There was no significant difference between slaughterhouses in frequency of pigs with tail injury when the full 6-point scale was analysed (P = 0.16) nor when the 2-point scale including 'no injury' and 'injury' was analysed (P = 0.92).
More recently, 23 commercial field trials (n = 6,660,569 pigs) were summarized and the frequency of dead pigs, nonambulatory pigs, and total transport losses at the processing plant were 0.25, 0.44, and 0.69% respectively.
However, there was no difference in frequency of injured pigs depending on the scale used in slaughterhouse B. If only pigs with half or less of the tail remaining were considered, the percentages were 1.5% and 1.9% slaughterhouse A and B respectively (Table 1).
The frequency of mutant Pig-a phenotypes was measured using flow cytometry for RBCs and RETs in blood samples obtained at necropsy (i.e., 72 hr following the last dose).
At normothermia, all 11 pigs tolerated a paced frequency of 140, seven pigs tolerated 160, and four tolerated 180 beats/min.
A new variable was created for the frequency of bringing breeding pigs onto the farm if the farmer was purchasing gilts and/or boars.
An increased frequency of runts, wasting pigs and mortality was observed during the period when herd A changed piglet supplier from herd B and the open market to herd Z during June to October in 2006.
This might reflect some fundamental differences between human, mouse and pig folliculogenesis and meiosis resulting in low frequency of aneuploidy in aged pigs.
Therefore, the aims of this study were to establish the frequency of N. coli in pigs raised under different conditions and to explore the zoonotic potential.
The estimated fundamental frequency of vibration in guinea pigs, cats and adult humans are 45, 38, and 13 kHz respectively [45], [46].
