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Sexed semen has become a major resource for managing, developing and increasing the size of dairy cow herds. This sexing technology allows for new ways to plan mating between dairy females and males as well as the renewal of herds. However, as this semen has undergone various manipulations, it is therefore fragile and valuable from an economic viewpoint.

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With most animals, it is relatively easy to determine the sex of the newborn. The male reproductive organs are located on the outside of the body and are relatively easy to see, even in newborns. This is not the case with poultry.

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Documented sex differences in brain structure are typically taken to support this dimorphic view of the brain. However, neuroanatomical data reveal that sex interacts with other factors in utero and throughout life to determine the structure of the brain, and that because these interactions are complex, the result is a multi-morphic, rather than a dimorphic, brain. The last two decades have seen a resurgence of interest in the ancient question of whether men and women are fundamentally different.

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The foremost primary sources for the study of a past society are its individuals, i. In study of social and individual attitudes to or negotiations of gender, the human remains need to be identified within the spectrum of possibilities in each of the variable sets - class, race, age and sex. For the differential sexing of bodies as 'male' and 'female' also as 'male' 'female' and 'child'archaeology uses techniques developed in anatomical sciences. A convenient starting-place for further reading is the Shire Archaeology introduction by Stirland

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In the egg industry, the sex of day-old chicks is determined at the hatchery. Sexing chicks determining whether they are a hen or a rooster requires considerable skill and is done at this very early stage to determine their fate. If strong and healthy, the female chicks are transferred to a site where they are grown to a suitable size and then moved to a laying facility — which could be a cage, free-range or barn set up.

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Speak to an Expert Today! Ph Many of us who keep backyard chickens raise them from hatchlings or day old chicks.

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This chapter begins with a description of the male and female reproductive systems followed by a section on sex determination. A good knowledge of the anatomy of these systems has allowed the development of a unique technique for semen collection and insemination adapted specifically to geese see section on Artificial Insemination. This is slightly different from the technique used for most other avian species, e.

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September Which sex, which gender? A few general observations.

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The brain and the mind are fascinating for feminism, given that oppression has been normalised by referencing to the brain. This article attempts to accumulate knowledge generated by the field of neurofeminism, and searches for an association between doing feminism and the sciences. Sexual identity is not owned but constructed through heteronormative power norms which point towards how any sexual orientation is neither innate nor stable, and hence, cannot be regarded as an immutable identity Butler

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By accessing this site, you accept the Terms of Use and Privacy Policy. You can unsubscribe from Leafly email messages anytime. In the world of plants, reproduction can happen in a variety of ways. Hermaphrodite plants grow single flowers that have both male and female reproductive organs.

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