All animals are sloughtered under stress...

Fevered animals are not suitable..

Hi DR.good question.The energy required for muscle activity in the live animal is obtained from sugars (glycogen) in the muscle. In the healthy and well-rested animal, the glycogen content of the muscle is high. After the animal has been slaughtered, the glycogen in the muscle is converted into lactic acid, and the muscle and carcass becomes firm (rigor mortis). This lactic acid is necessary to produce meat, which is tasteful and tender, of good keeping quality and good colour. If the animal is stressed before and during slaughter, the glycogen is used up, and the lactic acid level that develops in the meat after slaughter is reduced. This will have serious adverse effects on meat quality.

Article Meat and Meat Products Report 2003-2006

Hi dr

Hi Dear Haifa

The poor animal handling has adverse effects on the animal, carcass and meat quality. Poor quality animal and meat will have poor processing properties, functional quality, eating quality, and more likely to be unaccepted by consumers.

In Mini Review useful for you in title:

Effect of pre-slaughter animal handling on carcass and meat quality

http://www.ifrj.upm.edu.my/18%20(02)%202011/(3)%20IFRJ-2010-140.pdf

thanks for all

Dear Haifa

In the case of short-term acute stress produced lactic acid from the breakdown of glycogen, this result lower pH, lighter color and possibly tougher.

Thus, meat from animals, which have suffered from stress or injuries during handling, transport, and slaughter, is likely to have a shorter shelf life due to spoilage.

Please, read in the following link:

http://animalstudiesrepository.org/cgi/viewcontent.cgi?article=1019&context=acwp_faafp

Good Luck

Stress response generated by pre-slaughter management produces a decrease in liver glycogen reserves, generating a slower fall of post-mortem meat pH and faster establishment of rigor mortis. Therefore, stress response is highly correlated with meat quality. Maybe it´s useful for you this article from my research group:

https://www.researchgate.net/publication/274404686_The_effect_of_intermittent_feeding_on_the_pre-slaughter_fasting_response_in_rainbow_trout

Article The effect of intermittent feeding on the pre-slaughter fast...

Please take a look at these useful PDF attachments.

yes i think, what do you think DR. Zaid Imad Zaini ?

Yes, it can be used and it is preferable to perform some physical change of color