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Manual of farm animals; a practical guide to the choosing, breeding, and keep of horses, cattle, sheep, and swine. Animal industry; Horses; Cattle; Sheep; Swine. THE BBEEDING OF HORSES 125 mare.
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10 Farm Animal Hybrids You Didn't Know Existed - Modern Farmer
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A mule is a cross between a horse and a donkey. What other real hybrids among species exist? - Quora
Donkey vs. Mule vs. Hinny: A Look at the Differences - Helpful Horse Hints
Hinny - Wikipedia
Are Mules, Burros and Jackasses All Donkeys? | HowStuffWorks
10 Farm Animal Hybrids You Didn't Know Existed - Modern Farmer
Donkeys vs mules: How are they different? - India Today
Difference Between a Donkey and a Mule
How Donkeys Get Along With Other Species - The Open Sanctuary Project