Hair Sheep

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Introduction

Hair sheep are a breed of sheep characterized by their coat composed of more hair fibers than wool fibers, the characteristic in which they differ from domesticated wool sheep. It is currently estimated that hair sheep make up about 7-10% of the world sheep population.1 There are two classes of hair sheep: true hair breeds and composite breeds. True hair breeds originated from, and are found in tropical climates. True hair sheep have pure hair coats and exhibit the main characteristics of hair sheep such as parasite resistance, efficient reproduction, and slow growth. Composite breeds of hair sheep are crosses between pure hair breeds and wool breeds. They are characterized by their mix of hair breed characteristics and wool breed characteristics. Therefore, similar to wool breeds, on average composite breeds grow faster than hair breeds, have heavier muscle mass, and are less parasite resistant. Hair sheep belong to the taxonomic class Mammalia, that contains other domesticated wool sheep as well as all other mammals. Specifically, they belong to the subgroup Caprinae, which also contains goats and horned sheep. There are several species of hair sheep including the Barbados Blackbelly, the St. Croix, the Wiltshire Horn, the Katahdin, the Dorper, and the Royal White. These species are separated mostly by their origin location. However, some of these are composite breeds, and are therefore classified by the breeds bred together to create them.

Figure 1. Electron micrograph of the Ebola Zaire virus. This was the first photo ever taken of the virus, on 10/13/1976. By Dr. F.A. Murphy, now at U.C. Davis, then at the CDC.[1].


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Filename: PHIL_1181_lores.jpg
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Legend/credit: Electron micrograph of the Ebola Zaire virus. This was the first photo ever taken of the virus, on 10/13/1976. By Dr. F.A. Murphy, now at U.C. Davis, then at the CDC.
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Section 1 Genetics

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[1] Include some current research, with at least one image. Call out each figure by number (Fig. 1).

Sample citations: [1] [2]

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[3]

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[4]

Second citation of Ref 1: [1]

Here we cite April Murphy's paper on microbiomes of the Kokosing river. [5]

Section 2 Microbiome

Include some current research, with a second image.

Here we cite Murphy's microbiome research again.[5]

Conclusion

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References


Edited by [Author Name], student of Joan Slonczewski for BIOL 116, 2024, Kenyon College.