Under the trade name Delnav, it can be used to control insects and mites on apples, pears, quince, grapes, and walnuts, and finds use in the control of ticks, horn flies, lice and sheep keds in various livestock, either as a spray or as a dip.
On average, the gestation period or length-of-pregnancy of a cow is 285 days long. This is similar to the pregnancy period of a woman, which is closer to around 9 months or ~260 days. However, actual gestation period of a cow can range from 270 days to 295 days, depending primarily on breed[s], age, body condition and nutritional health. Length of gestation is primarily an inherited trait, but has nothing to do with the rate of maturity of a certain breed or an individual animal.
Gestation length on a beef cow is another one of those numbers where the average is seldom seen. The gestation length for all breeds of cattle averaged together is 283 days. The range is 279 for Jersey and up to 292 for Brahman.On the average, the Continental breeds of Charolais, Simmental and Limousin exhibit gesta-tion lengths of 289 days.wenty-three percent were born be-tween 279 and 283 days of gestation, while only 13% were born between 284 and 291 days of gestation. The average gestation length on all 140 of these calves was 279 days, four days less than the 283 breed average.