The effect of pre-slaughter stressors on physiological indicators and meat quality traits on Merino lambs

Zimerman, María; Domingo, E.; Grigioni, G.; Taddeo, H.; Willems, Priscila

doi:10.1016/j.smallrumres.2012.12.018

Cited by 15 publications

(10 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Increase in cortisol concentration has been associated with feed-deprivation stress in Merino lamb (Zimerman et al, 2013), which contrasts with the results of cortisol found in the present paper. However, cortisol levels can vary greatly as it is a time-dependent response with high individual variability and therefore, comparisons among studies must be done with caution.…”

Section: Effect Of Handling During Lairage On Animal Welfarecontrasting

confidence: 99%

Effect of space allowance during transport and fasting or non-fasting during lairage on welfare indicators in Merino lambs

Cózar

Rodríguez²,

Garijo

et al. 2016

Span. j. agric. res.

View full text Add to dashboard Cite

show abstract

Section: Effect Of Handling During Lairage On Animal Welfarecontrasting

confidence: 99%

Effect of space allowance during transport and fasting or non-fasting during lairage on welfare indicators in Merino lambs

Cózar

Rodríguez²,

Garijo

et al. 2016

Span. j. agric. res.

View full text Add to dashboard Cite

show abstract

“…Cortisol is commonly used to evaluate experimental situations involving animal welfare, as indicator of fear and excitement (Broom and Fraser, 2010). Stress stimulates the hypothalamic-adrenal cortex axis with subsequent release of cortisol (Zimerman et al, 2013, Chulayo et al, 2016. Cortisol in turn stimulates gluconeogenesis from amino acids and glycerol and elevates the blood NEFA concentrations (Lehninger, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…Cortisol in turn stimulates gluconeogenesis from amino acids and glycerol and elevates the blood NEFA concentrations (Lehninger, 2006). High concentrations of cortisol, in association with hunger due to long periods of fasting in pre-slaughter, lead to an increase in protein catabolism (Kannan et al, 2000;Zimerman et al, 2013). Therefore, the greater stimulation of gluconeogenesis in the treatment without CG might have resulted in similar glucose concentrations between the treatments.…”

Section: Discussionmentioning

confidence: 99%

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

et al. 2018

View full text Add to dashboard Cite

-This study evaluated the effects of crude glycerin (CG) supplied separately from the other dietary ingredients to goats during the feedlot and in the pre-slaughter lairage on the nutrient intake, performance, behavioral and physiological parameters, carcass characteristics, and meat quality. Twenty-eight uncastrated male goats from a cross between the Boer breed and mixed-breed goats were used in a completely randomized design in a 2 × 2 factorial scheme, consisting of the feedlot with or without CG inclusion in the diets (96.90 g kg -1 DM) and the pre-slaughter lairage, also with or without the ingredient. In the feedlot, goats fed CG had a lower intake of dry matter and nutrients. Crude glycerin intake reduced the weight gain and body weight of goats and increased feed conversion. Weights of carcass and cuts (leg, loin, ribs, and shoulder) were lower when the animals consumed CG in the feedlot. In pre-slaughter lairage, concentrations of cortisol were lower when the animals consumed CG. Characteristics of carcass and meat (pH, color, water holding capacity, cooking loss, and shear force) were not changed by the supply of CG during the pre-slaughter. When supplied during the feedlot period and separately from the other dietary ingredients, CG negatively affected the performance and carcass characteristics of goats without changing meat quality. In the pre-slaughter lairage, CG intake lowers the cortisol level and does not change the behavioral parameters or carcass and meat characteristics of goats.

show abstract

“…On the other hand, lairage allows animals to recover from the stress of transport and unloading, and consequently to improve meat quality (Rabaste et al, 2007). According to the results on lamb welfare blood indicators of our previous paper (Cózar et al, 2016) and of other authors (Zimerman et al, 2013), fasting during lairage could result stressful. In addition, feed deprivation during lairage would generate lower reserves of muscle glycogen and an increase of pH values of meat (Fisher et al, 2011).…”

Section: Meat Quality Phmentioning

confidence: 95%

Effect of space allowance during transport and fasting or non-fasting during lairage on carcass contamination and meat traits in Merino lamb

Vergara

Cózar

Rodríguez

et al. 2017

Span. j. agric. res.

View full text Add to dashboard Cite

A total of 72 Merino breed male lambs were used in this work, to study the effect of the space allowance during transport [(SA): low (SAL: 0.16 m 2 /animal; n=24); medium (SAM: 20 m 2 /animal; n=24); high (SAH: 0.30 m 2 /animal; n=24)], and the management during 18 h lairage [(TL): fasting (TL-FAST; n=36) vs feeding (TL-FEED; n=36)] on carcass microbial contamination (total viable count, Enterobacteriaceae and Pseudomonas) and meat quality. Carcasses contamination determination was carried out by swabbing (neck, flank and rump). Meat quality was assessed by pH, colour coordinates, drip loss (DL), shear force (SF) ad lipid oxidation. SA did not have effect on carcass microbiological quality. TL caused a significant effect on total viable count and Pseudomonas spp values. Flank was the most contaminated site. SAL-FEED group showed the highest values of drip loss and lipid oxidation. At 24 h post-mortem, pH values were the highest in fasted lambs. At 7 d post-mortem the lowest pH was found in SAM-FAST group while the highest in SAM-FEED. TL had no effect on SF, DL neither on lipid oxidation values. These results could help to meat industry to decide the best management as in the transportation as during lairage before lambs slaughter.Additional key words: sheep; transportation; pre-slaughter conditions; carcass-contamination; meat quality

show abstract

The effect of pre-slaughter stressors on physiological indicators and meat quality traits on Merino lambs

Cited by 15 publications

References 19 publications

Effect of space allowance during transport and fasting or non-fasting during lairage on welfare indicators in Merino lambs

Effect of space allowance during transport and fasting or non-fasting during lairage on welfare indicators in Merino lambs

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

Effect of space allowance during transport and fasting or non-fasting during lairage on carcass contamination and meat traits in Merino lamb

Contact Info

Product

Resources

About