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"Experientia docet" - Experience is the best teacher

Knowledge, attitudes, and practices of farmers on antibiotic use, resistance, and stewardship in food animal production systems in KwaZulu-Natal, South Africa

  • 2023
  • Issue:
  • Volume: 53
L.T. Mokhutsoane & S.Y. Essack Page: 823 - 834

Non-therapeutic use of antibiotics for metaphylaxis, prophylaxis, and growth promotion in food animal production systems contributes to the emergence and spread of antibiotic resistance. Antibiotic resistance can subsequently be transmitted within and between animals, humans, and the environment and consequently…

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Growth, slaughter performance, abdominal visceral organ sizes, and plasma metabolic markers in indigenous, improved, and crossbred growing pigs fed roasted or sprouted cowpea (Vigna unguiculata) diets

  • 2023
  • Issue: 6
  • Volume: 53
M.W. Lubisi, F. Fushai & J.J. Baloyi Page: 809 - 822

Growth, slaughter performance, and blood metabolic markers were evaluated in Windsnyer (W), Large White (LW) × Landrace (LR), and three-way crossbred (W × LW × LR) pigs fed control (soybean cake), sprouted, or roasted iso-nutrient, cowpea, maize-based diets. Twelve male…

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Marek’s disease in backyard chickens of Pakistan: A study of pathological lesions in correlation to viral load

  • 2023
  • Issue: 6
  • Volume: 53
M. Azeem, M. ur Rehman Khan, G. Saleem, M. Hassan Mushtaq Page: 797 - 808

Marek's disease (MD) is an infectious, lymphoproliferative disorder caused by the alpha herpesvirus genus, Mardivirus, serotype 1 (Gallid Herpesvirus 2, or GaHV-2). There is no current information on Marek's disease virus (MDV) pathotypes and serotypes circulating in backyard poultry in…

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Effects of feed form (pellet or mash), corn particle size, and Bacillus-based probiotic supplementation on performance traits and digestive tract health of broiler chickens

  • 2023
  • Issue: 6
  • Volume: 53
I. YousefianAstaneh, M. Chamani, S.N. Mousavi, A.A. Sadeghi, M. AminAfshar Page: 784 - 796

A total of 720 Ross 308, male broiler chicks were used to study the effect of feed form, corn particle size, and probiotic supplementation as a completely randomized block design with 2×2×2 factorial arrangement (eight treatments and five replications). The…

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Effects of rumen undegradable protein source on feed intake and milk yield of Holstein dairy cows

  • 2023
  • Issue: 5
  • Volume: 53
M. Savari, M.S.S. Firouzabadi, F. Mohammadi, R. Abigaba, A. R. Rayshan, A. Gharagozloo & F. Abdollahzadeh Page: 764 - 773

This study was conducted to determine the effects of heat treated-soybean meal, fish meal, meat meal, and an equal blend of fish and meat meal as rumen-ungradable protein (RUP) sources on productive performance, nutrient digestibility, N-utilization efficiency, and blood metabolites…

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Preservation of mannanase Eupenicillium javanicum (BS4) in solid state fermentation using glycerol and polyol

  • 2023
  • Issue: 5
  • Volume: 53
T. Haryati, T. Purwadaria, F. Paulin, A. P. Sinurat & F. Saputra Page: 755 - 763

The digestibility of palm kernel meal can be increased using mannanase. Enzyme application in the field requires a preservation process. The aim of this study was to evaluate the stability of liquid Eupenicillium javanicum BS4 mannanase resulting from solid state…

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Perspectives and advantages of using olive (Olea europaea) by-products as a dietary supplement for rabbit production and health

  • 2023
  • Issue: 5
  • Volume: 53
C. Losacco, V. Laudadio, M. Schiavitto & V. Tufarelli Page: 737 - 754

Over the years, the olive oil market has increased considerably due to its organoleptic features and increasing awareness of the beneficial properties of olive products for human health. However, the olive oil production processes generate a variety of wastes and…

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Genomic markers associated with antibody response to Newcastle disease virus of Sasso chickens raised in Ethiopia

  • 2023
  • Issue: 5
  • Volume: 53
M. Girma, K.M. Morris, K. Sutton, W. Esatu, B. Solomon, T. Dessie, A. Psifidi, L. Vervelde, O. Hanotte, G. Banos & D.P. Malatji Page: 728 - 736

Newcastle disease virus (NDV) is one of the highly contagious avian pathogens that threatens poultry producers in endemic zones due to its epidemic potential. Selection for antibody (Ab) response can effectively improve disease resistance in chickens. However, the molecular basis…

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Effects of immunomodulatory peptides derived from a soil bacterium on caecal microbiota of broilers challenged with Clostridium perfringens

  • 2023
  • Issue: 5
  • Volume:
X. Li, G. Li, Q. Peng, Y. Sun, Y. Li, H. Li, J. Ren Page: 706 - 719

