Results 261 to 270 of about 41,870 (302)

Metabolizable protein requirements of Dorper crossbred ram lambs

Animal Feed Science and Technology, 2017
Abstract The net protein (NP) and metabolizable protein (MP) requirements of Dorper crossbred ram lambs grown from 35 to 50 kg BW were assessed in a comparative slaughter trial. Thirty-five intact male lambs (34.1 ± 0.6 kg BW) of F1 crosses of Dorper × thin-tailed Han sheep were used: 7 lambs of 35 kg BW were slaughtered as the baseline animals at ...
K.D. Deng, T. Ma, C.G. Jiang, Y. Tu, N.F. Zhang, J. Liu, Y.G. Zhao, G.S. Xu, Q.Y. Diao   +8 more
openaire   +3 more sources

Estimation of the metabolizable energy equivalence of dietary proteins

European Journal of Nutrition, 2006
Protein contributes significantly to the human daily energy budget. The high diversity in composition, digestibility and dietary proportion complicates the estimation of its actual energy contribution. In practical terms we continue using the energy equivalents estimated by Atwater.
Raquel, Ferrer-Lorente, José Antonio, Fernández-López, Marià, Alemany   +2 more
openaire   +2 more sources

Metabolizable protein and amino acid requirements of growing cattle

Journal of Animal Science, 1993
Metabolizable protein and amino acid requirements for growing cattle were estimated using data from 11 research trials. A total of 543 steers were individually fed a high-roughage diet supplemented with protein at several levels above a urea supplement control. The mean weight for all animals was 253 kg, with a range in mean initial to final weights of
V A, Wilkerson, T J, Klopfenstein, R A, Britton, R A, Stock, P S, Miller   +4 more
openaire   +2 more sources

Metabolizable Protein of Summer Annuals for Growing Calves

Journal of Production Agriculture, 1993
Two trials were conducted to determine and evaluate the rumen degradable and escape protein (EP) value of two summer annuals for yearling cattle. In Trial 1,120 heifers (Bos taurus) (530 lb), arranged in a completely randomized design, were supplemented with 0, 0.25, 0.40, or 0.55 lb crude protein (CP)/d supplied by corn gluten meal:blood meal (CGM:BM)
K. J. Hollingsworth, T. J. Klopfenstein, M. H. Sindt   +2 more
openaire   +1 more source

Energy and metabolizable protein supply

2011
Several systems are used to measure energy (Van Es, 1978; Moller et al., 1983; INRA, 1989; NRC, 1989; AFRC, 1993) and metabolizable protein (MP) (Madsen, 1985; NRC, 1985; Verite et al., 1987; AFRC, 1992; Tamminga et al., 1994) supplies in cattle. Feed evaluation for cattle is in continues development and several new systems have been proposed (Sniffen ...
H. Volden, N. I. Nielsen
openaire   +1 more source

Mammary gland development in heifers under different metabolizable protein and metabolizable energy ratios

2013
Mammary development is affected by nutrient intake, which affects the intensity of weight gain. There are several ways to evaluate mammary development, but almost all involve the slaughter of the animals. On other hand, other studies have been conducted with ultrasound to evaluate fat deposition on lean tissue (Wertz et al., 2002).
R. L. Albino, M. I. Marcondes, B. C. Gomes, L. G. R. Pereira, T. E. da Silva, A. S. Trece   +5 more
openaire   +1 more source

The metabolizable protein requirement of the parasitized, lactating ewe

Proceedings of the British Society of Animal Science, 2002
It has been suggested that periparturient breakdown of immunity to parasites (BIP) has a nutritional basis (Coop and Kyriazakis, 1999). In support of this hypothesis, recent studies have shown that an increased supply of metabolizable protein (MP) reduces the magnitude of periparturient BIP in sheep (Houdijk et al., 2001).
J. G. M. Houdijk, I. Kyriazakis, F. Jackson, R.L. Coop   +3 more
openaire   +1 more source