Activity for Week 1 by HASNITA CHE HARUN

Among the most effective and popular mating systems among breeders is Artificial Insemination (Artificial Insemination) where it is one of the livestock breeding methods where female cows when in heat are mated without using a bull but by injecting frozen semen. This frozen semen is obtained from selected and high quality male breeds.

2023-10-12 04:48:55 UTC

2023-10-12 10:35:44 UTC

Selective breeding involves choosing animals with desirable traits and allowing them to reproduce, with the goal of passing these traits on to the next generation.

2023-10-12 12:43:51 UTC

One of the breeding options of mating system is linebreeding because linebreeding is a careful and systematic breeding strategy that, when done correctly, allows for the transmission of desirable traits while minimizing the risks associated with inbreeding. It is a valuable tool in animal breeding, particularly in livestock and pedigree animal breeding programs.

F22B0031

2023-10-12 15:23:41 UTC

The mating system is what we expect the outcome will be, and it is based on the objective of the breeding program. For example, if you want a cattle with high performance and a high market, by crossing an Angus and Simmental breeds can eliminate some of the less desirable traits and create an even better progeny, the SimAngus.

F22A0003

2023-10-13 06:18:29 UTC

One of the mating system practices is conventional breeding. Conventional breeding is a traditional method of breeding plants or animals where desirable traits are selected and propagated through successive generations. This process involves controlled mating of organisms with desired characteristics to produce offspring with the desired traits. First identification of genetically superior individuals are done and followed by mating between two superior individuals that are specially selected. To identify superior individuals required four main aspects which are a large number of animals, intensive recording system, analyse performance breeding value and estimate process.

F22A0005

2023-10-13 09:39:03 UTC

One of the mating process that I choose is Crossbreeding. For the crossbreeding process, two animals from different breeds or species with suitable traits we want in the offspring are chose and these selected animals to mate, which can happen naturally or through artificial insemination.The offspring born from this mating will inherit traits from both parent animals. Crossbreeding can be used to achieve specific goals, such as improving productivity or adaptation to different environments.The example of crossbreeding is the mule, a cross between a female horse and a male donkey.

F22A0014

2023-10-13 10:09:05 UTC

Backcrossing in crossbreeding schemes is the process of mating a crossbred animal (F1 generation) with one of the original parental breeds. This crossbreeding scheme helps bring back, or "cross back" some of the traits from the original breed into the crossbred population. The purpose is to keep the good qualities of the crossbred animal while adding specific traits from one of the original breeds by fine-tuning the characteristics of the crossbred animals.

F22A0001

2023-10-15 01:09:15 UTC

My choice is the two-breed rotational cross . In this system, two breeds are mated and the resulting female offspring are kept as replacements and mated to one of the breeds. And then in the following generations, females are bred to the opposite breed of their sire.

F22B0037

2023-10-15 02:28:13 UTC

The breeding systems that i choose is purebreeding(inbreeding).
Inbreeding is mating of animals that are closely related genetically (for example, parent and offspring, full brother and sister or half brother and sister). So technically, inbreeding is defined as the mating of animals more closely related than the average relationship within the breed or population concerned. To do inbreeding mating we must do inbreeding coefficient of a pedigree first then after that you can conduct the mating. For simple understanding inbreeding methods typically involve selection of parental stock,mating,evaluation and the last steps is repeating inbreeding until reach the desired traits.

F22A0018

2023-10-15 03:46:23 UTC

One of the mating system is crossbreeding that involves mating individuals from different breeds or population to produce offspring with desirable traits. It tries to blend the strengths of several breeds, resulting in better performance or fitness in offspring as a result of crossbreeding. Crossbreeding is conducted by selecting parent breeds based on desired features and compatibility. Each breed may differ in terms of disease resistance, growth rate, milk production, or temperament.

F22B0057

2023-10-15 06:56:20 UTC

Mating systems refer to the way individuals within a population or species come together for the purpose of reproduction. There are several different mating systems observed in the animal kingdom, each with its own unique characteristics. For example monogamy, polygamy, and promisciuty. For this activity I choose monogamy. Monogamy is a form of sexual bonding involving an exclusive pair bond between two individuals. One of the mating process that I choose in monogamy is incubation. Both the male and female take turns incubating the eggs, with each taking 4-5 hour shifts. This shared parental responsibility is a characteristic of monogamous mating systems.

F22B0066

2023-10-15 07:09:02 UTC

Pair formation:

is a breeding process that requires choosing a good parent. For instance, a healthy male goose has a good physique with tidy feathers on the outside and inside. While females have a bone gap that satisfies the requirements between the pelvis and cloaca. In breeding, there is one male for every ten female geese.

Monogamy is a common trait among mute swans. When young adult geese attain sexual maturity, usually between the ages of 2 and 3, this process typically starts. The fiercely territorial birds known as geese frequently create pair connections outside of the mating season, and some of them even search for a partner for life.