Brevibacillus texasporus peptide (BT peptide) is immunomodulatory in poultry and is proposed as a feed additive substitute for antibiotics. In the present study, we performed 16S rRNA gene sequencing to compare development of the caecal microbial communities in Clostridium perfringens-challenged…

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Extrusion of canola oilcake meal and sweet lupins on the production performance of Meatmaster lambs under feedlot conditions

  • 2023
  • Issue: 5
  • Volume: 53
T.S. Brand, O.Dreyer, J.H.C. van Zyl Page: 689 - 695

Increasing commodity prices of plant proteins pressure farmers to start exploring alternative methods to optimize utilization of these dietary sources; heat treatment (extrusion) is tested in this study. Canola oilcake meal and sweet lupins were extruded to attempt to increase…

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Effect of liquid-fermented potato hash, with or without exogenous enzymes, on carcass characteristics of growing pigs

  • 2023
  • Issue: 5
  • Volume: 53
P. Sebothoma, V.A. Hlatini, C.N. Ncobela, R.S. Thomas, M. Chimonyo Page: 678 - 688

The objective of the current study was to determine the effect of the dietary inclusion of liquid- fermented potato hash with or without exogenous enzyme on fermentation characteristics and carcass characteristics of pigs. Forty-two crossbred, male pigs (Large White ×…

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Effects of Brachiaria decumbens leaf meal supplementation on the health, blood biomarkers, and relative telomere length of broiler chickens raised in tropical environments

  • 2023
  • Issue: 5
  • Volume: 53
N.A. Kassim, E.L.T. Chung, M.M. Alghirani, Y.L. Ong, M.H. Kamalludin, F.F. Abdullah Jesse & T.C. Loh Page: 667 - 677

The main goal of this investigation was to determine the effects of Brachiaria decumbens leaf meal on the health performance, blood biomarkers, and relative telomere length of broiler chickens raised in tropical conditions. A total of 300, day-old, male, Ross…

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Effects of rumen-protected, long chain fatty acid, calcium salt supplementation on total lipid, fatty acids, and related gene expression in Korean cattle

  • 2023
  • Issue: 5
  • Volume: 53
S. A. Belal, D. R. Kang & K. S. Shim Page: 658 - 666

Rumen-protected linoleic acid-enriched calcium salts (LAE-Ca salts) and oleic acid-enriched calcium salts (OAE-Ca salts) were examined for their effects on total lipids, fatty acids, and lipid metabolism gene expression in Korean steers. A total of 30 animals with a mean…

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Replacement of soybean with canola improves short-term milk yield and nitrogen-use efficiency in high-producing, early-lactation Holstein cows

  • 2023
  • Issue: 5
  • Volume: 53
F. Mohammadi, M.S.S. Firouzabadi, M. Savari, M.A. Kachoie, A.R. Rayshan, T. Sivapriya, F. Abdollahzadeh Page: 649 - 657

It has been demonstrated that canola meal (CM) is used more efficiently than soybean meal (SBM) by lactating dairy cows. This study was conducted to determine the effects of replacing SBM with CM on production performance, blood metabolites, and ruminal…

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Effects of dietary supplementation with yeast chromium or dihydropyridine on milk composition and serum biochemical indices of periparturient dairy cows under heat stress

  • 2023
  • Issue: 5
  • Volume: 53
L.W. Zhang, Y.F. Zhang, C. Wang, S.Q. Wang, S.B. Zhang, J.D. Li, S. Gao, Z.L. Qi#, & H.J. Chen Page: 637 - 648

The objective of the current study was to evaluate the effects of dietary supplementation with chromium yeast (Cr-yeast) and dihydropyridine (DHP) on nutrient utilization, milk composition, and antioxidative status of prepartum dairy cows under heat stress. Twenty-four perinatal dairy cows…

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Diagnosis and prognosis of bovine mastitis using ultrasonography and the associated risk factors on dairy farms

  • 2023
  • Issue: 5
  • Volume: 53
O. M. Abdullah, S. Aslam, M. A. Khan, H. Mushtaq, M. Hassan, H. Akbar, N. Hussain & M. Ijaz Page: 626 - 636

The study aimed to test whether the ultrasonographic morphometry and characteristic traits of udders and teats could be used to identify clinical mastitis in forty-eight adult Holstein–Friesian dairy cows. The inclusion and exclusion criteria were also declared with the help…

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Comparison between zilpaterol hydrochloride and R-salbutamol fed during the finishing period on the growth and carcass characteristics of feedlot cattle

  • 2023
  • Issue: 5
  • Volume: 53
E.C. Webb, C. Stock & S.D. Morris Page: 615 - 625

This study aimed to compare the effects of feeding 60 mg of the β-adrenergic agonist, zilpaterol HCl (Zilmax®), per steer per day versus feeding 120 mg of the β-adrenergic agonist, R-salbutamol (Salbutamate®10%), per steer per day for the last 30…

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