Hog slaughter dropped to an estimated 1.975 million head last week. The long holiday weekend cut into the hog harvest and the downtime at JBS exacerbated the tightness in production. Slaughter is expected to rebound this week to 2.325 million head, up 17 percent from last week. The next six weeks, which include the July 4^th holiday, the hog harvest is forecast out at an average of 2.313 million head per week. The next six weeks are forecast down 0.6 percent from…