DETERMINAÇÃO DA FASE LACTENTE-RUMINANTE DE CORDEIROS PELA TÉCNICA DO δ13C
Titel:
DETERMINAÇÃO DA FASE LACTENTE-RUMINANTE DE CORDEIROS PELA TÉCNICA DO δ13C
Auteur:
Janaina Januário da Silva Ciniro Costa Carlos Ducatti Alda Lúcia Gomes Monteiro Clédson Augusto Garcia
Verschenen in:
Ciéncia animal brasileira
Paginering:
Jaargang 11 (2010) nr. 2 pagina's 264-270
Jaar:
2010
Inhoud:
This study was conducted at University of Marília, SãoPaulo State, Brazil, aiming to determine the phase of intake transitionbetween exclusively liquid diet (milk) and diet based onmilk, grass and/or ration by lambs by δ13C technique. Six Suffolkcrossbreeding lambs were distributed in a totally random design(3x2), with two experimental groups and three replications. At thefirst one, lambs were penned and sucked milk from dams fed withC4 diet. besides, they had access to C3 ration in creep feeding, sincetheir birth. At the second group, lambs were kept on a paddock withTifton – 85 grass (C4 photosynthetic way) as well as their dams andhad access to C3 ration in creep feeding, since their birth. The C3ration contained soybean meal, ground oat grains, lucerne hay andalso mineral salt. The penned lambs’ ration consumption overcamethe milk intake at 30-35 days after birth; however, grazing lambsingested more milk and pasture than ration until 40 days afterbirth. The δ 13C technique was considered effective on studies oflambs feeding behavior.