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"Experientia docet" - Experience is the best teacher

Yeast culture (Saccharomyces cerevisiae) and its active metabolites affect the cecal microbiome of broilers

  • 2021
  • Issue: 6
  • Volume: 51
Z. Sun, Y. Zhen, T. Li, N.D. Aschalew, T. Wang, X. Chen, W. Zhao, X. Zhang & G. Qin Page: 678 - 688

Yeast cultures (YCs) are defined as promising feed additives that maintain the health of birds and improve growth performance by modulating gut microbiota. YCs contain effective metabolites such as glycine, fructose, inositol, galactose, and sucrose. This study investigated the effects…

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Effects of sex on carcass composition and physicochemical, textural and rheological properties of meat from grey partridge

  • 2021
  • Issue: 5
  • Volume: 51
K. Włodarczyk, D. Kokoszyński, M. Saleh, M. Kotowicz & P.D. Wasilewski Page: 647 - 656

The study aimed to determine the effects of sex on bodyweight (BW) and dimensions, carcass weight, dressing percentage, percentage of carcass components, chemical composition, mineral content, acidity and electrical conductivity of the breast and leg muscles of grey partridges (Perdix…

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Effect of exogenous protease on growth performance and meat quality in broilers reared on fishmeal-based diets

  • 2021
  • Issue: 5
  • Volume: 51
Najam-Us-Sahar, Muhammad Aslam Mirza, Shaukat Ali Bhatti & Muhammad Saif ur Rehman Page: 635 - 646

This study determined the effect of protease supplementation in fishmeal-based diets on growth performance and meat quality of commercial broiler birds. Four hundred and thirty-two (432) day-old broiler chicks were divided into 36 experimental units of 12 chicks each. Nine…

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Response of zebrafish to royal jelly supplementation and differences in stocking density

  • 2021
  • Issue: 5
  • Volume: 51
B.S. Pires, D.A.B. Moreski, F.R. Domanski, M.R. Sippert, A.S. Khatlab, R.P. Ribeiro, L.D. Castilha & E. Gasparino Page: 604 - 612

Dietary supplementation with royal jelly (RJ) may improve growth, antioxidant gene expression, and intestinal antioxidant capacity, and possibly mitigate effects of stress induced by high stocking density (HSD) in zebrafish (Danio rerio). Effects of HSD and RJ supplementation on growth…

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Nutritive value of full-fat dehulled sunflower seeds in diets for broiler chickens

  • 2021
  • Issue: 4
  • Volume: 51
E. Sosa-Montes, U. Martínez-Martínez, A. Pro-Martínez, F. González-Cerón, J. Gallegos-Sánchez & L.T. Rodríguez-Ortega Page: 542 - 549

The goal of this research was to evaluate the nutritive value of full-fat de-hulled sunflower seeds (DHSS) in feeding broiler chickens. Three experiments were conducted. Experiment 1 determined the proximal analysis of DHSS, the essential amino acid content, and apparent…

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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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Fractionation of carbohydrates and proteins and in vitro rumen kinetics of corn silage under various storage durations

  • 2021
  • Issue: 4
  • Volume: 51
S. Naetzold, J. Viégas, F.R. Skonieski, T.J. Tonin, L.L. Schumacher, M.B. Fagundes, L.T. Rocha, & R. Wagner Page: 523 - 532

The experiment evaluated the effects on the chemical composition (fermentation, kinetic parameters, and protein and carbohydrate fractions) of corn silage after various storage durations (45, 90, 180, and 360 days). Experimental mini silos of the corn plants were made and…

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Effects of feed with different protein digestion kinetic profiles on intestinal health of growing pigs

  • 2021
  • Issue: 4
  • Volume: 51
M.R. Thandavhathu, Y. Zhao, G. Qin, Z.W. Shen, B. Wang & Q. Zhang Page: 513 - 522

This study evaluated the effects of feed ingredients with different protein digestion kinetic profiles on the intestinal health of growing pigs. Two protein sources were selected, namely casein (CAS) as a rapid release source of amino acids (AAs), and corn…

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