/100 kg pig had a detrimental effect to animal welfare and meat quality. Lairage time affected meat quality parameters, incidence of skin lesions score and PSE and DFD meat, where after long lairaging (> 17 h) mean pH45 and t45 values became significantly higher, as well as the incidence of skin lesions and DFD meat. After short lairaging (< 1 h) mean pH45 value became significantly lower, while mean t45 value and the incidence of PSE meat became significantly higher. A significantly higher number of skin lesions on the carcass were observed in winter compared to all other seasons. High temperatures during summer and low temperatures during winter had a negative influence on meat quality parameters and incidence of PSE and DFD meat.

scholarly journals Physiological response and carcass and meat quality of suckling lambs in relation to transport time and stocking density during transport by road

animal ◽  
2010 ◽  
Vol 4 (2) ◽  
pp. 250-258 ◽  
Author(s):  
J. De la Fuente ◽  
M. Sánchez ◽  
C. Pérez ◽  
S. Lauzurica ◽  
C. Vieira ◽  
...  
Keyword(s):  
Meat Quality ◽  
Physiological Response ◽  
Stocking Density ◽  
Transport Time

Optimising pig welfare during transport, lairage and slaughter

2021 ◽  
pp. 247-278
Author(s):  
Luigi Faucitano ◽  
◽  
Antonio Velarde ◽  
Keyword(s):  
Best Practices ◽  
Meat Quality ◽  
Physiological Response ◽  
Economic Losses ◽  
Ambient Conditions ◽  
Pork Industry ◽  
Research Findings ◽  
The Impact

Preslaughter practices, such as transport, handling and slaughter, can affect the welfare of pigs, and carcass and meat quality both individually and additively. Poor transport conditions and handling may result in loss of profits due to animal losses, carcass downgrading and meat quality defects. These economic losses are limited when the design of trucks is improved, the recommended transport, handling, stunning and slaughter practices are applied and the ambient conditions are controlled. The objective of this chapter is to overview research findings on the effects of transport, handling and slaughter practices on behavioral and physiological response, and carcass and meat quality in pigs, and to provide recommendations about the best practices aimed at limiting the impact of these factors on the pork industry economy.

scholarly journals The Effects of Environmental Enrichment on the Physiology, Behaviour, Productivity and Meat Quality of Pigs Raised in a Hot Climate

Animals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 235 ◽  
Author(s):  
Emma Fàbrega ◽  
Míriam Marcet-Rius ◽  
Roger Vidal ◽  
Damián Escribano ◽  
José Joaquín Cerón ◽  
...  
Keyword(s):  
Meat Quality ◽  
Environmental Enrichment ◽  
Skin Lesions ◽  
Control Group ◽  
Positive Effects ◽  
Hot Climate ◽  
Health Performance ◽  
Production Conditions ◽  
Stimulation Of

Some positive effects regarding the use of enrichment material on the stimulation of pig exploration and a reduction in redirected behaviour was reported. This study aims to evaluate the effects of four enrichment materials on the behaviour, physiology/health, performance and carcass and meat quality in pigs kept in Spanish production conditions. Ninety-six male pigs (six pigs/pen) ranging from 70 to 170 days old were used. Chains were used for the control group (CH), and wooden logs (W), straw in a rack (S) or paper (P) were also used. The pigs were subjected to two pre-slaughter treatments: 0 or 12 h of fasting. Their behaviour was observed for 12 weeks using scan and focal sampling. Samples of the Neutrophil: Lymphocyte (N:L) ratio and lactate were obtained from the pigs at 66 and 170 days old. Saliva samples for Chromogranin-A (CgA) were obtained at 67, 128, 164 and 170 days old. The weight, skin lesions and feed intake of the pigs were recorded. S triggered more exploratory behaviour than W and CH (P < 0.001). Skin lesions and redirected behaviour were lower for pigs with S (P < 0.01 and P < 0.05, respectively). The pigs offered S presented lower CgA after no fasting than pigs with P or CH (P = 0.055). Lactate was higher in pigs with W and CH treatments, regardless of fasting (P < 0.05). The N:L ratio increased over time (P < 0.05). No other significant effects were found. Overall, straw in a rack was the enrichment material that enhanced pig inherent behaviour.

Fine Structural Alterations in Thyroid Follicular Cells (FC) and Changes in Serum Thyroxine Produced by Feeding Polychlorinated Biphenyl (PCB) to Rats

1977 ◽  
Vol 35 ◽  
pp. 498-499
Author(s):  
W.T. Collins ◽  
Charles C. Capen ◽  
Louis Kasza
Keyword(s):  
Feed Efficiency ◽  
Polychlorinated Biphenyl ◽  
Serum Proteins ◽  
Skin Lesions ◽  
Hepatic Necrosis ◽  
Ultrastructural Changes ◽  
Lymphoid Tissues ◽  
Heat Transfer Fluids ◽  
Thyroid Follicular Cells ◽  
Peripheral Metabolism

The widespread contamination of the environment with PCB, a compound used extensively by industry in hydraulic and heat transfer fluids as well as plasticizers and solvents in adhesives and sealants, has resulted in detectable tissue levels in a large portion of the human population, domestic animals, and wildlife. Intoxication with PCB produces severe hepatic necrosis, degeneration of lymphoid tissues and kidney, skin lesions, decreased reproductive performance, reduced feed efficiency, and decreased weight gain. PCB also has been reported to reduce the binding of thyroid hormone to serum proteins and enhance the peripheral metabolism of thyroxine with increased excretion of thyroxine-glucuronide in the bile (Bastomsky, Endocrinology 95: 1150-1155, 1974).The objectives of this investigation were (1) to investigate the histopathologic, histochemical, and ultrastructural changes in thyroid FC produced by the acute (4 week) and chronic (12 week) administration of low (50 ppm) and high (500 ppm) doses of PCB to rats, (2) to correlate these alterations to changes in serum immunoreactive thyroxine concentration, and (3) to investigate the persistence of the effects of PCB on the thyroid gland.

Preliminary Report of a Comparative Study of Seminiferous Tubular Epithelium from Rats Flown on Cosmos 1887 and SL3

1988 ◽  
Vol 46 ◽  
pp. 276-277
Author(s):  
Walter J. Sapp ◽  
D.E. Philpott ◽  
C.S. Williams ◽  
K. Kato ◽  
J. Stevenson ◽  
...  
Keyword(s):  
Space Flight ◽  
Physiological Response ◽  
Preliminary Report ◽  
Complete Recovery ◽  
Environmental Constraints ◽  
Tubular Epithelium ◽  
Testicular Weight ◽  
Testicular Morphology ◽  
Normal Offspring ◽  
Rats And Mice

Space flight, with its unique environmental constraints such as immobilization, decreased and increased pressures, and radiation, is known to affect testicular morphology and spermatogenesis. Selye, summarized the manifestations of physiological response to nonspecific stress and he pointed out that atrophy of the gonads always occurred. Reports of data collected from two dogs flown in space for 22 days (Cosmos 110) indicate that there was an increase of 30 to 70% atypical spermatozoa when compared to ground based controls. Seventy-five days after the flight the abnormalities had decreased to the high normal value of 30% and mating of these dogs after this period produced normal offspring, suggesting complete recovery. Effects of immobilization and increased gravity were investigated by spinning rats and mice at 2x g for 8-9 weeks. A decrease in testicular weight was noted in spun animals when compared to controls. Immobilization has been show to cause arrest of spermatogenesis in Macaca meminstrins.

Sign in / Sign up

Export Citation Format

Share Document