Effects of grain level on lamb performance, ruminal metabolism and leptin mRNA expression in perirenal adipose tissue
作者： Pedro A. Hernández , Germán D. Mendoza , A. Castro , A. Lara , F. X. Plata
DOI: 10.1071/AN15564
关键词:
摘要: The effects of four different grain composition diets finishing lambs on lamb performance, dry matter (DM) digestibility, rumen fermentation and leptin mRNA expression were evaluated. Thirty-two Pelibuey (25.35 ± 4.73 kg bodyweight) used in a completely randomised experiment which fed that contained 30%, 45%, 60% or 75% (DM basis). results indicated increasing the level improved average daily weight gain, hot carcass weight, DM digestibility feed conversion linearly (P < 0.01); however, intake was not affected. Ruminal pH decreased as content increased 0.01). propionate concentration acetate declined with Leptin perirenal adipose tissue 0.05) increased. Based these results, we conclude feedlot gain efficiency; because efficiency similar at higher levels, our data suggest including rations.
sci-hub.se 参考文章(37)
R. A. Stock, D. R. Brink, R. A. Britton, F. K. Goedeken, M. H. Sindt, K. K. Kreikemeier, M. L. Bauer, K. K. Smith, Feeding Combinations of High Moisture Corn and Dry-Rolled Grain Sorghum to Finishing Steers Journal of Animal Science. ,vol. 65, pp. 290- 302 ,(1987) , 10.2527/JAS1987.651290X
T. J. Wester, S. M. Gramlich, R. A. Britton, R. A. Stock, Effect of grain sorghum hybrid on in vitro rate of starch disappearance and finishing performance of ruminants. Journal of Animal Science. ,vol. 70, pp. 2866- 2876 ,(1992) , 10.2527/1992.7092866X
T. A. Murphy, S. C. Loerch, K. E. McClure, M. B. Solomon, Effects of grain or pasture finishing systems on carcass composition and tissue accretion rates of lambs. Journal of Animal Science. ,vol. 72, pp. 3138- 3144 ,(1994) , 10.2527/1994.72123138X
Luiz Juliano Valério Geron, Alexandre Agostinho Mexia, Renato Lima Cristo, Jocilaine Garcia, Luciano Da Silva Cabral, Raquel Joana Trautmann, Osvaldo De Souza Martins, Lúcia Maria Zeoula, Intake, apparent digestibility and ruminal characteristics of the lambs fed with increasing levels of concentrate in tropical environment in the Valley of Guaporé-MT. Semina-ciencias Agrarias. ,vol. 34, pp. 2497- 2510 ,(2013) , 10.5433/1679-0359.2013V34N5P2497
S. R. Silva, M. J. Gomes, A. Dias-da-Silva, L. F. Gil, J. M. T. Azevedo, Estimation in vivo of the body and carcass chemical composition of growing lambs by real-time ultrasonography. Journal of Animal Science. ,vol. 83, pp. 350- 357 ,(2005) , 10.2527/2005.832350X
L. Chapaval, C. de S. Olivindo, L. Melotti, J. P. A. Rego, P. Rossi Júnior, Roughage/concentrate ratio on ruminal ammonia concentration, pH and volatile fatty acids in crossbred dairy cows. Revista Brasileira de Saúde e Produção Animal. ,vol. 9, pp. 18- 28 ,(2008)
Solveig M. Stubsjøen, Jon Bohlin, Ellen Dahl, Maren Knappe-Poindecker, Terje Fjeldaas, Michael Lepschy, Rupert Palme, Jan Langbein, Erik Ropstad, Assessment of chronic stress in sheep (part I): The use of cortisol and cortisone in hair as non-invasive biological markers Small Ruminant Research. ,vol. 132, pp. 25- 31 ,(2015) , 10.1016/J.SMALLRUMRES.2015.09.015
J. Issakowicz, M.S. Bueno, A.C.K. Sampaio, K.M.R. Duarte, Effect of concentrate level and live yeast (Saccharomyces cerevisiae) supplementation on Texel lamb performance and carcass characteristics Livestock Science. ,vol. 155, pp. 44- 52 ,(2013) , 10.1016/J.LIVSCI.2013.04.001
Y. Chilliard, C. Delavaud, M. Bonnet, Leptin expression in ruminants: nutritional and physiological regulations in relation with energy metabolism. Domestic Animal Endocrinology. ,vol. 29, pp. 3- 22 ,(2005) , 10.1016/J.DOMANIEND.2005.02.026
E.R. Ørskov, W.P. Flatt, P.W. Moe, Fermentation Balance Approach to Estimate Extent of Fermentation and Efficiency of Volatile Fatty Acid Formation in Ruminants Journal of Dairy Science. ,vol. 51, pp. 1429- 1435 ,(1968) , 10.3168/JDS.S0022-0302(68)87208-X