Yes, horses can be exclusively fed on grass. In fact, grass is the natural diet for horses and provides them with the necessary nutrients, including fiber, protein, and essential vitamins and minerals. However, it is important to ensure that the pasture is of good quality and that the horse has access to a variety of grasses to meet its nutritional needs. Additionally, some horses may require supplemental feed or hay, especially during periods of limited pasture availability or if they have higher energy requirements. **

Fresh grass clippings can be fed to chickens in moderation as a treat, but they should not make up a large portion of their diet. However, it is not recommended to feed fresh grass clippings to cows as their digestive systems are not designed to efficiently process large amounts of fresh grass. It is better to provide cows with dried grass or hay as their primary source of forage. **

Yes, grass cut with a brush cutter can be fed to horses, but there are some considerations to keep in mind. It's important to ensure that the grass is free from any toxic plants or contaminants that could harm the horses. Additionally, the grass should be cut at an appropriate length and not too short, as horses need longer strands of grass to aid in digestion. It's also important to monitor the horses for any signs of digestive upset after introducing the cut grass to their diet. Overall, it's best to consult with a veterinarian or equine nutritionist to ensure that the grass is safe and suitable for feeding to horses. **

A prime lens with a focal length between 35mm and 50mm is typically considered suitable for street photography. These lenses offer a natural field of view that closely resembles what the human eye sees, making them great for capturing candid moments in urban environments. Additionally, prime lenses are often compact and lightweight, which is ideal for street photographers who need to move quickly and discreetly. Overall, a 35mm or 50mm prime lens is a popular choice among street photographers for its versatility and ability to capture authentic moments. **

A macro lens is typically the best choice for product photography. Macro lenses are designed to capture small subjects with great detail and clarity, making them ideal for capturing the intricate details of products. They also have a close focusing distance, allowing you to get up close to the product for detailed shots. Additionally, a lens with a focal length between 50mm and 100mm is recommended for product photography as it provides a natural perspective and minimizes distortion. **

Guinea pigs have a unique digestive system that is not designed to handle force-feeding or tube-feeding. Their delicate esophagus and stomach can easily be injured by the insertion of a feeding tube, leading to potential complications such as aspiration pneumonia. Additionally, guinea pigs are prone to stress, and force-feeding or tube-feeding can cause significant distress and anxiety, which can further compromise their health. It is important to find alternative methods of feeding and providing necessary nutrition to guinea pigs that are less invasive and more suitable for their sensitive digestive systems. **

For animal photography, a camera with a fast autofocus system and high burst rate is essential to capture fast-moving subjects. A good choice would be a DSLR or mirrorless camera with at least 20 megapixels for high-quality images. As for the lens, a telephoto lens with a focal length of 70-200mm or longer is recommended to get close-up shots of animals without disturbing them. Additionally, a lens with image stabilization can help reduce camera shake when shooting handheld in low light conditions. **

For wildlife photography, a camera with a fast continuous shooting speed, high resolution, and good low-light performance is ideal. Cameras like the Canon EOS 90D, Nikon D500, or Sony Alpha a6600 are popular choices. When it comes to lenses, a telephoto lens with a focal length of at least 300mm is recommended to capture distant wildlife without disturbing them. Lenses like the Canon EF 100-400mm f/4.5-5.6L IS II, Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR, or Sony FE 200-600mm f/5.6-6.3 G OSS are great options for wildlife photography. **