کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2454350 | 1110385 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of Elevated Crude Glycerin Concentrations on Feedlot Performance, Carcass Characteristics, and Serum Metabolite and Hormone Concentrations in Finishing Ewe and Wether Lambs1
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effects of Elevated Crude Glycerin Concentrations on Feedlot Performance, Carcass Characteristics, and Serum Metabolite and Hormone Concentrations in Finishing Ewe and Wether Lambs1 Effects of Elevated Crude Glycerin Concentrations on Feedlot Performance, Carcass Characteristics, and Serum Metabolite and Hormone Concentrations in Finishing Ewe and Wether Lambs1](/preview/png/2454350.png)
چکیده انگلیسی
Forty-eight crossbred lambs (29.0 ± 4.5 kg; 24 ewes, 24 wethers; 1 ewe and 1 wether/pen; 6 pens/treatment) were blocked by BW and randomly assigned to 1 of 4 isocaloric, isonitrogenous treatments containing 0, 15, 30, or 45% crude glycerin (DM basis). Diets, which were offered ad libitum, were primarily composed of 15% chopped hay, 25% dried distillers grains with solubles, and cracked corn, which was replaced with increasing amounts of crude glycerin. Lambs were weighed in 21-d intervals and selected for slaughter when they reached approximately 55 kg of BW. Blood samples were collected on d 57 for analysis of metabolic parameters. Carcass characteristics were collected after a 48-h chill. Days on feed increased linearly (P < 0.001), ADG decreased qua,d,ra,timlly (P = 0.02), and both DMI and G:F decreased linearly (P < 0.001) with increasing amounts of glycerin in the diet. Although HCW and LM area did not differ as a result of treatment (P â¥Â 0.31), DP, 12th-rib fat thickness, and LM ether extract all decreased linearly with concomitant increases in glycerin (P â¤Â 0.02). Serum glucose and insulin concentrations decreased linearly with increasing amounts of glycerin in the diet (P â¤Â 0.02), and BHBA concentrations were greater for lambs fed glycerin than those not fed glycerin (P < 0.001). Data from the current study suggest that although feeding up to 15% crude glycerin in the diets of finishing lambs does not differ from feeding no glycerin, feeding 30% or more may have deleterious effects on feedlot performance, carcass quality, and both serum metabolite and hormone concentrations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Professional Animal Scientist - Volume 26, Issue 3, June 2010, Pages 298-306
Journal: The Professional Animal Scientist - Volume 26, Issue 3, June 2010, Pages 298-306
نویسندگان
P.J. Gunn, A.F. Schultz, M.L. Van Emon, M.K. Neary, R.P. PAS, C.P. Rusk, S.L. PAS,