Evidence map›Paper›PMID 42073440›Full record

ReviewLife (Basel, Switzerland)2026

Nutritional Regulation of Reproductive Physiology in Ruminants: A Mechanistic Review.

Ting-Chieh Kang, Geng-Jen Fan, Hisn-Hung Lin, Kai-Fei Tseng, Ya-Chun Liu, Hsi-Hsun Wu

Abstract readReview
In one paragraph

Review in Life (Basel, Switzerland), 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

6 authors.

Ting-Chieh KangSouthern Region Branch, Livestock Research Institute, Ministry of Agriculture, Pingtung 912, Taiwan.ORCID 0009-0007-5294-167X
Geng-Jen FanTaiwan Livestock Research Institute, Ministry of Agriculture, Tainan 712, Taiwan.
Hisn-Hung LinSouthern Region Branch, Livestock Research Institute, Ministry of Agriculture, Pingtung 912, Taiwan.
Kai-Fei TsengSouthern Region Branch, Livestock Research Institute, Ministry of Agriculture, Pingtung 912, Taiwan.
Ya-Chun LiuSouthern Region Branch, Livestock Research Institute, Ministry of Agriculture, Pingtung 912, Taiwan.
Hsi-Hsun WuDepartment of Animal Science, National Chiayi University, Chiayi 621, Taiwan.ORCID 0000-0002-8836-8912

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Modern genetic selection for high productivity has created a physiological conflict in ruminants, where the metabolic demands of lactation compete directly with the energy requirements of reproduction. This review provides a mechanistic synthesis of how key nutritional factors modulate the endocrine and cellular pathways governing reproductive success in cattle and sheep. Negative energy balance (NEB), characteristic of the early postpartum period, suppresses the hypothalamic-pituitary-gonadal (HPG) axis by impairing the pulsatile secretion of gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH), mediated through reduced kisspeptin signaling, growth hormone (GH) resistance, and decreased circulating insulin, insulin-like growth factor-1 (IGF-1), and leptin. At the macronutrient level, excess rumen-degradable protein elevates blood urea nitrogen and impairs the uterine environment, while omega-3 polyunsaturated fatty acids inhibit prostaglandin F2α synthesis to support corpus luteum maintenance. At the micronutrient level, selenium, copper, and zinc are essential antioxidant cofactors protecting gametes and embryos from oxidative stress, while vitamins A, D, and E regulate gene expression in reproductive tissues. Furthermore, maternal nutrition during critical gestational windows programs the reproductive capacity of offspring through epigenetic modifications, with profound implications for long-term herd fertility. Understanding these nutritional-reproductive interactions is crucial for developing precision feeding strategies that optimize herd fertility, improve animal welfare, and ensure the economic sustainability of livestock management. A thorough understanding of these nutritional-reproductive interactions is essential for developing precision feeding strategies that optimize fertility in high-producing ruminants.

Indexed as

antioxidantscattlefetal programmingkisspeptinmetabolic hormonesnegative energy balancenutritional physiologyprecision feedingruminant reproductionsheep

Identifiers

PMID42073440
PMCPMC13117664

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.