Carcass
Partial Replacement of Barley Grain and Soybean Meal by Fleabane (Conyza Bonariensis) In Diets of Growing Awassi Lambs
Sun, 2014-02-09 10:16 — Prof. Dr. Jamal ABO OMAREffects of partial substitution of barley grain and soybean meal with fleabane (FB) Conyza bonariensis on growth performances and body compositions of 24 male local Awassi lambs were studied. All lambs were male with an average BW of 20.3 kg (s.d. = 2.0 kg) at the beginning of the experiment. Animals were randomly divided into four groups of six lambs each. Lambs in each group received individually their cereal–soybean-based total mixed rations with levels of FB: 0, 50, 100 and 150 g/kg dry matter (DM) diet, which replaced similar values of barley and soybean meal. All rations were isonitrogenous and isocaloric. The fattening experiment lasted 9 weeks, after which all lambs were slaughtered. The composition of nutrients in the C. bonariensis were 89.6%, 15.0%, 28.0%, 30.0% and 10% for organic matter, CP, NDF, ADF and lignin, respectively. At the end of the experiment, lambs fed 100 and 150 g FB/kg DM diets gained more weight (P < 0.05) than those fed the control and 50 g FB/kg DM diets. The DM intake was lower in lambs fed the highest level of FB compared with intakes of lambs in other treatments. Diet content of FB had significant effect (P < 0.05) on weights of empty body, carcass, gut and external (hide, head and feet) among all animals. However, FB had no effects on lambs’ thoracic organs (lungs and heart) and liver. Muscle, bone, omental and mesenteric fat, subcutaneous, intermuscular, pelvic and kidney fat weights (g/kg empty BW) were not affected by FB feeding. Carcass fat was decreased (P < 0.05) by the increase of FB. Total body fat was the same in all animals of the experiment.
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Performance and Carcass Characteristics of Finishing Black Goat Kids Fed Oil Supplemented Diets
Mon, 2013-02-11 12:33 — Jihad Mustafa AbdallahEffects of oil supplemented diets on growth performance and carcass proportions were studied using 27 male Black goat kids with a body weight (BW) of 19.4 ± 0.41 kg at the beginning of the experiment. Kids were randomly divided into 3 groups of 9, and those in each group were individually fed cereal grain-soybean meal (SBM) based total mixed rations (TMR) with a fixed amount (i.e., 30 g/kg dry matter (DM)) of oil being either: sesame (SES), sunflower (SUN) or soybean (SOY). All TMR were isonitrogenous and iso-metabolizable energy (ME). At the termination of the 105 d feeding study, all kids were slaughtered. Kids fed SES or SOY supplemented diets consumed more (P<0.05) feed (i.e., DM, organic matter, crude protein, neutral detergent fiber) and gained more BW (P<0.05) than those fed the SUN supplemented diet. However, kids fed the SES supplemented diets had a better (P<0.05) feed conversion ratio than kids fed the SUN or SOY diets. Oil type had no effect on carcass components (i.e., loin, legs, shoulder, rack) weights. Liver and kidney fat were heaviest (P<0.05) in kids fed the SES supplemented diet. However, kids fed the SES supplemented diet had less (P<0.05) mesenteric fat and lower (P<0.05) total gastrointestinal tract weights compared to kids fed the SUN or SOY supplemented diets. Eye muscle width and depth and rib eye area were higher (P<0.05) in carcasses of kids fed the SES supplemented diet. Positive effects of SES as a supplemental oil on most responses is encouraging, but more investigation is needed to identify the optimal level of SES in various diets of goat kids.
Performance and Carcass Characteristics of Finishing Black Goat Kids Fed Oil Supplemented Diets
Fri, 2012-12-14 14:19 — Prof. Dr. Jamal ABO OMAREffects of oil supplemented diets on growth performance and carcass proportions were studied using 27 male Black goat kids with a body weight (BW) of 19.4 ± 0.41 kg at the beginning of the experiment. Kids were randomly divided into 3 groups of 9, and those in each group were individually fed cereal grain-soybean meal (SBM) based total mixed rations (TMR) with a fixed amount (i.e., 30 g/kg dry matter (DM)) of oil being either: sesame (SES), sunflower (SUN) or soybean (SOY). All TMR were isonitrogenous and iso-metabolizable energy (ME). At the termination of the 105 d feeding study, all kids were slaughtered. Kids fed SES or SOY supplemented diets consumed more (P<0.05) feed (i.e., DM, organic matter, crude protein, neutral detergent fiber) and gained more BW (P<0.05) than those fed the SUN supplemented diet. However, kids fed the SES supplemented diets had a better (P<0.05) feed conversion ratio than kids fed the SUN or SOY diets. Oil type had no effect on carcass components (i.e., loin, legs, shoulder, rack) weights. Liver and kidney fat were heaviest (P<0.05) in kids fed the SES supplemented diet. However, kids fed the SES supplemented diet had less (P<0.05) mesenteric fat and lower (P<0.05) total gastrointestinal tract weights compared to kids fed the SUN or SOY supplemented diets. Eye muscle width and depth and rib eye area were higher (P<0.05) in carcasses of kids fed the SES supplemented diet. Positive effects of SES as a supplemental oil on most responses is encouraging, but more investigation is needed to identify the optimal level of SES in various diets of goat kids.