F22B0135

2023-10-15 07:10:16 UTC

Mating system that involves the process of reproduction and mate selection. In cattle, mating can occur naturally through natural mating or artificially through artificial insemination (AI). Artificial insemination (AI) is a reproductive technology widely used in the livestock industry, including cattle farming. It involves the process of collecting semen from a male animal (bull) and artificially depositing it into the reproductive tract of a female animal (cow) to achieve pregnancy. Artificial insemination (AI) have many advantage in cow example is can improve genetic, disease control and economic benefits. Overall, artificial insemination is a valuable tool in modern agriculture.

F22A0190

2023-10-15 07:11:35 UTC

Long lasting bonds: there are four main mating systems: monogamy, polyandry, polygyny, and polygyny. Monogamy is a system in which two animals only mate with each other,in a system having monogamy like this, the pair bond can last for do not long time. An emergency couple can give many offspring of cygnets throughout life.

F22B0051

2023-10-15 07:19:29 UTC

One of the mating system in breeding schemes is inbreeding. Inbreeding is the production of offspring from the mating or breeding of individual or organisms that are closely related genetically. Inbreeding offspring are more likely to inherit recent copies of the same alleles of both parents. This include self fertilization, brother-sister, parent-offspring and cousin mating, as well as mating between more distant relatives. For an example Drosophila melanogaster display typical inbreeding where the female flies prefer brothers over unknown counterparts for mating.

F22A0009

2023-10-15 08:21:19 UTC

The mating system for outbreeding is the transfer of embryos from one animal to another and genetically different animals and unrelated animals as male and female are known as outbreeding. this system will increase the phenotypic variability in the population. there are 3 methods and one of them is interspecific reproduction. The process of taking males and females from 2 different related species are mated. Offspring that have characters from both sides of the parent. For example, a mule is between a mare and a donkey. There is a difference interspecific interaction is the interaction between two species while intraspecific refers to the interaction between two individuals of the same species. Intraspecific competition is usually more intense than interspecific competition because individuals have the same niche and therefore compete for the same resources.

F22B0074

2023-10-15 08:24:31 UTC

Mating system is one process of reproduction and selection to occur offspring so the mating system i have choose is crossbreeding. It to maximise hybrid vigour. In general it is important for traits associated with reproduction, survive and overall fitness. The selection between breed really important to occur a good offspring. For example if you want crossbreeding brahman and shorthorn the offspring called as Santa Gertrudis. Here some benefits of the crossing between two breed their colour. I just find that a lot of the females have unique colors, which is probably a combination of the Brahman hair color patterns and the roan hair color gene in Shorthorns.

F22B0075

2023-10-15 08:35:46 UTC

The mating system I have chosen is the two-breed rotational cross. In this system, two different breeds are mated to create a composite or crossbred population. For instance, an Angus breed cattle and a Gelbvieh breed cattle were crossed. The offspring from this initial cross are then bred together to create the first generation. In the second generation, cattles from either breed are crossed with animals from the first generation. This process continues in a systematic rotation between two parents breeds. This mating system aims to capitalize on the strengths of both parent breeds and improve certain traits in the resulting offspring. For example, if a breed is known for its high growth rate and the other is known for its disease resistance, the two-breed rotational cross can potentially produce animals with both high growth rates and improved disease resistance.

F22B0133

2023-10-15 11:34:22 UTC

My choice of the mating system would be crossbreeding process where two different breeds are mated within the same species. This is where species with special traits produces quality offspring from the chosen animals. This usually happens when breeders aim for a specific goal. An example would be Brahman and British cattle where It produces traits in their offspring to be adapted to hot and humid climates.

F22A0191

2023-10-16 01:52:39 UTC

The mating system in the breeding program is the process of selecting and matching male and female animals that have the desired genetic traits to achieve breeding goals. This involves selection and breeding, upgrading, crossbreeding and gene manipulation. The purpose is to improve the genetic traits in the domestic animal population in accordance with the established breeding goals. Changes only occur in the offspring. An example of a mating system is in the breeding of dairy cows. Farm owners may select bulls and heifers with high milk yield and good traits, such as disease resistance. These pairs of cows are allowed to breed, and their offspring are cows with desirable traits, including higher milk production.

F22A0015

2023-10-16 08:02:57 UTC

OUTCROSSING METHODE

Select the parental lines by identifying two or more parental lines or populations that you want to cross. These lines should have different but desirable traits that you want to combine in the offspring.
Choose the breeding individuals. Select individuals within each parental line that best represent the desired traits. Ensure that they are healthy and free from genetic defects.
Mating, cross individuals from one parental line with individuals from another parental line. The mating can be controlled to achieve the desired genetic combination.
Record data by keeping the detailed records of the parentage and traits of the offspring. This data will be essential for evaluating the success of the outcross and selecting future breeding candidates.
Evaluate offspring. Assess the offspring to determine if the desired traits have been successfully combined. Select the best individuals for further breeding or propagation.

