What does this research mean for the field?

Sipli sheep exhibit significant sexual dimorphism, and their growth, wool production, and reproductive performance are significantly influenced by environmental factors such as season and year of birth. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the morphometric, productive, and reproductive characteristics of Sipli sheep to establish baseline parameters for breed management and genetic improvement.

August 27, 2026PLoS ONEOpen Access

Evaluation of morphometric traits and productive and reproductive performance of Sipli sheep in Punjab, Pakistan

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Authors

ARAqsa Rubab MLMushtaq Hussain Lashari MKMusarrat Abbas KhanIslamia University of Bahawalpur

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Implication

Observational study reveals significant sexual dimorphism and seasonal reproductive variations in Sipli sheep, indicating key baseline metrics for selective breeding programs.

Key Points

To evaluate the morphometric, productive, and reproductive characteristics of Sipli sheep to establish baseline parameters for breed management and genetic improvement.
Assessed morphometric dimensions in 35 rams and 47 ewes, bi-annual wool traits across seasons (n = 33), milk yield and composition (n = 14 ewes), and reproductive parameters over spring and autumn seasons in 2021 and 2022.
Applied descriptive statistics, Pearson's correlation, ANOVA with Duncan's multiple range test, and four non-linear growth models (Brody, Von Bertalanffy, Gompertz, and Logistic).
Rams exhibited significant sexual dimorphism and strong correlations between body length and diagonal body length (r = 0.814, p < 0.001) as well as height at withers (r = 0.774, p < 0.001), with the Brody model providing the optimal growth curve fit (R²adj = 0.6267, RMSE = 14.941).
Rams had higher medullated fiber content than ewes (19.27% vs. 12.56%), autumn wool had thicker fiber diameters (34.94 µm), pregnancy rates shifted from 78.00% (spring 2021) to 53.06% (autumn 2021), and the highest lambing rate was 143.48% (spring 2022).

Cite This Study

Rubab et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe9c910c91c1e92621bec https://doi.org/10.1371/journal.pone.0355695

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Implication

Observational study reveals significant sexual dimorphism and seasonal reproductive variations in Sipli sheep, indicating key baseline metrics for selective breeding programs.

Evaluation of morphometric traits and productive and reproductive performance of Sipli sheep in Punjab, Pakistan

Discussion

Member takes

Implication

Key Points

Cite This Study

Evaluation of morphometric traits and productive and reproductive performance of Sipli sheep in Punjab, Pakistan

Discussion

Member takes

Implication

Key Points

Cite This Study

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