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"Experientia docet" - Experience is the best teacher

Physico-chemical characteristics of meat after dietary supplementation of lambs with essential oils and calcium malate

  • 2023
  • Issue: 4
  • Volume: 53
M.A. Ortiz-Heredia, J.R. Bárcena-Gama, P.A. Martínez-Hernández, J de D. Guerrero-Rodríguez, S.S. González-Muñoz, O.V. Vázquez-Mendoza Page: 541 - 549

The objective of this study was to determine the effect of a mixture of essential oils (EO), calcium malate (CM), or their combination (EO + CM) on the physico-chemical characteristics of lamb meat. A total of 36, two-month-old, 20 ±…

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Composition, nitrate and nitrite levels, and antioxidant activity of milk from agroecological and conventional systems

  • 2022
  • Issue: 3
  • Volume: 52
M. Figueiredo-Paludo, M.S. dos Santos-Pozza, R.C. da Silva Junior, J.A. Horst, J.A.C. Osorio, L.C.V. Ítavo, F.S. dos Santos & G.T. dos Santos Page: 259 - 265

Agroecological dairy production systems are gaining attention worldwide. However, few studies have compared the quality of bovine milk produced in these systems with that produced in conventional dairy production systems. In view of the different farming practices, it was expected…

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Nutritional characteristics of meat from lambs fed diets containing mulberry hay

  • 2019
  • Issue: 1
  • Volume: 49
L.G.A. Cirne, A.G.S. Sobrinho, E.A. Oliveira, G.G.P. Carvalho, G.M.B. Moreno, R.L. Valença, F.A. Almeida, V. Endo & N.M.B.L. Zeola Page: 20 - 28

The objective of this study was to evaluate the nutritional characteristics of meat from lambs fed diets containing 0%, 12.5% and 25.0% (dry matter (DM)) mulberry hay as a substitute for the concentrate. Twenty-four feedlot Île-de-France lambs with an average…

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Assessing nutrient adequacy from the crop contents of free-ranging indigenous chickens in rural villages of the Venda region of South Africa

  • 2015
  • Issue: 2
  • Volume: 45
T. Raphulu, C. Jansen van Rensburg & J.B.J. van Ryssen Page: 143 - 152

The aim of the study was to evaluate the nutritional status of scavenging chickens by assessing the composition of their crop contents. The study was conducted on 288 free-ranging indigenous chickens from six adjacent rural villages in Venda region of…

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Chemical composition of hulled, dehulled and naked oat grains

  • 2014
  • Issue: 2
  • Volume: 44
W. Biel, E. Jacyno & M. Kawęcka Page: 189 - 197

The objective of the work was to evaluate the influence of genetic and mechanical removal of hulls from oat grains on their nutrient content. The studies included three cultivars and six lines of oat grains. In grain samples of hulled…

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Chemical features, cholesterol and energy content of table hen eggs from conventional and alternative farming systems

  • 2014
  • Issue: 1
  • Volume: 44
R.M. Radu-Rusu, M.G. Usturoi, A. Leahu, S. Amariei, C.G. Radu-Rusu & I. Vacaru-Opriş Page: 33 - 42

This study was carried out to investigate the effect of conventional farming systems for laying hens (standard cage batteries) and new alternative systems (improved cages and free range), approved by European Union (EU) poultry welfare legislation, on the chemical and…

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The use of near infrared spectroscopy (NIRS) to predict the chemical composition of feed samples used in ostrich total mixed rations

  • 2012
  • Issue: 5
  • Volume: 42
E. Swart, T.S. Brand & J. Engelbrecht Page: 550 - 554

The wet chemical analysis of feed samples is time consuming and expensive. Near infrared spectroscopy (NIRS) was developed as a rapid technique to predict the chemical composition of feeds. The prediction of accuracy of NIRS relies heavily on obtaining a…

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Effects of cladode age on biomass yield and nutritional value of intensively produced spineless cactus for ruminants

  • 2010
  • Issue: 3
  • Volume: 40
J.M. Pinos-Rodríguez, J.C. Velázquez, S.S. González, J.R. Aguirre, J.C. García, G. Álvarez and Y. Jasso Page: 245 - 250

A randomized complete block design with five replications was used to assess biomass yield, in vitro dry matter digestibility (IVDMD) and nutritional value of spineless cactus (Opuntia ficus-indica) produced under drip irrigation and fertilization. Cladodes were harvested from an established…

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Voedingsnavorsing met die weidende dier

  • 1983
  • Issue: 4
  • Volume: 13
E.A.N. Engels Page: 292 - 298

Nutrition research with grazing ruminants. Native pasture is still the main source of feed supply for the sheep and beef cattle industries. Apparently an inadequate intake of digestible nutrients puts a limitation on animal production. Due to the seasonal pattern…

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Urea-ensiled rice straw as a feed for cattle in Thailand

  • 1983
  • Issue: 3
  • Volume: 13
Parnich Tinnimit Page: 203 - 205

Rice-straw was ensiled with a 5-6% urea solution for 3 weeks before being fed. Cattle fed with urea-ensiled rice straw alone can maintain weight. However, to obtain a daily weight gain of 300-450 g in Holstein Friesian heifers (8-12 months…

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Fermentation characteristics and chemical composition of silage made from different ratios of cattle manure and maize residues

  • 1986
  • Issue: 2
  • Volume: 16
L.D. Snyman, R. du Preez & I. Calitz Page: 83 - 86

    Fermentation characteristics and chemical composition of silage made from different ratios of cattle manure and maize residues were investigated. Manure (fresh) obtained from steers fed on a high concentrate diet was ensiled on a laboratory scale with maize…

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