Sire Detail - NWT 6041 (Chip)

This will be our second year using Chip. He produced lambs at Misty Oaks Farm (MOF) in 2017 and we purchased him for his has excellent parasite resistance. He was bred by Hound River Farm (NWT). Both these farms have been in NSIP for many years and using Chip in the same breeding group as our rams ensures that our EBV’s can be compared to lambs on other farms..

Chip has low growth but that does come with a really low birth weight. We bred Chip to some of Midnights 2017 ewe lambs last year and had lambs with excellent parasite resistance and good growth with more moderate birth weights from these pairings. We also found that Chip produces lambs with excellent loin eye depth.

Basic Detail



Birth Type


Codon 171



NWT 5082


NWT 5012

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

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 6400522016NWT041

* 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





-0.505 (0%)



0.031 (90%)


0.073 (90%)

Parasite Resistance



-88.37 (4%)

-99.46 (3%)




0.81 (95%)

0.68 (2%)



0.128 (55%)


9.3% (50%)


11.4% (45%)

Hair Index

104.6 (55%)

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 - NWT 6041

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.