The influence of creatine and a high glycemic carbohydrate on the growth performance and meat quality of market hogs fed ractopamine hydrochloride

Crossbred barrows ( n = 128; 85 ± 0.91 kg) were randomly allotted to one of four dietary treatments. A pelleted corn-soybean diet containing 5 ppm Paylean ® (PAY) was tested against a negative control (NCON) diet formulated to meet or exceed the National Research Council’s requirements for the growi...

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Bibliographic Details
Published in:	Meat science 2007, Vol.75 (1), p.143-149
Main Authors:	Stahl, C.A., Carlson-Shannon, M.S., Wiegand, B.R., Meyer, D.L., Schmidt, T.B., Berg, E.P.
Format:	Article
Language:	eng
Subjects:	barrows Biological and medical sciences carcass weight carcass yield castration corn Creatine crossbreds experimental diets feed conversion Food industries Fundamental and applied biological sciences. Psychology glucose Meat and meat product industries meat composition Paylean pelleted feeds pig carcasses Pork Pork quality protein deposition slaughter weight soybeans swine feeding
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Summary:	Crossbred barrows ( n = 128; 85 ± 0.91 kg) were randomly allotted to one of four dietary treatments. A pelleted corn-soybean diet containing 5 ppm Paylean ® (PAY) was tested against a negative control (NCON) diet formulated to meet or exceed the National Research Council’s requirements for the growing pig, a pelleted corn-soybean diet containing 0.92% creatine and 2.75% dextrose (COMBO), and a pelleted corn-soybean diet containing a combination of 5 ppm Paylean ®, 0.92% creatine, and 2.75% dextrose (PAYPLUS). No treatment differences were noted when comparing ADG ( P = 0.66) and hot carcass weight ( P = 0.75). Over the 27 d test, barrows fed PAY and PAYPLUS produced loins with a larger ( P < 0.01) loin muscle area (LMA) than those fed NCON or COMBO diets. Barrows fed the NCON diet were fatter at the 10th-rib ( P < 0.01) than those animals fed the remaining dietary treatments. Dietary treatment did not affect the ultimate pH ( P = 0.87), Japanese color score ( P = 0.25) or Minolta L ∗ ( P = 0.61) and b ∗ ( P = 0.56) values of the loin. Loin chops from NCON, COMBO and PAYPLUS tended ( P = 0.07) to contain a higher intramuscular fat content than those from barrows fed PAY. Additionally, loin chops from the NCON and COMBO fed animals were more red (higher a ∗-value) than those chops coming from animals fed the PAY diet ( P < 0.01).
ISSN:	0309-1740 1873-4138