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"Experientia docet" - Experience is the best teacher

Effect of taurine and bile acid supplementation and their interaction on performance, serum components, ileal viscosity and carcass characteristics of broiler chickens

  • 2016
  • Issue: 4
  • Volume: 46
M.H. Alzawqari, H.H. Al-Baadani, I.B. Alhidary, A.N. Al-Owaimer & A.M. Abudabos Page: 448 - 457

A 3 × 3 factorial experiment (4 pens/treatment, 10 birds/pen) was conducted with 3 levels of supplemental taurine (Tau) (0.0, 0.25 and 0.50%) and 3 levels of dissected bile acid (DBA): 0.0, 0.25 and 0.50% of the diet were arranged…

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Geographical influence of heat stress on milk production of Holstein dairy cattle on pasture in South Africa under current and future climatic conditions

  • 2016
  • Issue: 4
  • Volume: 46
R. Williams, M. M. Scholtz & F. W. C. Neser Page: 441 - 447

Heat stress, as a consequence of global warming, can have a profound effect on dairy cattle in South Africa. In this paper, current milk production data of Holstein dairy herds on pasture in South Africa, together with climate variables related…

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Mangosteen peel can reduce methane production and rumen biohydrogenation in vitro

  • 2016
  • Issue: 4
  • Volume: 46
P. Shokryazdan, M.A. Rajion, Y.M. Goh, I. Ishak, M.F. Ramlee, M. Faseleh Jahromi & M. Ebrahimi Page: 419 - 431

Mangosteen peel (MP), an agricultural by-product of tropical countries, has been reported to contain condensed tannins and saponins, which can affect rumen microbes to reduce enteric methane emission. In the present study, the effects of mangosteen peel on in vitro…

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Productivity, chemical composition and ruminal degradability of irrigated Napier grass leaves harvested at three stages of maturity

  • 2016
  • Issue: 4
  • Volume: 46
M.D. Rambau, F. Fushai & J.J. Baloyi Page: 398 - 408

The effect of the stage of maturity on the productivity, chemical composition, and ruminal degradability of Napier grass (Pennisetum purpureum) leaves under irrigation was studied. Samples were collected at three stages of maturity, at intervals of four weeks starting from…

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Effects of types and doses of yeast on gas production and in vitro digestibility of diets containing maize (Zea mays) and lucerne (Medicago sativa) or oat hay

  • 2016
  • Issue: 4
  • Volume: 46
A.M.A. Elmasry G.D. Mendoza, L.A. Miranda, G. Vázquez, A.Z.M. Salem & P.A. Hernández Page: 391 - 397

Two yeast products formulated with Saccharomyces cerevisiae were evaluated at the same colony-forming units (CFUs) per gram of substrate. Samples of maize, lucerne and oat hays were mixed (0.5 kg) to a proportion of 80% forage (lucerne or oat) with…

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Effects of various pre-slaughter conditions on pig carcasses and meat quality in a low-input slaughter facility

  • 2016
  • Issue: 4
  • Volume: 46
N. Čobanović, M. Bošković, D.Vasilev, M. Dimitrijević, N. Parunović, J.Djordjević & N. Karabasil Page: 380 - 390

The aim of this study was to determine the effects of gender, slaughter weight, stocking density, lairage time and season on carcass and meat quality parameters in a low-input production system. The study was conducted on 400 slaughter pigs (200…

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Effects of Prosopis laevigata pods on growth performance, ruminal fermentation and blood metabolites in finishing lambs

  • 2016
  • Issue: 4
  • Volume: 46
L.Y. Peña-Avelino, J. M. Pinos-Rodríguez, B. I. Juárez-Flores, & L. Yáñez-Estrada Page: 360 - 365

Twenty-one non-castrated male Rambouillet lambs (21±1.44 kg body weight) were used to evaluate the effects of increasing dietary levels of Prosopis laevigata pods (PLP) in a 72 d growth performance trial. Three dietary treatments defined as PLP0 (control, 0 g…

