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"Experientia docet" - Experience is the best teacher

Partial replacement of DL-Methionine and methionine hydroxy analogue with betaine in diets for broiler chickens

  • 2021
  • Issue: 4
  • Volume: 51
L. Silva, B.S. Vieira, L.D. Castilha, S.E. Takahashi, A.S. Avila, C. Souza, P.S. Cella, J. Broch & R.V. Nunes Page: 533 - 541

The study evaluated the effects on the growth performance and carcass characteristics of broiler chickens of DL-Methionine (DL-Met) and methionine hydroxy analogue (MHA) supplementation and their partial replacement with betaine (Bet). Two experiments were performed from day 1 to 21…

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Evaluation of polyherbal methionine and choline in feedlot rations for lambs

  • 2020
  • Issue: 5
  • Volume: 50
J.R. Bárcena-Gama, J.A. Martínez-Aispuro, G.D. Mendoza-Martínez, J.L. Cordero-Mora, M.T. Sánchez-Torres, J.L. Figueroa-Velasco & M.A. Ayala-Monter Page: 731 - 737

Requirements of lambs for choline and methionine have not been clearly established, but because of their metabolic relationship, the availability of these two nutrients may affect protein synthesis and energy balance. Therefore, a trial was carried out to evaluate the…

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Supplementation of Holstein dairy calves fed two levels of crude protein with methionine and lysine

  • 2020
  • Issue: 3
  • Volume: 50
M. Niroumand, K. Rezayazdi & M. Ganjkhanlou Page: 442 - 451

This study aimed to investigate various levels of crude protein (CP) in starter diets and their supplementation with amino acids (AAs) on efficiency, health, and serum metabolites of dairy calves. Ninety-six newborn Holstein calves were allocated to eight treatments, namely…

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Impact of dietary glutamine on amino acid digestibility values and intestinal morphometric parameters in neonate chicks

  • 2017
  • Issue: 4
  • Volume: 47
N.F. Namroud, M. Shivazad, M. Zaghari, O. Madadgar & K. Nourijelyani Page: 440 - 453

Two experiments were conducted to investigate the effects of fortification of the pre-starter diet with glutamine in post-hatch broiler chicks. In the first experiment, male chicks were used to study the impact of glutamine supplementation at three levels (0%, 1%…

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The microbial protein and undegradable essential amino acid requirements for the growth of male Merino and Dohne Merino lambs

  • 2004
  • Issue: 6
  • Volume: 34
J. van E. Nolte and A.V. Ferreira Page: 86 - 88

The chemical score of microbial protein revealed the order of limiting amino acids for whole empty body growth of Merino and Dohne Merino lambs as histidine, methionine, leucine, arginine and phenylalanine. Microbial protein is unable to provide a similar duodenal…

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The effect of protein inclusion level in diets formulated to contain an ideal amino acid composition for growing pigs

  • 2000
  • Issue: 1
  • Volume: 30
E. Pieterse, F.K. Siebrits, E.L. Gloy and A.K. Mphuloane Page: 57 - 61

The aim of the study was to determine the optimum protein inclusion level in diets containing an ideal amino acid balance for growing pigs. The performance of commercial crossbred grower-pigs was studied in two trials in which the experimental animals…

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