Evidence map›Paper›PMID 42842041›Full record

ArticleTropical animal health and production2026

Culled sweet potato can effectively replace cassava chips for lactating dairy cows in tropical dairy production.

Chayapol Meeprom, Ruttanachira Ruttanaprasert, Pajaree Totakul, Nantakarn Jundee, Thitima Norrapoke, Ahkarapon Nunoi, Metha Wanapat, Thiwakorn Ampapon

Abstract read
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In one paragraph

Article in Tropical animal health and production, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Chayapol MeepromFaculty of Agriculture and Technology, Rajamangala University of Technology Isan, Surin Campus, Surin, 32000, Thailand.
Ruttanachira RuttanaprasertFaculty of Agriculture and Technology, Rajamangala University of Technology Isan, Surin Campus, Surin, 32000, Thailand.
Pajaree TotakulFaculty of Agricultural Technology, Kalasin University, Kalasin, 46000, Thailand.
Nantakarn JundeeFaculty of Agriculture and Technology, Rajamangala University of Technology Isan, Surin Campus, Surin, 32000, Thailand.
Thitima NorrapokeFaculty of Agricultural Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani, 12110, Thailand.
Ahkarapon NunoiFaculty of Agricultural Technology, Buriram Rajabhat University, Buriram, 31000, Thailand.
Metha WanapatTropical Feed Resources Research and Development Center (TROFREC), Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, 40002, Thailand.
Thiwakorn AmpaponFaculty of Agriculture and Technology, Rajamangala University of Technology Isan, Surin Campus, Surin, 32000, Thailand. ouiyaxx@hotmail.com.ORCID http://orcid.org/0000-0002-5540-0939

Funding

the Fundamental Fund (FF) project FF66-P1-130the Fundamental Fund (FF) project FRB650059/SRN/01-4
6 · The paper itself

Abstract

The aim of this study was to evaluate the effects of replacing cassava chips with culled organic sweet potato in concentrate diets on feed intake, rumen fermentation characteristics, estimated methane production, milk yield, and milk composition in dairy cows. Four multiparous Holstein Friesian cows (4 years of age; 325 ± 15 kg initial body weight) were assigned to a 4 × 4 Latin square design. The concentrate diets were formulated by progressively replacing the cassava chip fraction with culled organic sweet potato at levels of 0%, 33.3%, 66.6%, and 100%. Cows were fed concentrate twice daily (05:00 and 16:00 h) according to a concentrate-to-milk ratio of 1:2, while rice straw, minerals, and water were offered ad libitum. The experiment consisted of four 21-day periods. Feed intake was not affected by dietary treatments. Likewise, ruminal pH, temperature, ammonia-N, and blood urea nitrogen were not influenced by treatments. Total volatile fatty acid concentration decreased linearly at the highest replacement level (P < 0.05), whereas acetate, propionate, butyrate, and the acetate-to-propionate ratio were not affected. Estimated methane production decreased linearly with increasing levels of sweet potato inclusion (P < 0.05). Milk yield, fat-corrected milk, energy-corrected milk, protein, and solids-not-fat were not affected by dietary treatments. However, milk fat, total solids, and lactose increased with increasing sweet potato inclusion (P < 0.05). In conclusion, replacing cassava chips with culled organic sweet potato had no adverse effects on feed intake, rumen fermentation, or milk production, while reducing estimated methane production and improving selected milk composition parameters in lactating dairy cows.

Indexed as

Animal FeedIpomoea batatasManihotAnimal Nutritional Physiological PhenomenaAnimalsCattleDairyingDietFemaleFermentationLactationMethaneMilkRumenMethaneDairy cowsMethane emissionSweet potato

Identifiers

PMID42842041

What OpenQuestion holds

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Registered trials

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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.