SKU: 82681200888

D-Lokus (d1)

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Description

D-Lokus (d1)Der D Lokus ist verantwortlich fr die Verdnnung der Fellfarbe. Bekannte Mutationen des MLPH Gens (Melanophilin) sind verantwortlich fr die meisten Flle von verdnnten Farben. Das MLPH Gen kodiert fr ein Protein Melanophilin, einen Schlsselbestandteil in der Bildung von Haar und Hautpigmenten. Eine Mutation im Gen verursacht die unsachgeme Verteilung von Melanosomen und die Verdnnung der Fellfarbe. Es hat einen Einfluss auf die Bildung von schwarzem

Der D-Lokus ist verantwortlich für die Verdünnung der Fellfarbe. Bekannte Mutationen des MLPH-Gens (Melanophilin) sind verantwortlich für die meisten Fälle von verdünnten Farben. Das MLPH-Gen kodiert für ein Protein Melanophilin, einen Schlüsselbestandteil in der Bildung von Haar- und Hautpigmenten. Eine Mutation im Gen verursacht die unsachgemäße Verteilung von Melanosomen und die Verdünnung der Fellfarbe. Es hat einen Einfluss auf die Bildung von schwarzem Eumelanin sowie rotem-gelbem Pheomelanin, jedoch in geringerem Maße. Die Verdünnung des schwarzen Pigments führt zu blauer oder grauer Fellfarbe, und die Verdünnung des braunen Pigments führt zu hellbraun oder Isabella. Der D-Lokus ist nicht nur für die Verdünnung des Fellpigments verantwortlich, sondern verdünnt auch das Pigment von Nase, Pfoten und Augen.

In unserem Labor testen wir 3 verschiedene Allele im MLPH-Gen, die für die Verdünnung der Fellfarbe verantwortlich sind:

  • Allele d1: ist verantwortlich für die Verdünnung der Fellfarbe bei vielen Hunderassen

  • Allele d2: ist vorhanden bei Chow-Chow, Sloughi, Thai Ridgeback und Französischer Bulldogge

  • Allele d3: ist vorhanden bei Chihuahua, Mudi, Pumi, Italienischem Greyhound, Pekinese, Shetland Sheepdog, Shih Tzu, Tibetmastiff und Yorkshire Terrier.

Bei einigen Hunderassen können mehrere verschiedene Mutationen gleichzeitig auftreten. Die Kombination von zwei Mutationen (d1/d2 oder d1/d3) führt ebenfalls zu einer verdünnten Farbe des Fells.

Genotyp

Beschreibung

D/D:

Der Hund trägt zwei Kopien des dominanten D-Allels und zeigt eine normale, nicht verdünnte Fellfarbe; der Hund wird immer eine Kopie des D-Allels an die Nachkommen weitergeben; alle Nachkommen werden eine normale, nicht verdünnte Fellfarbe zeigen.

D/d*(d1 oder d2 oder d3):

Der Hund trägt eine Kopie des dominanten D-Allels und eine Kopie des rezessiven d-Allels; der Hund ist heterozygot/Träger des d-Allels für die Farbverdünnung und zeigt eine normale, nicht verdünnte Fellfarbe; die Nachkommen haben eine 50%ige Wahrscheinlichkeit, das D-Allel zu erben, und eine 50%ige Wahrscheinlichkeit, das d-Allel zu erben.

d*/d*(d1 oder d2 oder d3):

Der Hund trägt zwei Kopien des rezessiven d-Allels und zeigt eine verdünnte Fellfarbe; der Hund wird immer eine Kopie des d-Allels an die Nachkommen weitergeben.

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SKU: 82681200888

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4.3 ★★★★★
Based on 16 reviews
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A
Verified Purchase
amanda bragg
San Leandro, US
★★★★★ 5
Good sturdy ball for aggressive chewer
Size: 4.5"
Nice heavy duty ball that my 7 yr old pitbull can chew on and not destroy it in 2 minutes. Wish that could get 3 for the cost but whatever. Nice bright colors . Good size that he won't choke on it .
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Reviewed in the United States on March 30, 2026
E
Verified Purchase
Edward Davidson
Pawtucket, US
★★★★★ 4
Great ball but poor squeaked design
Size: 4.5"
My Rottie loves these balls. The ball lasts a long time even though he plays hard and chews them. My biggest complaint is the squeaker disconnects easily from inside the ball, the glue does not hold! We have bought many of these balls because eventually the area where the squeaker is attached comes away from the ball leaving an open whole that causes the ball to eventually developed a long crack at which point it no longer is able to be thrown nor is is fun for him any longer.
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Reviewed in the United States on December 19, 2025
A
Verified Purchase
A. Estrella
Birmingham, US
★★★★★ 5
Well made and great fun for our Pittie
Size: 4.5"
My pittie loves these! They are way thicker than others. He has learned how to chew on the spikes. Seems like a good teeth cleaning too. Yes, the squeaker breaks! That is a great thing!! With his active chewing, that sound was driving us crazy after a while.
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Reviewed in the United States on February 19, 2026
D
Verified Purchase
Donald
Fort Morgan, US
★★★★★ 5
"Durable Fun: Pweituoet Heavy Duty Squeaky Dog Balls for Aggressive Chewers"
Size: 4.5"
Product Review: The Pweituoet 4.5” Heavy Duty Squeaky Dog Balls have been a hit with my dog, proving to be both durable and entertaining. Durability: These dog balls are impressively tough. My dog is an aggressive chewer, and most toys don’t last long, but these balls have held up exceptionally well. The heavy-duty material and spiked design are perfect for dogs who love to chew, providing both durability and safety. Entertainment: The built-in squeaker adds an extra layer of fun. It captures my dog’s attention immediately, and the squeak keeps him engaged for longer play sessions. The spikes also make the ball easy for him to grip and carry around. Size: The 4.5” size is ideal for medium to large dogs. It’s large enough to avoid being a choking hazard but still easy for my dog to pick up and play with. The size and weight are just right for games of fetch, too. Value: Given the durability and how much my dog enjoys these balls, they offer great value for the price. They’ve lasted much longer than other toys we’ve tried, making them a worthwhile investment for any dog owner with a tough chewer. Overall Verdict: The Pweituoet Heavy Duty Squeaky Dog Balls are an excellent choice for medium to large dogs, especially those who are aggressive chewers. They’re durable, fun, and well-sized, making them a great addition to your dog’s toy collection. Highly recommended!
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Reviewed in the United States on August 10, 2024
C
Verified Purchase
Chris Wells
Cuba, US
★★★★★ 5
Actually stands up to use
Size: 4.5", Size: 4.5"
I have a pitbull who is a toy destroyer. All those toys, even the ones that say tough enough for destroyers, never hold up. THESE BALLS ARE AWESOME! I bought the 2 pack of the 4.5 inch balls and they lasted a year. I literally am writing this review after ordering a new set. These are well worth the money and Ghost (my dog) loves them. Hes a 103lbs pitbull and his life mission is cuddles and destroying his toys... and these lasting a year of everyday use is friggin awesome. Both toys failed in the same way eventually. They gave out in a circle around the "squeker".
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Reviewed in the United States on September 14, 2024

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