Early weaning of twins as potential factor of the increase of Lamb meat production

Abstract

Increase of the production of lamb meat can be achieved by increasing the number of twin lambs which is popular practice in the world today - forcing of the multiple fertility. However, the issue of early weaning of Iambs is also present in many cases. It is known that twins are more difficult to maintain during first period and they are slower in growth in future development, which indicates the production of early weaned twin lambs. In domestic, and especially international, literature the issue of early weaning of twin lambs from the aspect of production of lamb meat was discussed however there are no literature references regarding the effect of early weaning on future development of twins after weaning. The objective of this paper was to determine the effect of early weaning of twins on their future development and production, and breeding. Based on presented analysis regarding the effect of early weaning of twin lambs on their future development and production, the following can be concluded: Early weaned twins (age of 2 months) have slower growth and body development compared to single offspring but these differences weren't statistically significant. However, although technically more complicated, weaning of twins only several days after birth was proved to be most efficient in regard to future development and production since these twins were the only ones which have realized same results as single lambs during the investigation period. In case of early weaning, growth of twin lambs depends on their initial body mass which is almost always below the body mass of single lambs. The wool production was higher in case of those animals whose body was more developed, that is the skin surface larger, also the nutrition during first two months was unified and regular as in case of single lambs and lambs from group I.

Povećanje proizvodnje jagnjećeg mesa moguće je postići povećanjem broja jaganjaca bližnjenjem, pa se danas u svetu sve više forsira gajenje rasa sa izraženijom mnogoplodnošću. Međutim, u mnogim se slučajevima, paralelno s tim postavlja i pitanje što ranijeg odlučivanja jaganjaca. Poznato je da se blizanci teže održavaju u prvim danima i sporije napreduju u daljem razvoju što upućuje na proizvodnju rano odlučenih blizanaca. U našoj. a naročito stranoj literaturi obrađivano je pitanje ranog odlučivanja blizanaca s gledišta proizvodnje jagnjećeg mesa, ali se do soda nije obrađivao njegov uticaj na razvoj blizanaca posle odlučivanja. Cilj ovog ispiti van/a je bio da utvrdi uticaj ranog odlučivanja blizanaca na njihov dalji razvoj i proizvodnju, odnosno uzgoja blizanaca koji se ostavljaju za dalji priplod.