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Proper selection of breeding stocks should always be considered. How important to you to know the bases in selecting breeder stocks?
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- https://www.researchgate.net/publication/235324145_Quantitative_Genetic_Application_in_the_Selection_Process_for_Livestock_Production Give a brief discussion about the study above mainly about genetics and variationWatermelon Genotypic and Phenotypic Ratio Practice Read the information below. Determine the ratios for phenotype and genotype of each Punnett Square.You may use the example from the Punnett Square worksheet as a guide.A genetic engineer is going to cross two watermelon plants to produce seeds for spring planting. He is breeding for size and wants to have many watermelons with the phenotype for long shape as possible. In watermelons, the allele for short shape is (S) is dominant to the allele for long shape. Determine the Genotypic ratios and phenotypic ratios for each Punnett square. Which cross would yield the highest number of long watermelons? Please make sure to write legibly to determine the capital “S” vs the lowercase “s” 1. SS x SS 2. SS x ss 3. SS x Ss 4. Ss x ss 5. Ss x ss 6. Ss x SsYou have the following data: Daily milk yield records of close relatives of a bull used to sire F1s: 24.4, 19.8, 23.0, 22.6, 20.2 kg, Daily milk yield records for cows: 18.1, 20.4, 17.5, 16.2, 25.2, 14.2 kg, Daily milk yield records for F1s: 31.0, 24.6, 25.4, 32.7, 26.3 kg. Calculate the heterosis (hybrid vigour) for this trait
- what are the birds health management programs or scheme intended for breeder layer and broiler production?what laws should be here for protecting the rights of breeders?In improving single trait in chicken, which of the following will you expect to have the lowest response to selection? Percent fertility FCR Yolk index Dressing percentage
- Most species of seafood that are selected for aquaculture are herbivores. True False Farmed catfish are normally harvested at 6 months of age. True False In recent years, modern breeding methods in swine production have resulted in fewer breeds and a narrowing of the genetic base. True FalseGive some external traits of gilts and boar that are related to the production performance of breeder animals. Explain briefly.In the selection index of a breeding program, the animal that has the lowest overall score based on the criteria of the index is used for the breeding program. Explain why the animal with the lowest overall score is selected for the breeding program.
- Compare and contrast purebred and crossbred breeding options. Include the advantages and disadvantages of each breeding system. Also include the different types and kinds of each system.1. You have been charged with breeding larger Leprechauns for next St. Patrick's Day. You measure the mass of Leprechauns that you have in your breeding population. The current population mean is 400g. You identify the largest Leprechauns and allow them to breed. The average mass of the breeding Leprechauns is 600g. a) Calculate the selection differential for your breeding program. b) One year later (assume Leprechauns have very fast generation intervals and this corresponds to one generation), you measure the mass of the next generation of Leprechauns. The average mass of Leprechauns in this next generation is 460g. What is the response to selection in your experiment? c) What is the heritability of body mass in your Leprechaun population?A flock of sheep have 140% lambing. The goal is increased fleece weight with smaller fiberdiameter. There are 960 ewes mated at a ratio of 1:40. Rams are two years old when their firstoffspring are born. After the 1st breeding season, ¾ of the rams are kept and used in a secondseason with those sold replaced with new, younger rams. Ewes first lamb at 2 years of age andare retained for 6 lambings but 10% of ewes fall out each year because of non-pregnancy and/ordeath loss (equal loss from all age groups). Fleece weight heritability is 0.3 and phenotypic sd 1lb.A. Calculate the direct response to selection on fleece weight.B. Fleece weight measures the quantity of fiber produced by an animal; however fleeceweight is related to fiber diameter with a genetic correlation of .35. Fiber diameter hasa phenotypic sd of 1.5 micron and heritability 0.5.C. Calculate the response in fiber diameter from your selection on fleece weight.D. You contracted with a university to perform a genetic…