Selective breeding

Greyhounds are the oldest purebred dog. This ancient breed was originated in the Middle East and North Africa . Greyhounds were seen in carvings in old Egyptian tombs in 2900 B.C. Greyhounds were used by the Romans for chasing hares or small prey. Greyhounds made their way to America in the 1500s by Spain when they came on ships. Greyhounds were used by the Romans for chasing hares or small prey. They became popular in colonial times for chasing crop destroying jackrabbits. During the 1920s…

Introduction Selective breeding is the characteristics of an animal or plant. Selective breeding is done by the different characteristics, by the parents of the plant/animal/human of the baby. In this essay I’m going to talk about why you should and shouldn’t have a Maltese Shih Tzu as a pet and why. I will also talk about where they use selective breeding. The animal I’m focusing on is a Maltese Shih Tzu dogs. History The history behind the Maltese Shih Tzu is they started breeding in the…

of animals also occurs, and is generally done intentionally for various reasons. Animals can become inbred as a result of selective breeding for desirable traits. Animals in captivity face different selection pressures in comparison to those in the wild, as they are provided with optimal environmental conditions and have the natural ability to choose a mate removed. Breeding solely within a single captive population of animals eliminates the addition of different alleles to the gene pool and…

passed from one generation to the next. Careful cross breeding may lower the chances of passing on a particular condition if only one parent is a carrier.Keep in mind that many of today's purebred dogs were founded on crosses of different breeds, and they have been refined through selective breeding to produce the consistent characteristics they display today. Now it's time to consider some of the potentially negative aspects of cross breeding. Many cross breeders downplay the significance of…

Reserve genetics is a tool used to identify the functionality of a known gene sequence or a gene family by genetic editing to generate the mutant phenotype. As it is done in a direction from gene to phenotype, which is opposite to ‘forward genetics’, hence named as reverse genetics. As the whole genome sequences are much more accessible nowadays with various genome sequencing technologies developed. This enables modifying a known gene, and to create a known mutation. The mutated gene might then…

This class has made me question everything we have learned as zookeepers/animal lovers, honestly. I started thinking about how we breed animals, how we house them, and how we feed and clean them. The biggest change I have made personally is to not clean the entire ferret cage in one day. Since it is 4 stories, I now clean 2 stories at a time. I noticed that their behavior towards the clean section is different and they spend less time in it compared to the section that I did not clean. This…

The world we live in today is in no doubt constantly changing all thanks to the technological and scientific advancements. These advancements are what have led to the birth of molecular genetics which is the genesis of improvements in the field of agriculture. Food is a very crucial part of human survival, and while it may be abundant in many developed countries, the same cannot be said about the developing countries. A 2015 report by FAO on the state of food insecurity sates that there are…

The idea of genetically modified (GM) foods is laden with misconception from the public. For over two decades, the presence and use GM foods has grown dramatically. Being under strict regulatory control from its inception, GM foods have been able to feed a greater (and growing) world population and minimize certain aspects of ecological impact of the agricultural industry. The use of genetically modified foods benefits human beings and the environment, and should continue to be utilized with its…

unconditionally. We welcome them into our home and family and give them love and attention, which they kindly give in return. However, some people only think of dogs as a way to make profit, in a place called a puppy mill. A puppy mill is a commercial dog breeding facility where profit is placed above the well being of the dogs. Puppy mills should be illegal in the United States because of the horrendous conditions, illnesses and behavioral issues it causes, and negative environmental conditions…

An adorable puppy is heard to resist. Their sweet eyes, soft fur, and wiggly tails can brighten anyones day. One lick on the cheek and your heart melts. But have you ever given thought to where that sweet puppy came from? If you are at a pet store, chances are that puppy came from a puppy mill. A puppy mill is where dozens, and sometimes even several hundred dogs are kept in unimaginable conditions. They are kept in stacked, cramped wire cages, covered in their own filth. Many are sick,…