Sire Detail - BUL 18403 (Morgan)

We purchased Morgan from Red Barn Katahdins (BUL) in Iowa and are looking forward to seeing what he can do on our farm. He is a 2018 ram lamb so these will be the first lambs that he produces.


He has excellent growth and maternal traits, and should do a great job increasing milk production in his ewe lambs. His carcass traits and parasite resistance has not been evaluated so we will have to wait until we test his lambs to see how he does.

Note: The registration paper is incorrect, it states twin but is actually a triplet. We are waiting for the corrected paperwork.

Basic Detail



Birth Type


Codon 171



CMG 14081


BUL 12603

Below we show his NSIP (National Sheep Improvement Program) EBVs (Estimated Breeding Values).

We realize that not everybody is familiar with this.

NSIP Detail

ID 6400282018BUL403

* Data at NSIP link is updated less frequently.

Values in parenthesis below indicate where the value preceding it falls in the NSIP percentile report. 

E.g. WWT 2.3 (15%) : This value is in the top 15% in NSIP for WWT, about 15% of animals have a WWT that is equal or better than this value and 85% of animals have a WWT that is worse than this value.

Data Date

# Offspring

# Flocks





0.461 (95%)



2.794 (4%)


5.675 (2%)

Parasite Resistance



Not measured

Not measured




Not measured

Not measured



1.661 (1%)


7.4% (55%)


18.3% (15%)

Hair Index

111.56 (2%)

This will be the first time we use BUL 18403 (Morgan)

Remember, the lambs get 50% of their genetics from the ram

Percentile Summary

The Radar Chart below provides an overview of where the sire EBVs are ranked on the NSIP percentile report. The 0th band is the top performing and 100th band is the bottom performing, the 50th band is the median. What is best depends on what you are looking for and what the performance of your ewes are, e.g. we do not try to maximize the NLB (number of lambs born), the 90th percentile of NLB results in about a 200% lambing rate, very high NLB is hard to support in a 100% grass/forage management system.

NSIP EBV Percentiles - BUL 18403

NSIP (National Sheep Improvement Program) Acronyms / Nomenclatures

  • BWT - Birth Weight (Top / 0th percentile is lowest BWT)

  • WWT - Weaning Weight (Top / 0th percentile is highest WWT)

  • PWWT - Post Weaning Weight (Top / 0th percentile is highest PWWT)

  • WFEC - Weaning Fecal Egg Count (Top / 0th percentile is lowest WFEC)

  • PFEC - Post Weaning Fecal Egg Count (Top / 0th percentile is lowest PFEC)

  • PFAT - Post Weaning Fat Depth (Top / 0th percentile is lowest PFAT)

  • PEMD - Post Weaning Eye Muscle Depth (Top / 0th percentile is largest PEMD)

  • MWWT - Maternal Weaning Weight (Top / 0th percentile is highest MWWT)

  • NLB - Number of Lambs Born (Top / 0th percentile is largest NLB)

  • NLW - Number of Lambs Weaned (Top / 0th percentile is largest NLW)

  • Hair Index - (Top / 0th percentile is highest Hair Index)

* NSIP ranking for EBVs are based on the July 2018 percentile report. Learn more.