ArticleThe Canadian veterinary journal = La revue veterinaire canadienne2025
Ewe litter size and lamb birth weight: Effects on lamb health, performance, and carcass traits.
Article in The Canadian veterinary journal = La revue veterinaire canadienne, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Identification ofFrontiers in veterinary science · 2026Article
- Optimizing pregnant mare serum gonadotropin dosage for reproductive efficiency and lamb survival in Dorper × Assaf ewes during the non-breeding season.Veterinary world · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: A retrospective analysis was conducted using data from a large commercial sheep operation to determine if selection for larger litter sizes affected lamb birth weight, health, and performance. Animals and procedure: Data on lamb health, performance, and carcass traits were collected during 2 vaccine trials conducted at a large commercial sheep operation. Data from each trial were analyzed for simple associations between ewe litter size, lamb birth weight, and lamb health, growth performance, and carcass traits. Results: Increased litter size was associated with decreased lamb birth weight, and both were associated with higher mortality rates, including starvation and enteritis, and poorer growth performance and carcass traits. Conclusion and clinical relevance: Increasing ewe prolificacy can reduce lamb birth weight, growth performance, and carcass traits and increase mortality losses. Veterinarians and sheep producers should consider the negative effects of selecting breeds with very large litter sizes when trying to optimize the production of lamb meat per ewe per year.
Indexed as
Identifiers
40786727PMC12330791What OpenQuestion holds
Registered trials
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.