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Comparison of shear force tenderness, drip and cooking loss, and ultimate muscle pH of the loin muscle among grass-fed steers of four major beef crosses slaughtered in Namibia

  • 2016
  • Issue: 4
  • Volume: 46
P. Strydom, J. Lühl, C. Kahl, & L.C. Hoffman Page: 348 - 359

The authors investigated the effects of breed (Brahman, Bonsmara, Simbrah and Simmental crosses) and post-mortem ageing on meat tenderness, purge, cooking loss and ultimate pH of the longissimus muscle under commercial production and slaughter conditions of the Namibian beef export…

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Effects of various concentrations of gonadotropins and 17β estradiol on the in vitro maturation of cattle oocytes selected using brilliant cresyl blue staining

  • 2016
  • Issue: 3
  • Volume: 46
K.P.M. Lekola, J.W. Ng’ambi, M. Nkadimeng, M.L. Mphaphathi & T.L. Nedambale Page: 321 - 326

The objective of this study was to determine the in vitro maturation rate of cattle oocytes selected with brilliant cresyl blue (BCB) stain, in tissue culture medium 199 (TCM 199) supplemented with various concentrations of hormones. Oocytes were retrieved from…

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Effect of micronized zeolite addition to lamb concentrate feeds on growth performance and some blood chemistry and metabolites

  • 2016
  • Issue: 3
  • Volume: 46
N.N. Toprak, A. Yılmaz, E. Öztürk, O. Yigit & F. Cedden Page: 313 - 320

This study was conducted to determine the effects of the addition of micronized zeolite (MZ) on the fattening performance, blood parameters, faecal ash and nitrogen levels of lambs fed concentrate feeds intensively. For two months 25 four-month-old Merino x Ile…

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Genome-wide identification of breed-informative single-nucleotide polymorphisms in three South African indigenous cattle breeds

  • 2016
  • Issue: 3
  • Volume: 46
A.A. Zwane, A. Maiwashe, M.L. Makgahlela, A. Choudhury, J.F. Taylor & E. van Marle-Köster Page: 302 - 312

Access to genotyping assays enables the identification of informative markers that discriminate between cattle breeds. Identification of these markers can assist in breed assignment, improvement and conservation. The objective of this study was to identify breed informative markers to discriminate…

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Effects of stocking density on growth performance, carcass grade and immunity of pigs housed in sawdust fermentative pigsties

  • 2016
  • Issue: 3
  • Volume: 46
K.H. Kim, E.S. Cho, K.S. Kim, J.E. Kim, K.H. Seol, S.J. Sa, Y.M. Kim & Y.H. Kim Page: 294 - 301

This study determined the effect of space allowance on performance, carcass grade and physiological variables of pigs reared in sawdust fermentative pigsties. A total of 699 crossbred (Landrace × Yorkshire × Duroc) pigs were housed in sawdust fermentative pigsties and…

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Interactions of genotype, housing and dietary calcium in layer performance, eggshell quality and tibia characteristics

  • 2016
  • Issue: 3
  • Volume: 46
E. Tůmová, J. Vlčková, V. Charvátová, O. Drábek, V. Tejnecký, M. Ketta & D. Chodová Page: 285 - 293

The study was designed to evaluate the interactions in performance, eggshell quality and tibia traits of two laying hen genotypes, namely a commercial hybrid, Lohmann (LSL), and a traditional breed, the Czech Hen (CH), housed in conventional cages and on…

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Effects of Thymus vulgaris and Mentha pulegium on colour, nutrients and peroxidation of meat in heat-stressed broilers

  • 2016
  • Issue: 3
  • Volume: 46
A. Pirmohamammadi, M. Daneshyar, P. Farhoomand, J. Aliakbarlu & F. Hamian Page: 278 - 284

This study was designed to investigate the effects of Thymus vulgaris (thyme) and Mentha pulegium (mentha) powders on meat colour, nutrient composition and malondialdehyde (MDA) where broiler chickens were under heat stress. Two hundred one-day-old male chicks were used in…

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