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"Experientia docet" - Experience is the best teacher

Effects of protected sodium butyrate and reduced energy content in diets for broiler chickens

  • 2022
  • Issue: 2
  • Volume: 52
M.F. Pires, D.V. Jacob, N.S.M. Leandro, R.A.N. Mendonça, I. da S. Faria, D.P. Carvalho, H.F. de Oliveira, M.B. Café & J. H. Stringhini Page: 241 - 251

Effects of protected sodium butyrate (PSB) in broiler diets with reduced metabolizable energy (ME) content on production performance, intestinal histomorphometry and nutrient metabolizability were evaluated in two experiments. In one experiment, 384 one-day-old male chicks with an average weight of…

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Bayesian estimates of genetic parameters for bodyweights in Mecheri sheep of India

  • 2022
  • Issue: 2
  • Volume: 52
R. Rajendran, J. Muralidharan, C. Bandeswaran, S.K. Illa, K. Kizilkaya, S.O. Peters & A.K. Thiruvenkadan Page: 234 - 240

An understanding of genetic information and relationships among traits is required for an improvement programme to be successful. Therefore, this study aims to estimate certain (co)variance components for bodyweights Mecheri sheep collected at various ages. The data consisted of 2…

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Protected lysine in diets for 25–100 kg pigs

  • 2022
  • Issue: 2
  • Volume: 52
J.L. Figueroa-Velasco, D. Trujano-San Luis, J.A. Martínez-Aispuro, M.T. Sánchez-Torres, J.L. Cordero-Mora, A. Ruíz-Flores & M.M. Crosby-Galván Page: 202 - 213

The digestible lysine requirements for fattening pigs have not been established clearly. The objective of this trial was to determine a level of protected lysine in pig diets that was adequate for growth performance, carcass characteristics, and plasma urea nitrogen…

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Diversity and taxonomic identification of bacteria in the rumen of zebu cattle fed various diets

  • 2022
  • Issue: 2
  • Volume: 52
B.K. Korir, J.K.N. Kuria, D.M. Mwangi & C.K. Gachuiri Page: 195 - 201

In this study bacterial populations were identified in the rumen of zebu cattle fed various diets and classified taxonomically with metagenomic sequencing of the 16S rRNA gene. Twenty-four (24) heifers were used in a completely randomized experimental design to test…

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Effects of feeding pellets, live earthworms and tilapia on the growth of African sharptooth catfish fingerlings

  • 2022
  • Issue: 2
  • Volume: 52
M.Y. Moroasui, A. Ampofo-Yeboah & M.A Antwi Page: 186 - 194

The objective of the study was to evaluate the effects of feeding live earthworms (Eisenia foetida) (Savigny, 1826) (Musyoka et al., 2020) and tilapia (Oreochromis mossambicus) (Peters, 1852) (Russell et al., 2012) on the growth rate of African sharptooth catfish…

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Serological and molecular identification of Mycobacterium avium subsp. paratuberculosis and associated risks in bovine

  • 2022
  • Issue: 2
  • Volume: 52
A. Rehman, M.T. Javed, M. F. Qamar, A. I. Aqib, I. Ahmed, A. Sikandar, M. K. Rafique, T. Hussain, M. Kashif, M. Riaz, L. Ahmad, M. Nazar & M.F.A. Kulyar Page: 177 - 185

Discrepancies in sensitivity and specificities of tests (enzyme-linked immunoassay (ELISA) and tuberculin skin test (TST)), prevalence, and potential risk factors associated with Mycobacterium avium subsp. paratuberculosis (MAP) of bovine were hypothesized to affect its control. Keeping PCR as the gold…

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Rumen microbial diversity of Bonsmara cattle using amplicon sequencing during a 120-day growth trial

  • 2022
  • Issue: 2
  • Volume: 52
D.A. Linde, E. van Marle-Köster, C.J.L. du Toit, M.M. Scholtz & D. Schokker Page: 148 - 161

Improved understanding of the microbial populations during intensive feeding of feedlot cattle holds potential for optimizing production efficiency. Ionophores are used to increase the production and efficiency of ruminants and are commonly used in South African feedlots. Bonsmara bull calves…

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Dry sugarcane yeast and urea could replace soybean meal in the diet of buffalo heifers

  • 2022
  • Issue: 2
  • Volume: 52
D.O. Lima, A.L.R. Magalhães, D.M. de Lima Júnior, F.F.R. de Carvalho, M.L.M.W. Neves, M.V.G. da Silva & R.A.S. Pessoa Page: 142 - 147

The aim of this study was to examine the effects of replacing soybean meal (SBM) with increasing levels (0%, 33%, 67%, and 100%) of sugarcane yeast and urea on the intake, performance, and feeding behaviour of buffalo heifers. Twenty Murrah…

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Influence of graded level of salt and maturation times on quality traits of beef and pork sun-dried meat: A test pilot

  • 2022
  • Issue: 2
  • Volume: 52
M. Eger, E.L. Kern, S.T. Carvalho, P.L.O. Carvalho, J.L. Genova & M.A. Grando Page: 134 - 141

The goal of this study was to assess the qualitative and sensorial characteristics of beef and pork sun-dried meat (SDM) with different salt (NaCl) levels (6%, 8% and 10%) and curing times (30 and 40 h). Samples from the beef…

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An exogenous fibrolytic enzyme mixture enhances in vitro ruminal degradability of red grape pomace by-product

  • 2022
  • Issue: 2
  • Volume: 52
G. Mhlongo, C.M. Mnisi, V. Mlambo & B. Dlamini Page: 126 - 133

Usefulness of red grape pomace (GP) by-product in ruminant rations is restricted by its high fibre content. Pre-treatment with exogenous carbohydrases may partly resolve this problem. Therefore, the effects of various levels of an exogenous fibrolytic enzyme mixture (Viscozyme® L)…

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Bone, microbiological and intestinal characteristics of piglets fed diets containing Lithothamnium calcareum

  • 2022
  • Issue: 1
  • Volume: 52
J. L. Genova, N. T. E. Oliveira, C. P. Scherer, P. L. O. Carvalho, A. B. S. Costa, S. M. B. Artoni, A. C. G. Júnior, L. B. A. Santos, S. T. Carvalho & J. Bortoluzzi Page: 98 - 110

The aim of this study was to assess the effect of calcitic seaweed (CS), calcitic limestone (CL) and monodicalcium phosphate (DP) fed to piglets in various combinations on their gastrointestinal tract and bones. A total of 128 piglets (21 days…

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Effects of flushing and various doses of β-Carotene and vitamin E applications on the reproductive performance of ewes

  • 2022
  • Issue: 1
  • Volume: 52
S. Ozis Altincekic, M. Koyuncu & S. Duru Page: 90 - 97

The aim of this study was to determine whether fertility could be enhanced in Kıvırcık ewes during the anoestrous period by flushing or by administering an injectable (Ovostim) containing β-Carotene and vitamin E. Three-year-old Kıvırcık ewes (n = 99) were…

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Quality of ram semen cryopreserved in egg yolk extender supplemented with myricetin

  • 2022
  • Issue: 1
  • Volume: 52
L.C.P. Arruda, R.A.J.A. Silva, F.C.C. Mergulhão, M.M. Monteiro, J.A.S. Costa, A.M. Batista, P.L.J. Monteiro Júnior, D.C.M. Seal & M.M.P. Guerra Page: 77 - 89

The aim of this study was to evaluate the ability of the antioxidant myricetin to protect ovine spermatozoa during freezing-thawing. Five semen pools, obtained from four rams, were diluted and frozen in Tris-egg yolk extender (5% glycerol) supplemented with myricetin…

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