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"Experientia docet" - Experience is the best teacher

The South African Society for Animal Science (SASAS) has recently undertaken the task of changing the way the journal submission process is handled. In collaboration with the Agricultural Research Council (ARC) it has developed an Online Journal Management System to facilitate the Journal Submission & Review Process.

Authors are kindly requested to submit all future articles for publication in the SA Journal of Animal Science via the Online Journal Management system.

If you experience any problems with the system, please contact the Editor at jvryssen@up.ac.za

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Gene expression and maturation evaluation of sheep oocytes cultured in medium supplemented with natural antioxidant source

  • 2018
  • Issue: 2
  • Volume: 48
I. A. H. Barakat, R. A. Alajmi, K. M. A. Zoheir, L. M. Salem & A. R. Al-Hemidiy Page: 261 - 270

Any improvements in assisted reproduction techniques at experimental level are important in in vitro production of large animal and human embryos. The in vitro embryo production system includes three major steps, namely in vitro maturation of the primary oocytes, in…

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Effect of Acacia angustissima leaf meal on performance, yield of carcass components and meat quality of broilers

  • 2018
  • Issue: 2
  • Volume: 48
S. Ncube, T.E. Halimani, E.V.I. Chikosi & P.T. Saidi Page: 271 - 283

The study determined the appropriate levels of including Acacia angustissima leaf meal in broiler diets for optimum performance, carcass part yield, and meat quality characteristics. One hundred and fifty broiler chicks were allocated to 0%, 5%, and 10% A. angustissima…

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Feed intake, growth performance and carcass traits of broilers fed diets with various inclusion levels of baobab seed oilcake

  • 2018
  • Issue: 2
  • Volume: 48
P. Chisoro, T. T. Nkukwana, J. F. Mupangwa & T. P. Mabusela Page: 284 - 294

The effects of increasing dietary inclusion levels of baobab seed oilcake (BSOC) on the growth performance, carcass characteristics, and yield in Ross 308 broiler chicks were assessed. Dietary treatments (T) consisted of four levels of BSOC: T1, control (0% BSOC);…

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Sinai and Norfa chicken diversity revealed by microsatellite markers

  • 2018
  • Issue: 2
  • Volume: 48
M. Soltan, S. Farrag, A. Enab, E. Abou-Elewa, S. El-Safty & A. Abushady Page: 307 - 315

The present study aimed to outline the population differentiation of Sinai and Norfa chicken, native to Egypt, with microsatellite markers. Twenty microsatellite loci recommended by the Food and Agriculture Organization (FAO) were used. Fifty eight birds were sampled (29 for…

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Effects of grape pomace and vitamin E on performance, antioxidant status, immune response, gut morphology and histopathological responses in broiler chickens

  • 2018
  • Issue: 2
  • Volume: 48
S. K. Ebrahimzadeh, B. Navidshad, P. Farhoomand & F. Mirzaei Aghjehgheshlagh Page: 324 - 336

We investigated the effects of grape pomace (GP) and vitamin E on the performance, antioxidant status, immune response, gut morphology and histopathological responses in broiler chickens. Two hundred and fifty male broiler chickens (Ross 308) were allocated to five dietary…

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External stimuli help restore post-partum ovarian activity in Pelibuey sheep

  • 2018
  • Issue: 2
  • Volume: 48
S. Fraire-Cordero, J. Salazar-Ortiz, C. Cortez-Romero, P. Pérez-Hernández, C.A. Herrera-Corredor & J. Gallegos-Sánchez Page: 337 - 343

Post-partum anestrus is a problem on farms, and its duration depends on the frequency and intensity of suckling which affects reproduction and production efficiency to become a determining economic factor. The aim of this study was to determine the post-partum…

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Effect of management system and dietary yeast autolysate on the performance, slaughter and carcass characteristics of partridges (Alectoris chukar)

  • 2018
  • Issue: 2
  • Volume: 48
M. Bolacali, M. Küçük, T. Tufan & L. Aslan Page: 344 - 352

This study was conducted to determine the effects of management system (a floor housing (FH) versus a free-range housing (FRH) system) and dietary yeast autolysate (Saccharomyces cerevisiae) (1% versus 2% dietary supplement) on the performance, slaughter and carcass characteristics of…

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Whole genome study of linkage disequilibrium in Sahiwal cattle

  • 2018
  • Issue: 2
  • Volume: 48
H. Mustafa, N. Ahmad, H. J. Heather, K. Eui-soo, W. A. Khan, A. Ajmal, K. Javed, T. N. Pasha, A. Ali, J. J. Kim & T. S. Sonstegard Page: 353 - 360

The linkage disequilibrium (LD) is an important tool to study quantitative trait locus (QTL) mapping and genetic selection. In this study, we identified the extent of linkage disequilibrium (LD) in Sahiwal (n = 14) cattle using the bovine high density…

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Milk progesterone on day 5 following insemination in the dairy cow: associated metabolic variables and reproductive consequences

  • 2018
  • Issue: 2
  • Volume: 48
L. Y. Yan, R. S. Robinson, Z. D. Shi & G. E. Mann Page: 361 - 368

Despite the importance of progesterone on the fertility of lactating dairy cows, the factors that affect post ovulatory progesterone concentration are still unclear. Thus, the aim of the present study was to identify factors associated with the post ovulatory progesterone…

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Dose-dependent effects of luteinizing hormone and follicle stimulating hormone on in vitro maturation, apoptosis, secretion function and expression of follicle stimulating hormone receptor and luteinizing hormone receptor of sheep oocytes

  • 2018
  • Issue: 2
  • Volume: 48
S. Wei, Y. Deng, L. Lai, H. Liang & Z. Gong Page: 369 - 378

The present study compared the effects of follicle stimulating hormone (FSH) and luteinizing hormone (LH) on in vitro maturation (IVM), apoptosis, and secretion function in sheep oocytes, as well as gene expressions of the receptors (FSHR, LHR, and GnRHR) in…

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Probiotic Bacillus species and Saccharomyces boulardii improve performance, gut histology and immunity in broiler chickens

  • 2018
  • Issue: 2
  • Volume: 48
M. Manafi, M. Hedayati & S. Mirzaie Page: 379 - 389

The aim of this study was to compare the effects of a new multispecies probiotic containing four Bacillus species and Saccharomyces boulardii (Microguard®) with a commercial probiotic (Protexin®) and a commonly used antibiotic in broilers. Six hundred one-day-old male Ross…

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Effect of different levels of sunflower meal and multi-enzyme complex on performance, biochemical parameters and antioxidant status of laying hens

  • 2018
  • Issue: 2
  • Volume: 48
P. Baghban-Kanani, B. Hosseintabar-Ghasemabad, S. Azimi-Youvalari, A. Seidavi, T. Ayaşan, V. Laudadio & V. Tufarelli Page: 390 - 399

This study was designed to evaluate the effects of different sunflower meal (Helianthus annus; SFM) levels and a multi-enzyme complex (Natuzyme P50) on performance, biochemical parameters and antioxidant status of laying hens. A total of 288 Hy-Line W-36 laying hens…

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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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