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Volume 4, Issue 2
J Fisheries Livest Prod
ISSN: 2332-2608 JFLP, an open access journal
Page 57
Livestock Nutrition 2016
July 21-22, 2016
conferenceseries
.com
July 21-22, 2016 Brisbane, Australia
2
nd
International Conference on
Livestock Nutrition
Apparent digestibility of canola meal nutrients using exogenous enzymes in broiler chickens
Julio Cezar Dadalt, Connie Gallardo
and
Messias Alves da Trindade Neto
University of Sao Paulo, Brazil
C
anolameal (CM) is an important ingredient in the feeding poultry. However, CMhas anti-nutritional factors that induce reduction
on nutrient digestibility. Exogenous enzymes in poultry diets could improve the nutritional value of some vegetable feedstuffs.
The objective of this study was to evaluate the apparent total tract digestibility (ATTD) of dry matter (DM), crude protein (CP),
apparent metabolizable energy (AME), ash, calcium (Ca), phosphorus (P) and neutral detergent fiber (NDF) in CM with or without
multicarbohydrase (MC) and phytase (Phy) supplementation using broiler chickens. Day-old male broilers (245) were allocated
to five treatments in a randomized complete design. Each treatment had seven replicate cages with seven broilers per replicate.
Reference corn diet was replaced by 30% of CM on ATTD determination. A completely randomized experimental design with a 2×2
(with or without MC and Phy) factorial treatment arrangement was used to determine the effects of enzymes. Data were submitted to
variance analysis using SAS 9.2. The ATTD of DM and AME improved (P<0.05) with isolate enzymes addition. Interaction (P<0.05)
was observed between enzymes on ATTD ash, CP, Ca and P and a trend (P=0.06) for NDF digestibility. For all nutrients and AME,
the treatments with enzymes showed higher digestibility coefficients than the control diet. The results confirmed that MC and Phy
combination in CM produces greater benefit for broiler chick compared to isolated enzymes.
julio@zootecnista.com.brEffects of sulfur on the nutrition value of DDGS for beef cattle
Liwen He, Qingxiang Meng, Hao Wu, Wanbao Chen
and
Liping Ren
China Agricultural University, China
T
o investigate the effects of sulfur on the nutrition value of DDGS for beef cattle,
in vitro
cultivation was conducted for 72 hours
with the rumen fluid collected from steers, setting different sulfur levels (0.346%, 0.692% and 1.038%) and various sulfur sources
(Na
2
SO
4
, Na
2
SO
3
, Na
2
S
2
O
3
and Na
2
S), monitoring the fermentation parameters (dry matter digestibility, gas production and its rate)
and model predicted indicators (organic matter digestibility, metabolizable energy, net energy, microbial protein, partitioning factor
and gas yield). The results showed that, high sulfur level (0.692% and 1.038%) only decreased (P<0.05) asymptotic gas production
(b), while different sulfur sources resulted in various parameters, more specifically, sulfur from Na
2
SO
4
and Na
2
S produced more gas
(P<0.05) with faster rate (P<0.01) of gas production than those of Na
2
SO
3
and Na
2
S
2
O
3
, while Na
2
SO
3
had the highest b and inverse
for Na
2
SO
4
(P<0.01), which tended (P=0.09) to produced lower total volatile fatty acids than the others; sulfur from Na
2
SO
4
and Na
2
S
also had a lower (P<0.01) DMD in 24 hours, MCP, PF24 and a higher (P<0.01) OMD, ME, NEm, NEg, GY24 than those of Na
2
SO
3
and Na
2
S
2
O
3
. These results suggest that DDGS with different sulfur content ranging from 0.346% to 1.038% have a similar feed value
and dietary sulfur source exerts a great effect on its nutrition value for beef cattle.
helw082@163.comJ Fisheries Livest Prod 2016, 4:2 (Suppl)
http://dx.doi.org/10.4172/2332-2608.C1.006