Evidence map›Paper›PMID 39755637›Full record

ArticleJournal of animal science and biotechnology2025

Net energy of grains for dairy goats differed with processing methods and grain types.

Xiaodong Su, Lei Zhang, Yiyang Sun, Yanbo Wu, Jianrong Ren, Shengru Wu, Xinjian Lei, Jun Zhang, Dangdang Wang, Hao Ren and 1 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of animal science and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors.

Xiaodong SuCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Lei ZhangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Yiyang SunCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Yanbo WuCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Jianrong RenCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Shengru WuCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Xinjian LeiCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Jun ZhangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Dangdang WangCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Hao RenCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Junhu YaoCollege of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, China. yaojunhu2004@sohu.com.ORCID http://orcid.org/0000-0001-6318-6576

Funding

National Key Research and Development Program of China 2023YFE0111800Shaanxi Livestock and Poultry Breeding Double-chain Fusion Key Project 2022GD-TSLD-46-0501
6 · The paper itself

Abstract

backgroundThe diverse types and processing methods of grains intricately influence the sites and digestibility of starch digestion, thereby impacting energy utilization. This study aimed to explore the impact of grain variety and processing methods on the net energy (NE) in dairy goats, analyzing these effects at the level of nutrient digestion and metabolism.

methodsEighteen castrated Guanzhong dairy goats (44.25 ± 3.59 kg BW) were randomly divided into 3 groups, each consisting of 6 replicates. The substitution method was employed to determine the NE values of the dry-rolled corn (DRC), dry-rolled wheat (DRW) or steam-flaked corn (SFC, 360 g/L). Briefly, two phases were performed. Throughout the basal phase, all goats were fed the same basal diet. In the substitution phase, 30% of the basal diet was replaced with DRC, DRW and SFC, respectively.

resultsIn this study, the NE values of the DRC, DRW and SFC were 7.65, 7.54 and 7.44 MJ/kg DM, respectively. Compared to the DRC group, the DRW group showed increased digestibility of starch and crude protein (CP). Similarly, the SFC group exhibited increased organic matter (OM) and starch digestibility and a trend towards higher dry matter (DM) digestibility, reduced fecal OM and starch content. Additionally, fecal volatile fatty acid (VFA) concentrations decreased in goats fed SFC. Correspondingly, digestible energy (DE) in the DRW and SFC groups tended to be higher than in the DRC group. DRW increased total VFA concentration compared to DRC, while SFC increased the proportion of propionate and decreased the acetate-to-propionate ratio in the rumen. Both the DRW and SFC diets elevated serum glucose levels. Furthermore, heat increment (HI) and gaseous energy (GasE) related to fermentation were significantly higher in the DRW and SFC groups compared to the DRC group.

conclusionOur findings indicated that DRW and SFC increased rumen starch fermentation in goats, thereby improving total tract starch digestion and DE. However, DRW and SFC failed to improve NE value due to increased heat and gas energy production from fermentation. Therefore, excessively refined grains processing in the diet of dairy goats does not effectively improve energy efficiency.

Indexed as

Dairy goatsEnergy metabolismGrain typesProcessingStarch digestion

Identifiers

PMID39755637
PMCPMC11700460

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.