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"Experientia docet" - Experience is the best teacher

Effect of diets differing in rumen soluble nitrogen on utilization of poor-quality roughage by sheep

  • 2015
  • Issue: 5
  • Volume: 45
A.M. Mentz, W.A. van Niekerk, A. Hassen, R.J. Coertze & B.S.Gemeda Page: 528 - 537

This study investigated the effects of replacing rapid-release nitrogen (N) from urea with a graded level of slow-release N (Optigen® II) source on intake, digestibility, rumen fermentation and microbial protein synthesis, when sheep were fed a poor-quality roughage diet. Five…

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Environmental and genetic factors affecting faecal worm egg counts in Merinos divergently selected for reproduction

  • 2015
  • Issue: 5
  • Volume: 45
Z. Mpetile, S.W.P. Cloete, A.C.M. Kruger & K. Dzama Page: 510 - 520

Infestation with gastrointestinal nematodes is probably among the most pervasive problems in small-stock production worldwide. Faecal worm egg count (FWEC) has been reported as an indirect measure of parasite resistance in livestock production. Environmental and genetic factors of FWEC were…

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Estimation of organic matter digestibility, metabolizable energy, phenolic compounds and antioxidant activity of stems and seeds of the Juncus acutus plant in ruminant nutrition

  • 2015
  • Issue: 5
  • Volume: 45
F. Erdem, N. Cetinkaya, C. Nisbet & E. Altin Page: 502 - 509

The objectives of the present study were to determine the organic matter digestibility (OMD), metabolizable energy (ME), antioxidant activity and total phenolic and flavonoid concentrations of stems and seeds of Juncus acutus. Stem and seed samples were collected from Hamsiloz…

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Genetic variability of bovine GHR, IGF-1 and IGFBP-3 genes in Indian cattle and buffalo

  • 2015
  • Issue: 5
  • Volume: 45
K.P. Ramesha, Akhila Rao, M. Basavaraju, G.R. Geetha, M.A. Kataktalware & S. Jeyakumar Page: 485 - 493

The identification of genetic polymorphisms in the genes that play a crucial role in regulatiing growth and development of livestock enables us to evaluate the biological similarities and to acquire a better perspective of quantitative traits. The present study was…

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Comparative analysis of the in vitro fermentation of wasted cladodes (Opuntia spp.), lucerne and oat hays

  • 2015
  • Issue: 5
  • Volume: 45
O.E. Del Razo, I. Almaraz, V. Espinosa, R. Soriano, L.A. Miranda, L. Arias, L. Guan, G. Buendía & A. Pelaez Page: 470 - 475

Wasted cladodes from the cactus pear (Opuntia ficus spp.) are an environmental nuisance, and alternative measures are required to utilize this product, such as utilizing it as a ruminant feedstuff. By simulating ruminal fermentation through in vitro gas production, the…

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Utility of the browser’s behavioural and physiological strategies in coping with dietary tannins: Are exogenous tannin-inactivating treatments necessary? Review

  • 2015
  • Issue: 5
  • Volume: 45
V. Mlambo, U. Marume & C.S. Gajana Page: 441 - 451

The desire to reduce feeding costs in small-ruminant production systems has led to increased reliance on non-conventional locally available browse products as protein supplements. Browse products contain variable quantities of tannins, whose nutritional effects on the animal can be positive…

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Dietary effects of chitosan and buckwheat (Fagopyrum esculentum) on the performance and serum lipid profile of broiler chicks

  • 2015
  • Issue: 4
  • Volume: 45
M.A. Sayed, M.T. Islam, M.M. Haque, M.J.H. Shah, R. Ahmed, M.N. Siddiqui & M.A. Hossain Page: 429 - 440

This study was conducted to evaluate the effects of different levels of buckwheat (Fagopyrum esculentum) alone or in combination with chitosan, in broiler diets, on the growth, feed intake and serum lipid profile of broilers. Starting as 10-day olds, 144…

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Effects of prebiotics and probiotics on the performance and bacterial colonization of broiler chickens

  • 2015
  • Issue: 4
  • Volume: 45
A.M. Abudabos, H.A. Al-Batshan & M.A. Murshed Page: 419 - 428

A study was undertaken to evaluate the effects of Neoxyval (antimicrobial growth promoter (AGP)), TechnoMos (prebiotic), GalliPro (probiotic) and a mixture of TechnoMos and GalliPro (symbiotic) on growth performance, carcass yield, histomorphology and intestinal bacterial counts in broilers (0 d…

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Milk fatty acid composition and conjugated linoleic acid content of Jersey and Fleckvieh x Jersey cows in a pasture-based feeding system

  • 2015
  • Issue: 4
  • Volume: 45
B. Sasanti, S. Abel, C.J.C. Muller, W.C.A. Gelderblom & A. Schmulian Page: 411 - 418

A number of fatty acids (FAs), such as omega-3, omega-6 and conjugated linoleic acid (CLA), which are present in the milk from dairy cows are considered essential FAs and beneficial nutrients for humans. The aim of the study was to…

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Effects of niacin supplementation (40 weeks) and two dietary levels of concentrate on performance, blood and fatty acid profiles of dairy cattle

  • 2015
  • Issue: 4
  • Volume: 45
C. Rauls, U. Meyer, L. Hüther, D. von Soosten, A. Kinoshita, J. Rehage, G. Breves & S. Dänicke Page: 395 - 410

The present study was conducted to investigate the effects of 24 g niacin (nicotinic acid (NA)) supplementation over 40 weeks with two forage-to-concentrate ratios (60% concentrate vs. 30% in the total diet) on performance variables of energy metabolism such as…

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Fatty acid composition of beef steers as affected by diet and fat depot

  • 2015
  • Issue: 4
  • Volume: 45
C. Mapiye, P. Vahmani, J.L. Aalhus, D.C. Rolland, V.S. Baron, T.A. McAllister, H.C. Block, B. Uttaro & M.E.R. Dugan Page: 386 - 394

Subcutaneous and perirenal fatty acid (FA) profiles were compared in steers fed a control diet (70 : 30 red clover silage (RC) : barley concentrate), a diet with sunflower seed (SS) substituted for barley, and diets with 15% or 30%…

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Effects of coriander (Coriandrum sativum L.) seed powder and extract on performance of broiler chickens

  • 2015
  • Issue: 4
  • Volume: 45
M. Naeemasa, A.A. Alaw Qotbi, A. Seidavi, D. Norris, D. Brown & M. Ginindza Page: 371 - 378

This study was conducted to investigate the effects of different levels of coriander (Coriandrum sativum) seed powder and extract on the performance and carcass characteristics of broiler chickens. A total of 420 day-old broiler chicks (Ross 308) were allocated randomly…

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