If that doesnt convince you, maybe some of the facts will:

• 300 million egg laying hens in the U.S. are confined in small wire cages stacked in tiers and lined up in rows inside huge warehouses. Hens are commonly packed 4 to a cage measuring just 16 inches wide. In this tiny space, the birds cant stretch their wings or legs, and they cant fulfill normal behavioral patterns or social needs. Constantly rubbing against the wire cages, they suffer from severe feather loss, and their bodies are covered with bruises and abrasions
• Typically they lay more than 250 eggs per year each. They suffer from "fatty liver syndrome" when their liver cells, which work overtime to produce the fat and protein for egg yolks, accumulate extra fat. They also suffer from what the industry calls 'cage layer fatigue,' and many become 'egg bound' and die when their bodies are too weak to pass another egg.
• After one year in egg production, the birds are classified as 'spent hens' and are sent off to slaughter. Their brittle, calcium-depleted bones often shatter during handling or at the slaughterhouse. They usually end up in soups, pot pies, or similar low-grade chicken meat products in which their bodies can be shredded to hide the bruises from consumers.
• in February 2003 in San Diego County, California, more than 15,000 'spent' laying hens were tossed alive into a wood-chipping machine to dispose of them. Despite tremendous outcry from a horrified public, the district attorney declined to prosecute the owners of the egg farm, calling the use of a wood-chipper to kill hens a "common industry practice."
• male chicks of egg-laying breeds are of no economic value, and they are literally discarded on the day they hatch — usually by the cheapest, most convenient means available. Thrown into trash cans by the thousands, male chicks suffocate or are crushed under the weight of others. (see the picture I posted)
• Approximately 100 million pigs are raised and slaughtered in the U.S. every year. As babies, they are subjected to painful mutilations without anesthesia or pain relievers. Their tails are cut off to minimize tail biting
• Modern breeding pigs are treated like piglet-making machines. Living a continuous cycle of impregnation and birth, each sow has more than 20 piglets per year. After being impregnated, the sows are confined in small metal pens just two feet wide that prevent sows from turning around or even lying down comfortably. At the end of their four-month pregnancies, they are transferred to similarly cramped farrowing crates to give birth. With barely enough room to stand up and lie down and no straw or other type of bedding to speak of, many suffer from sores on their shoulders and knees.
• After the sows give birth and nurse their young for two to three weeks, the piglets are taken away to be fattened, and the sows are re-impregnated.When the sow is no longer deemed a productive breeder, she is sent to slaughter.
• Prior to being hung upside down by their back legs and bled to death at the slaughterhouse, pigs are supposed to be 'stunned' and rendered unconscious. However, stunning at slaughterhouses is terribly imprecise, and often conscious animals are hung upside down, kicking and struggling, while a slaughterhouse worker tries to 'stick' them in the neck with a knife. If the worker is unsuccessful, the pig will be carried to the next station on the slaughterhouse assembly line — the scalding tank — where he/she will be boiled, alive and fully conscious.
• Today, dairy cows are forced to have a calf every year. Like human beings, cows have a nine-month gestation period, and so giving birth every twelve months is physically demanding.
• With genetic manipulation and intensive production technologies, it is common for modern dairy cows to produce 100 pounds of milk a day — ten times more than they would produce naturally.
• In a healthy environment, cows would live at least twenty-five years, but in modern dairies, they are slaughtered and made into ground beef after just three or four years.
• the dairy industry is a huge source of "downed animals" — animals who are so sick or injured that they are unable to walk or even stand. Investigators have documented downed animals routinely being beaten, dragged, or pushed with bulldozers in attempts to move them to slaughter
• Veal calves commonly live for eighteen to twenty weeks in wooden crates that are so small that they cannot turn around, stretch their legs, or lie down comfortably. The calves are fed a milk substitute, deficient in iron and fiber, which is designed to make the animals anemic, resulting in the light-colored flesh that is prized as veal. In addition to this high-priced veal, some calves are killed at just a few days old to be sold as low-grade 'bob' veal for products like frozen TV dinners.
• Within moments of birth, male calves are taken away from their mothers and loaded onto trucks. Many are sold through auction rings where they are subjected to transportation and handling stresses. The fragile animals are shocked and kicked, and when they can no longer walk, they are dragged by their legs or their ears
• Nearly ten billion chickens and half a billion turkeys are hatched in the U.S. annually. These birds are typically crowded by the thousands into huge, factory-like warehouses where they can barely move.
• Shortly after hatching, both chickens and turkeys have the ends of their beaks cut off, and turkeys also have the ends of their toes clipped off. These mutilations are performed without anesthesia, ostensibly to reduce injuries that result when stressed birds are driven to fighting.
• Upon arrival at the slaughterhouse, chickens are either pulled individually from their crates, or the crates are lifted off the truck with a crane or forklift, and they are dumped onto a conveyor belt. As the birds are unloaded, some miss the conveyor belt and fall onto the ground.
• Upon entering the facility, fully conscious birds are hung by their feet from metal shackles on a moving rail. After the shackled birds pass through the stunning tank, their throats are slashed by a mechanical blade. Inevitably, the blade misses some birds, who still are moving and struggling after improper stunning. Proceeding to the next station on the assembly line — the scalding tank — the birds are submerged in boiling hot water.Those missed by the killing blade are boiled alive

This is so sad I cant read anymore about it...