Question

what is the role of animals in agriculture?​

Answer 1

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Importantly, although often overlooked, meat, milk, eggs, and other animal products, including fish and other seafoods, will play an important role in achieving food security for several reasons.

First, animal products are an important source of high-quality, balanced, and highly bioavailable protein and numerous critical micronutrients, including iron, zinc, and vitamins B-12 and A, many of which are deficient in a large portion of the world's population. Thus, moderate consumption of animal-sourced foods plays an important role in achieving a nutritionally balanced diet, especially in the developing world.

Second, because they are recognized as high-quality foods, global demand for animal products is almost certain to continue to increase dramatically . The drivers of the increased demand for animal products include not only population growth but also increased affluence, especially in the developing world, where most of the increase in population will occur.

Third, farm animals are critical to a sustainable agricultural system and especially for smallholders who comprise most of the world's farmers . Farm animals contribute not only a source of high-quality food that improves nutritional status but also additional resources such as manure for fertilizer, on-farm power, and other by-products, and, in addition, provide economic diversification and risk distribution. Moreover, increased efficiencies in the past several decades through genetic selection and improved management technologies has saved a large amount of resources, including water and land, and have substantially reduced the carbon footprint of animal production.

Fourth, ruminants such as buffalo, cattle, goats, and sheep, efficiently convert the forages from grasslands into high-quality animal products, and grazing also can promote the health and biodiversity of grasslands if managed appropriately . This is important because grassland pastures cover >25% of the Earth's land surface and, despite being home to nearly a billion people, comprise primarily marginally or non-arable land .

However, sustainable farm animal production will also require a more complete understanding of their impact on the environment. For example, a report by the FAO of the UN estimated that livestock, and especially ruminants, contribute as much as 18% of greenhouse gas emissions, but others have suggested that this is a gross overestimate and that the actual value may be as low as 3% . Regardless, as farm animal production continues to increase, we need to be concerned with not only greenhouse gases but also the impact of farm animals on soil, water, and biodiversity . We also need to better understand the specific role of animal products in the diet in the global increase in noncommunicable diseases such as type 2 diabetes, obesity, and cardiovascular disease, because noncommunicable diseases are now responsible for more deaths worldwide than all other causes . In this regard, recent reports from the National Research Council and from the Office of Disease Prevention and Health Promotion, Department of Health and Human Services, argue strongly for renewed focus, including additional research, on these controversial and critical issues .

Answer 2

It helps in various activities as pulling the bullock and by taking the loads. Animals are used in agriculture because it gives them a free work without the help of money