Charlotte's Web treats teats to another 15 minutes.
These insights into the teat situation come from notes accompanying an animated script of Charlotte's Web that was never made. Original source from Gene Deitch:
NORTH BROOKLIN, MAINE
December 20, 1970
This morning I unearthed a script I began, years back, when it seemed as though CHARLOTTE'S WEB was going to be filmed live. I remember when you were here your saying that perhaps a good way to start the film would be with the birth of Wilbur in the hoghouse. That's the way this thing starts, so I'll send it along with this letter, on the chance that there might be something in it that proves useful.
If you do start with the birth of Wilbur, I can give you a quick rundown of what actually happens at a farrowing– I've been there. The sow (enormous) lies on her side. She does not thrash about. The farmer sits nearby. As each tiny pig arrives, he picks it up and puts it in a box, for warmth. He ends up with a boxful of pigs. They are practically noiseless at this stage. After the sow has passed the afterbirth, she is still on her side. Sows have two rows of teats, usually ten in all---five and five. This means that when she is on her side there is an upper level and a lower level. She sometimes has to hitch herself over more onto her back in order to expose the lower level for the convenience of her children. When she is ready to feed the young ones, she utters short grunts in a low-pitched voice. The little pigs get the message, and the farmer ladles them out of the box. They instinctively stay together and line up like a squad of miniature soldiers. The corporal pays a visit to his mother's nose, where he delivers a short speech of encouragement, emphasizing the beauty of breasts and of milk. Then he returns to the squad, and pretty soon there is an assault on the mother, the young pigs rooting busily at her breasts as though they were digging for truffles. No milk as yet. Then the pigs start milling about, each seeking an advantageous position and the Teat Supreme. The forward teats on a sow are more productive than the hind ones---hence that old American phrase, "suck hind tit." After a while, with the sow still emitting her come-on grunts, the pigs settle into a formation, each, pig with his mouth around a faucet, the pigs of the upper level literally on top of the pigs of the lower level. A novice, viewing this happy scene, might suppose that the nursing has begun and that the pigs are getting nourished. Not so. But all of a sudden, as though a switch had been thrown, the milk starts to flow and the pigs sag back on their haunches and receive the gift of life.
"13 on 14" --
Growth of Nursing Pigs and Characteristics of Nursed Mammary Gland According to the Anatomical Location
Within hours after birth, pigs start to nurse the sow and teat order is quickly established. Sight, smell, and recognition of neighbors are factors which influence the identification of teats by new born pigs. Teat order helps to reduce the fighting frequency among littermates and it is reported that teat order at the middle position is more slowly established. Teat order is usually relatively stable. It is believed that heavier or dominant pigs usually nurse anterior mammary glands, which generally leaves the small or subordinate pigs to nurse the posterior glands. The variation in weight at weaning is primarily believed to be a result of differences in milk production by each mammary gland. Weight variations within a litter can result in greater complexity of management of pig movement through consecutive phases of production by delaying weaning or marketing.
It has been suggested that the anterior mammary glands may be larger, produce more milk, or provide a more comfortable nursing position for pigs, whereas others have suggested that there is no difference in milk production among glands. The true advantages for pigs nursing anterior mammary glands remains uncertain. The objectives of this study were to show how growth of nursing pigs is influenced by the characteristics of nursed mammary glands, and how this effect is may vary according to anatomical location of the glands.