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Table 4 Performance of broilers 144 h post-inoculation with Eimeria spp.

From: Dietary supplementation with free methionine or methionine dipeptide mitigates intestinal oxidative stress induced by Eimeria spp. challenge in broiler chickens

  

FI, kgc

BWG, kgd

FCRe

Mean

SE

Mean

SE

Mean

SE

UCf

NSh

0.470

0.011

0.295

0.009

1.593

0.016

dl-Meti

0.498

0.009

0.333

0.006

1.515

0.042

dl-MMetj

0.493

0.015

0.315

0.015

1.568

0.115

ECg

NS

0.428

0.006

0.183

0.009

2.378

0.108

dl-Met

0.420

0.009

0.213

0.003

1.987

0.047

dl-MMet

0.415

0.006

0.198

0.005

2.101

0.069

Main effects

 Challenge

UC

0.487a

0.007

0.314a

0.007

1.558b

0.038

EC

0.421b

0.004

0.198b

0.005

2.155a

0.064

 Diet

NS

0.449

0.010

0.239b

0.022

1.985a

0.157

dl-Met

0.459

0.016

0.273a

0.023

1.751b

0.094

dl-MMet

0.454

0.016

0.256ab

0.023

1.834ab

0.118

P-value

 Challenge

  < 0.0001

  < 0.0001

  < 0.0001

 Diet

 0.6033

 0.0038

 0.0190

 Challenge × Diet

 0.1487

 0.9062

 0.1155

  1. a,bMeans in the same column followed by different letters differ significantly by the Tukey test, P < 0.05. Results are presented as mean ± standard error, SE. Each cage was considered an experimental unit, n = 8. No mortality was observed during the experimental period
  2. cFI Feed intake. Performance data were calculated taking into consideration a period of 6 days, that is, the period of 144 h post-inoculation, PI with Eimeria spp.
  3. dBWG Body weight gain. Performance data were calculated taking into consideration a period of 6 days, that is, the period of 144 h post-inoculation, PI with Eimeria spp.
  4. eFCR Feed conversion ratio. Performance data were calculated taking into consideration a period of 6 days, that is, the period of 144 h post-inoculation, PI with Eimeria spp.
  5. fUC Unchallenged broilers
  6. gEC Eimeria-challenged broilers
  7. hNS non-supplemented diet
  8. idl-Met diet supplemented with free methionine, dl-methionine 99%
  9. jdl-MMet diet supplemented with methionine dipeptide, dl-methionyl-dl-methionine 95%