# Studies of neuroendocrine mechanisms influencing seasonal variations in semen production and plasma hormone levels in rams

> 1976 doctoral thesis by Graham Keith Barrell at Massey University

**Wikidata**: [Q111965131](https://www.wikidata.org/wiki/Q111965131)  
**Source**: https://4ort.xyz/entity/studies-of-neuroendocrine-mechanisms-influencing-seasonal-variations-in-semen-production-and-plasma-hormone-levels-in-rams


## References

1. [Source](http://hdl.handle.net/10179/3850)