@article{brannan_livingston_wall_livingston_rensburg_2021, title={Embryonic thermal manipulation and dietary fat source during acute heat stress: 2. Effect on broiler carcass characteristics and breast muscle myopathies}, volume={30}, ISSN={["1537-0437"]}, DOI={10.1016/j.japr.2021.100174}, abstractNote={The objective of this study was to evaluate the effect of embryonic thermal manipulation and dietary fat source during the finisher period on carcass characteristics and breast muscle myopathies following acute heat stress. Thermal manipulation (TM) of incubation temperatures has been shown to improve bird resistance to heat stress and enhance breast muscle growth. Fat supplementation is frequently used during heat stress and fat source may alter carcass composition, as fat sources rich in unsaturated fatty acids have been shown to reduce fat pad weight. Ross 708 eggs were incubated at 37.5°C except during TM when temperature was increased to 39.5°C for 12 h daily from embryo day 7 to 16. A total of 1,080 chicks were reared under standard conditions until acute heat stress at 43 d. Dietary treatments were applied during the finisher period beginning at 28 d, with diets including 4.5% of soya oil, poultry fat, or olive oil. At 49 d, 240 male birds were processed to assess carcass and portion weights, as well as breast quality. Carcass and portion weights were decreased by TM, however percent yield was similar to the controls. A decrease in breast muscle myopathies was noted but may have been due to the lower BW of the TM birds. Interactions between the treatments suggest that TM may alter lipid metabolism. Differences in dietary fat source did not affect carcass characteristics. The reduction in breast muscle myopathies may be negated by the negative impact of TM on carcass weights.}, number={3}, journal={JOURNAL OF APPLIED POULTRY RESEARCH}, author={Brannan, K. E. and Livingston, M. L. and Wall, B. and Livingston, K. A. and Rensburg, C. Jansen}, year={2021}, month={Sep} }
 @article{toomer_sanders_vu_livingston_wall_malheiros_carvalho_livingston_ferket_anderson_2020, title={Potential Transfer of Peanut and/or Soy Proteins from Poultry Feed to the Meat and/or Eggs Produced}, volume={5}, ISSN={2470-1343 2470-1343}, url={http://dx.doi.org/10.1021/acsomega.9b03218}, DOI={10.1021/acsomega.9b03218}, abstractNote={Previous studies have demonstrated that allergenic feed proteins from peanuts in the diets of layer hens are not detected in the eggs produced. Hence, in this study, we aimed to determine if soy and/or peanut proteins in poultry feed rations of broiler chickens or layer hens would be transferred or detectable in the meat or eggs produced. To meet this objective, 99 layer hens and 300 broiler chickens were equally divided into treatment groups and fed one of three experimental diets: control soybean meal and corn diet, whole unblanched high-oleic peanut and corn diet (HO PN), or a control diet spiked supplemented with oleic acid (OA) oil. At termination, broiler chickens were processed, and chicken breast samples of the left pectoralis muscle were collected, and eggs were collected from layers. Total protein extracts from pooled egg samples and chicken breast samples were subjected to enzyme-linked immunosorbent assay (ELISA) methods and immunoblotting analysis with rabbit antipeanut agglutinin antibodies and rabbit antisoy antibodies for the detection of peanut and soy proteins. Peanut and soy proteins were undetected in all pooled egg samples and individual chicken breast meat samples using immunoblotting techniques with rabbit antipeanut agglutinin and rabbit antisoy antibodies. Moreover, quantitative ELISA allergen detection methods determined all pooled egg samples and individual meat samples as “not containing” peanut or soy allergens. Therefore, this study helps to evaluate the risk associated with the potential transfer of allergenic proteins from animal feed to the products produced for human consumption.}, number={2}, journal={ACS Omega}, publisher={American Chemical Society (ACS)}, author={Toomer, Ondulla T. and Sanders, Elliot and Vu, Thien C. and Livingston, Matthew L. and Wall, Brittany and Malheiros, Ramon D. and Carvalho, Luiz Victor and Livingston, Kim A. and Ferket, Peter R. and Anderson, Kenneth E.}, year={2020}, month={Jan}, pages={1080–1085} }
 @article{toomer_livingston_wall_sanders_vu_malheiros_livingston_carvalho_ferket_2019, title={Meat quality and sensory attributes of meat produced from broiler chickens fed a high oleic peanut diet}, volume={98}, ISSN={0032-5791}, url={http://dx.doi.org/10.3382/ps/pez258}, DOI={10.3382/ps/pez258}, abstractNote={Previous studies have identified peanut meal prepared from normal-oleic peanuts as a suitable and economical ingredient for broiler feed. However, to date, no studies have examined the use of new, high-oleic peanut (HO-PN) cultivars as a feed ingredient for poultry. This project aimed to determine the effect of HO-PNs as a feed ingredient for broiler chickens on the quality and sensory attributes of the meat produced. To test 3 experimental diets, male broiler chicks were randomly placed, at hatch, in raised-wire cages, in 10 replicate pens per treatment with 10 chicks per cage. For 6 wk, chicks were fed, ad libitum, one of the three isocaloric, isonitrogenous diets: (1) a conventional soybean meal plus corn control diet, (2) 10 to 12% HO-PN + corn diet, or (3) a control corn diet spiked with ≈6.0% oleic fatty acid oil (OA). At 42 D, 3 broilers per pen (30 per treatment) were processed to determine meat quality and for consumer evaluation. Carcass weights and breast yields were reduced in broilers fed HO-PN, while leg carcass yields were greater in broilers fed HO-PN in comparison to the other groups. Chicken breast from broilers fed HO-PN had reduced meat-pH, reduced L* color values, and increased cooked loss compared to other treatments. Nevertheless, a group of 100-consumer panelists scored all 3-treatment groups similar in terms of sensory attributes for cooked chicken. While additional studies must be performed, this study suggest that HO-PN may be a suitable broiler feed ingredient.}, number={10}, journal={Poultry Science}, publisher={Elsevier BV}, author={Toomer, Ondulla T and Livingston, Matthew L and Wall, Brittany and Sanders, Elliot and Vu, Thien C and Malheiros, Ramon D and Livingston, Kim A and Carvalho, Luiz Victor and Ferket, Peter R}, year={2019}, month={Oct}, pages={5188–5197} }