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"Experientia docet" - Experience is the best teacher

The South African Society for Animal Science (SASAS) has changed the way the journal submission process is handled. An Online Journal Management System  had been developed in collaboration with the Agricultural Research Council (ARC) 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 sajas.eic@gmail.com.

Impact Factor: 1.055

Evaluation of polyherbal methionine and choline in feedlot rations for lambs

  • 2020
  • Issue: 5
  • Volume: 50
J.R. Bárcena-Gama, J.A. Martínez-Aispuro, G.D. Mendoza-Martínez, J.L. Cordero-Mora, M.T. Sánchez-Torres, J.L. Figueroa-Velasco & M.A. Ayala-Monter Page: 731 - 737

Requirements of lambs for choline and methionine have not been clearly established, but because of their metabolic relationship, the availability of these two nutrients may affect protein synthesis and energy balance. Therefore, a trial was carried out to evaluate the…

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Performance and egg quality of commercial laying hens fed with various levels of protected sodium butyrate

  • 2020
  • Issue: 5
  • Volume: 50
M.F. Pires, N.S.M. Leandro, D.V. Jacob, F.B. Carvalho, H.F. Oliveira, J.H. Stringhini, S.F. Pires, H.H.C. Mello & D.P. Carvalho Page: 758 - 765

Two experiments were conducted to evaluate the effect of including protected sodium butyrate (PSB) in the diets of laying hens of advanced age on productive performance and egg quality. In experiment 1, a total of 320 Dekalb White 61-week-old laying…

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Evaluation of serum analytes in pregnant and non-pregnant dairy cows as indicators of pregnancy

  • 2020
  • Issue: 5
  • Volume: 50
S. Abbas, M.S. Yousaf, I. Ahmad, H. Rehman, A.K. Mahmood, S. Ashraf, R.S. Blouch, A.H. Shahzad, Y. Nak & D. Nak Page: 766 - 772

This study was conducted to reveal the dynamics of haematological indicators in pregnant and non-pregnant dairy cows. Sixty multiparous healthy dairy cows were divided into four groups based on the length of time they had been pregnant, namely first, second…

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Inclusion of shrimp waste meal in diet of free-range chickens

  • 2020
  • Issue: 6
  • Volume: 50
C.O. Brito, C.M. Silva, G.R. Lelis, A. Corassa, J.M.D.S. Velarde, M.A.S. Silva, G.M. Oliveira Júnior, A.P. Del Vesco & V. Ribeiro Júnior Page: 773 - 778

Shrimp waste meal (SWM) is a by-product from the processing of shrimp for human consumption. The value of SMW in feeding poultry is not well documented. The objective of this study was to determine the energy value and optimal inclusion…

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Evaluation of synchronization protocols and methods of early pregnancy diagnosis in dairy cattle

  • 2020
  • Issue: 6
  • Volume: 50
A.H. Shahzad, A. Sattar, N. Ahmad, I. Ahmad, M.S. Yousaf, S. Abbas, R.S. Blouch, D. Nak, Y. Nak, D.L. Ray & W.J. Silvia (deceased) Page: 793 - 799

The studies aimed to evaluate the pregnancy rate (PR) for timed artificial insemination (TAI) after G7G-Ovsynch, modified G7G-Ovsynch (MG7G-Ovsynch) and Ovsynch protocols and to assess the accuracy of using pregnancy-associated glycoproteins (PAGs) and plasma progesterone (P4) in pregnancy diagnosis compared…

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Adding wheat and rapeseed meal to corn-soy diets affects intestinal morphology and nutrient digestibility in broilers

  • 2020
  • Issue: 6
  • Volume: 50
E. Amirahmadi, A.R. Safamehr, A. Nobakht & Y. Mehmannavaz Page: 800 - 806

This study was conducted to investigate the effects of thyme essential oil and enzyme supplementation on rations with two different energy (wheat or corn) and protein resources (soy or rapeseed meals) on gut morphology and protein digestibility of broiler chickens.…

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Identifying sequence variation in cation channel sperm associated genes in Cape mountain zebra (Equus zebra zebra)

  • 2020
  • Issue: 6
  • Volume: 50
R.M. Smith, A. Kotzé, J.P. Grobler & D.L. Dalton Page: 807 - 813

The Cape mountain zebra (Equus zebra zebra) has recovered from near extinction over more than eight decades. While their numbers have increased, populations remain isolated with low genetic diversity. With more than 75 new populations being founded and more than…

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Effects of feed particle size on energy values for broiler chickens at various ages

  • 2020
  • Issue: 6
  • Volume: 50
R. Frank, P.C. Pozza, C. Scherer, R.A. Schöne, A.S. Avila, P.L.O. Carvalho, J. Broch, C. Eyng & R.V. Nunes Page: 830 - 839

The objective of this study was to evaluate the effects of various geometric mean diameters (GMDs) of particles of corn, pelleted soybean meal and a corn-soy mixture in the proportion of 70% and 30%, respectively, on the nutritional value of…

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Dietary inclusion of ensiled avocado oil cake affects growth, nutrient digestion, and carcass characteristics of pigs

  • 2020
  • Issue: 6
  • Volume: 50
M.L. Seshoka, P.J. Fourie, A.T. Kanengoni, I.M.M. Malebana, R.S. Thomas & B.D. Nkosi Page: 847 - 854

In this experiment, the effects were evaluated of various dietary inclusion levels of avocado oil cake (AOC) silage on growth performance, nutrient digestibility, and carcass characteristics in pigs. A mixture of 70% AOC, 25% wheat bran, and 5% sugarcane molasses…

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