This is a draft schedule. Presentation dates, times and locations may be subject to change.
550
The Application of Trichoderma Fermentation Extract to Growing and Finishing Rations Improved Beef Cattle Performance
Sunday, July 9, 2017
Exhibit Hall (Baltimore Convention Center)
Ousama AlZahal, AB Vista, Marlborough, United Kingdom
Audie Waite, Agri Research Centre Inc., Canyon, TX
Nicola D. Walker, AB Vista, Marlborough, United Kingdom
Tim Byrd, Feedworks USA Ltd, Cincinnati, OH
David Bechtol, Agri Research Centre Inc., Canyon, TX
The objective of this study was to evaluate the effect of pre-treating beef cattle ratios with a
Trichoderma fermentation extract (VistaPre-T; AB Vista, UK) on the performance of beef cattle during cattle growing and finishing phases. Predominantly Angus cross heifers (n=360, BW=248±18 kg) were blocked by their initial BW and assigned randomly to 1 of 4 treatments: 0, 0.5, 0.75, and 1 ml of VistaPre-T/kg of DM. VistaPre-T was applied to the ration during the mixing process. The ration was offered ad libitum and comprised of steam-flaked corn, chopped alfalfa hay, and dried distillers grains. Body weight was measured every 30 d. The offered DMI was measured daily and averaged every 30 d. Animals were shipped to slaughter in two blocks on d 216 and d 238. Statistical analysis was conducted using Proc mixed of SAS (v. 9.4) with treatment as the fixed effect. Results were presented in Table 1. During the growing phase (d1 to d60), the application of VistaPre-T linearly increased BW, ADG, and F:G. Additionally, the application of VistaPre-T linearly increased both the final BW and the overall ADG and quadratically increased the overall F:G. In conclusion, the application of
Trichoderma fermentation extract, VistaPre-T, directly to growing and finishing rations improved the performance and feed efficiency of beef cattle.
|
Trichoderma extract ml/kg DM
|
SE
|
P vale
|
Item
|
0
|
0.5
|
0.75
|
1
|
Linear
|
Quad
|
0 vs. 0.5
|
0 vs. 0.75
|
0 vs. 1
|
BW d 61
|
330
|
332
|
335
|
336
|
2
|
0.00
|
0.78
|
0.39
|
0.03
|
0.01
|
Final live BW, kg
|
563
|
572
|
574
|
576
|
4
|
0.02
|
0.37
|
0.11
|
0.05
|
0.02
|
ADG, kg/d
|
|
|
|
|
|
|
|
|
|
|
d 1-30
|
1.27
|
1.37
|
1.44
|
1.46
|
0.04
|
0.00
|
0.25
|
0.05
|
0.00
|
0.00
|
d 1-61
|
1.35
|
1.38
|
1.43
|
1.44
|
0.03
|
0.00
|
0.78
|
0.39
|
0.03
|
0.01
|
d 1-end
|
1.39
|
1.44
|
1.44
|
1.46
|
0.02
|
0.01
|
0.36
|
0.05
|
0.04
|
0.01
|
DMI, kg/d
|
|
|
|
|
|
|
|
|
|
|
d 1-30
|
8.06
|
7.96
|
8.16
|
8.14
|
0.20
|
0.63
|
0.84
|
0.71
|
0.73
|
0.79
|
d 1-61
|
8.64
|
8.44
|
8.64
|
8.61
|
0.20
|
0.90
|
0.66
|
0.48
|
1.00
|
0.92
|
d 1-end
|
8.72
|
8.59
|
8.67
|
8.81
|
0.12
|
0.54
|
0.28
|
0.43
|
0.78
|
0.63
|
F:G
|
|
|
|
|
|
|
|
|
|
|
d 1-30
|
6.47
|
5.80
|
5.72
|
5.62
|
0.23
|
0.02
|
0.22
|
0.05
|
0.03
|
0.01
|
d 1-61
|
6.42
|
6.14
|
6.13
|
5.97
|
0.16
|
0.06
|
0.70
|
0.22
|
0.19
|
0.05
|
d 1-end
|
6.27
|
6.02
|
6.02
|
6.06
|
0.07
|
0.05
|
0.04
|
0.01
|
0.02
|
0.04
|