Outbreeding

Identify the breeding goal by determining the specific genetic traits or characteristics you want to introduce or improve in the population.
Select unrelated individuals. Choose individuals that are not closely related to the current breeding population but possess the desired traits. These individuals can come from other populations, regions, or even species.
Mating stage, cross the selected individuals to create offspring. The mating can be controlled to achieve the desired genetic diversity.
Monitoring the offspring by observing and recording the traits and performance of the offspring. This helps in assessing the success of the outbreeding program.
Select and breed. Identify the best individuals among the offspring for further breeding. Continue the breeding program, keeping genetic diversity in mind, to maintain or improve desirable traits.
Maintaining the records. Keep comprehensive records of the breeding program, including parentage, traits, and performance. This information is crucial for making informed breeding decisions.

F22A0120

2023-10-16 08:39:28 UTC

Crossbreeding is mating of two or more breeds to produce crossbred progeny that have its own economic advantages. Two different breeds of animal are choose and they have complementary traits that able to enhance offspring's economic value, for example the crossbreeding between Yorkshire and Duroc breeds of swine.

F22A0013

2023-10-16 15:10:53 UTC

Pure breeding, also known as inbreeding is a breeding method used to establish and maintain the genetic purity and consistency of a particular trait or breed in animals. The process involves mating closely related animals to increase the likelihood of offspring inheriting the desired characteristics.
Start by selecting closely related in terms of genetics animals that exhibit the desired trait or characteristics and mate them to ensure that the offspring inherit the desired traits.
Continue the process over several generations. This can involve careful record-keeping and monitoring of genetic markers.
Avoid introducing unrelated individuals or outcrossing with other lines or breeds to keep the genetic pool relatively closed to prevent dilution of the desired traits.
Keep detailed records of the breeding program to track the inheritance of traits and the health of the breeding stock.
It's important to remove offspring that not exhibit the desired traits from the breeding program to maintain the genetic integrity of the line.
It's essential to be cautious when conducting purebreeding, as excessive inbreeding can lead to an increased risk of genetic disorders and reduced overall health and vigor. Proper management, monitoring, and genetic diversity are crucial to maintain the desired traits while ensuring the long-term health and sustainability of the population.

F22A0087

2023-10-16 15:11:13 UTC

Mating system are a set of rules for mating which is a process that determines which males are bred to which females. The expected outcomes would produce an extreme, a hybrid, an inbred, or an intermediates. Between the three different breeding schemes, the crossbreeding scheme refers to a planned breeding program in which animals are intentionally bred to produce offspring with specific desired traits or characteristics. The goal of crossbreeding is often to improve the genetic qualities of the offspring, such as increased disease resistance, better growth rates, improved meat quality, or other attributes.

F22A0008

2023-10-21 12:13:59 UTC

The mating system in animal breeding refers to the strategies and methods used to pair animals for the purpose of producing offspring with specific desirable traits or genetic characteristics. The choice of mating system depends on the breeding goals, the genetic diversity of the population and the available resources. I choose selective breeding because it aims to adapt an organism’s characteristics in a way that is desirable to the humans that breed them. Selective breeding involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. specific animals are chosen for mating based on their individual traits and genetic makeup. This approach allows breeders to emphasize certain desirable characteristics and improve the overall quality of a population.

F22A0188

2023-10-23 01:38:00 UTC

Outbreeding is a mating system where individuals from unrelated or genetically diverse populations are bred together. The goal is to increase genetic diversity and reduce the risk of inheriting harmful recessive traits. This practice is often used in agriculture and animal husbandry to improve the health and performance of offspring. Outbreeding can enhance adaptability and overall fitness, as it introduces novel genetic variations into the gene pool.

F22A0102

2023-10-28 03:54:54 UTC

Artificial insemination using frozen–thawed semen allows crossbreeding without the need to maintain large numbers of individuals of the sire breed. A more recent technique is the in vitro production of embryos. In this procedure, oocytes are harvested from donor animals, matured and fertilized in vitro, and the resultant embryos are cultured in the laboratory until either transferred immediately to recipients or cryopreserved for transfer at a later date. The need to maintain large numbers of purebred animals of the dam breed can be greatly reduced with in vitro production systems because a procedure called transvaginal ultrasound-guided oocyte recovery allows repeated collection of multiple oocytes from a single cow. Also, abattoir material can be used to harvest oocytes.

F22A0098

2023-11-02 08:00:54 UTC

Outbreeding is a mating system that involves mating individuals from different, unrelated populations or strains. The goal of outbreeding is to increase genetic diversity and reduce the risk of inbreeding, which can lead to genetic problems and reduced fitness in offspring. Here's a brief description of how an outbreeding mating system can be conducted:

Identify different populations or strains
Mate individuals from different populations
Monitor and manage genetic diversity
Avoid close relatives
Assess the outcomes

Outbreeding is commonly used in agriculture, animal breeding, and conservation to prevent inbreeding depression and enhance the overall health and adaptability of populations.