Impact of Grain Processing on Energy in Dairy Goats
Author Information
Author(s): Su Xiaodong, Zhang Lei, Sun Yiyang, Wu Yanbo, Ren Jianrong, Wu Shengru, Lei Xinjian, Zhang Jun, Wang Dangdang, Ren Hao
Primary Institution: Northwest A&F University
Hypothesis
The study aimed to explore the impact of grain variety and processing methods on the net energy in dairy goats.
Conclusion
DRW and SFC improved starch digestion in goats but did not enhance net energy value due to increased heat and gas energy production.
Supporting Evidence
- The NE values of DRC, DRW, and SFC were 7.65, 7.54, and 7.44 MJ/kg DM, respectively.
- Goats fed the SFC diet showed a significant increase in starch and OM digestibility.
- The DRW group exhibited significantly greater starch digestibility than those in the DRC group.
- Both the DRW and SFC diets elevated serum glucose levels.
- Heat increment and gaseous energy related to fermentation were significantly higher in the DRW and SFC groups.
Takeaway
This study looked at how different types of grains and how they are processed affect the energy that dairy goats can use. It found that while some processing helps with digestion, it doesn't always mean the goats get more energy.
Methodology
Eighteen castrated Guanzhong dairy goats were divided into three groups and fed different grain types (DRC, DRW, SFC) with a substitution method to evaluate net energy.
Limitations
The study may not account for all variables affecting energy metabolism in dairy goats.
Participant Demographics
Eighteen healthy castrated Guanzhong male goats, average weight 44.25 kg.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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