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"Experientia docet" - Experience is the best teacher

Importance and implications of antibiotic resistance development in livestock and wildlife farming in South Africa: A Review

  • 2018
  • Issue: 3
  • Volume: 48
M. S. van den Honert, P. A. Gouws & L. C. Hoffman Page: 401 - 412

Antibiotic resistance (ABR) is regarded as one of today’s major global health challenges. The development of ABR in nature is a complex phenomenon with many influencing factors, of which the farming industry is labelled a significant contributor. The transfer of…

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Effect of herbal choline and rumen-protected methionine on lamb performance and blood metabolites

  • 2018
  • Issue: 3
  • Volume: 48
V. Rodríguez-Guerrero, A. C. Lizarazo, S. Ferraro, N. Suárez, L. A. Miranda & G. D. Mendoza Page: 427 - 434

Twenty-four lambs (Pelibuey x East Friesian), weighing 22.7 ± 3.2 kg, were fed a basal diet of corn silage, oat hay, alfalfa hay, and concentrate (60% forage and 40% concentrate). Treatments consisted of oral doses of rumen-protected methionine (RPM) (0…

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Chemical composition of Lablab purpureus and Vigna unguiculata and their subsequent effects on methane production in Xhosa lop-eared goats

  • 2018
  • Issue: 3
  • Volume: 48
S. Washaya, J. Mupangwa & V. Muchenje Page: 445 - 458

The objective of this study was to evaluate the nutritive value and anti-nutrient contents of Lablab purpureus (Lablab) and Vigna unguiculata (cowpea) and their effects on methane production in goats. Legume forages were grown and harvested at three stages of…

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Effects of sex and stocking density on the performance of broiler chickens in a sub-tropical environment

  • 2018
  • Issue: 3
  • Volume: 48
M. A. Madilindi, A. Mokobane, P. B. Letwaba, T. S. Tshilate, C. B. Banga, M. D. Rambau, E. Bhebhe & K. Benyi Page: 459 - 468

The current study investigated the effects of sex and stocking density and their interaction on growth performance and carcass characteristics of broiler chickens in a semi-arid sub-tropical environment. A total of 1008 day-old Cobb Avian48 chicks, namely 462 males and…

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A novel flush technique to simulate natural dispersal of spermatozoa in the female reproductive tract and expedite motility assessment of fresh ejaculated Merino (Ovis aries) sperm

  • 2018
  • Issue: 3
  • Volume: 48
N. H. Boshoff, H. Lambrechts, L. Maree, S. W. P. Cloete & G. van der Horst Page: 469 - 476

Motility is an important criterion in the assessment and quantification of the quality of ejaculated and epididymal sperm samples. Ovine sperm spermatozoa are particularly susceptible to cryodamage, and shortening the interval from collection to cryostorage may potentially minimize the negative…

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Effects of replacing soybean meal with alternative sources of protein on nutrient digestibility and energy value of sheep diets

  • 2018
  • Issue: 3
  • Volume: 48
K. Zagorakis, D. Liamadis, Ch. Milis, V. Dotas & D. Dotas Page: 489 - 496

The study determined the potential of eight locally produced protein sources to replace soybean meal (SBM) in the diet of sheep. Three in vivo digestibility trials were conducted using a Latin square (3x3, 4x4 and 4x4) experimental design with castrated…

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Chemical composition, organic matter digestibility and energy content of apple pomace silage and its combination with corn plant, sugar beet pulp and pumpkin pulp*

  • 2018
  • Issue: 3
  • Volume: 48
I. Ülger, M. Kaliber, T. Ayaşan & O. Küçük Page: 497 - 503

The objective of this research was to investigate and compare the quality of apple pomace silage ensiled with corn plant, sugar beet pulp, and pumpkin pulp for nutrient compositions. Fresh samples of apple pomace, corn plant, sugar beet pulp, pumpkin…

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Orelha de Elefante Mexicana (Opuntia stricta [Haw.] Haw.) spineless cactus as an option in crossbred dairy cattle diet

  • 2018
  • Issue: 3
  • Volume: 48
R. C. Silva, M. A. Ferreira, J. C. V. Oliveira, D. C. Santos, M. A. S. Gama, J. C. C. Chagas, J. G. Inácio, E. T. S. Silva & L. G. R. Pereira Page: 516 - 525

A new genotype of spineless cactus is being used in the diets of dairy cattle that are raised in semi-arid regions. However, little is known about its nutritional value. This study aimed to evaluate the effects of replacing Miúda (Nopalea…

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Effects of vitamin B6 and tryptophan on pork quality and amount of lean meat in gilts of 70–100 kg bodyweight

  • 2018
  • Issue: 3
  • Volume: 48
L.D. Castilha, L.A.C. Esteves, L.P. Bonagurio, L.M.D. Huepa, M.R. Fachinello, M.S.S. Pozza, A.C. Furlan & P.C. Pozza Page: 535 - 544

Supplementary tryptophan in pig diets has shown improvement in carcass traits and pork quality by reducing the animals' response to stress at slaughter. Vitamin B6 could enhance this response since it acts as an enzymatic cofactor of many tryptophan pathways.…

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Evaluation of golden needle mushroom (Flammulina velutipes) stem waste on pullet performance and immune response

  • 2018
  • Issue: 3
  • Volume: 48
S.U. Mahfuz, M. Chen, J.S. Zhou, S. Wang, J. Wei, Z. Liu & H. Song Page: 563 - 571

The driving force behind the interest in using natural herbs in poultry production is to eliminate the use of low-dose antibiotics. Therefore, this study was carried out to investigate the effect of Flammulina velutipes mushroom waste (FVW) on performance parameters,…

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Application of the climate analogue concept in assessing the probable physiological and haematological responses of Friesian cattle to changing and variable climate in the Kenyan Highlands

  • 2018
  • Issue: 3
  • Volume: 48
J.C. Wangui, B.O. Bebe, J.O. Ondiek & S.O. Oseni Page: 572 - 582

Friesian cattle are considered the most sensitive to climate change-induced thermal stress and remain the major dairy breed in Kenya. This study applied the climate analogue concept to predict probable physiological and haematological responses of Friesian cattle in the 2050s…

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