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Title: DRY MATTER INTAKE AND BODY WEIGHT CHANGES IN LAMBS FED DIFFERENT AMOUNTS OFWATER WASHED DE-OILED JOJOBA MEAL

Author
item VONTUNGELN, A - OKLAHOMA STATE UNIVERSITY
item PHILLIPS, WILLIAM
item ABBOTT DR, THOMAS

Submitted to: American Society of Animal Science Southern Section Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 2/1/1997
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Seeds from Jojoba (Simmondis chinensis), a desert shrub, are pressed to remove high quality oil. Water washing deoiled Jojoba meal has been shown to remove the antinutritional factors associated with poor animal performance when Jojoba seeds or de-oiled meal was fed to monogastric species. No data are available on feeding water washed deoiled Jojoba mea (WWJM) to ruminants. The objective of this experiment was to determine dry matter (DM) intake and body weight changes of lambs fed different levels of WWJM. Thirty-two lambs were randomly assigned to individual pens, blocked by sex and randomly assigned within block to one of four treatments for a 56-d feeding period. All lambs were fed 824 g of DM/d of a basal diet of alfalfa hay, corn, and molasses plus 275 g of DM /d of a pelleted 20% CP supplement containing either 0, 13, 26, or 40% WWJM. Feed intake was measured daily, but composited weekly. Body weight changes were measured on day 0, 28 and 56 following a 16-h fast without water. Data were analyzed by GLM procedures using repeated measures. Dry matter intake increased (P<.01) with time and peaked at week 5. As the amount of WWJM in the diet increased, DM intake decreased (P<.05) during the first 6 weeks of the experiment. No differences were observed in DM intake among the four dietary treatments during week 7 or 8. Weight gain during the first 4 weeks of the experiment tended (P<.11) to be lower for lambs receiving the higher levels of WWJM, but overall weight gain was not affected (P>.15) by treatment. Water washed de-oiled Jojoba meal can be fed to lambs without affecting DM intake or weight gain if it comprises no more than 13% of a supplement fed at 25% of the total diet.