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37 results for “Production Traits”
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Literature ReviewOpen accessPhrase in the titleSystematic Review of Single Nucleotide Polymorphisms of Cattle Beta-Lactoglobulin Gene and their Association with Milk Production TraitsThlarihani Cynthia Makamu, Thobela Louis TyasiThe application of molecular genetics technology to pinpoint certain DNA markers associated with commercially significant features is highly anticipated since it has the potential to enhance the effectiveness of breeding programs by selecting young animals early for use as future breeding stock. One of the main genes expressed in bovine milk is the Beta-Lactoglobulin Gene (βLG), and its polymorphism can … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 2 · 4 Mar 2024 · 5,811 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleAssessment of Phenotypic Plasticity in Dairy Production Traits of Toggenburg Goat Genotypes Across South African Agro-ecological ZonesMatshebuka Tshepho, Obert Tada, Louis Thobela TyasiThe study evaluated phenotypic plasticity (PP) in reproductive and milk production traits of Toggenburg (TOG) goat genotypes across five South African agro-ecological zones (AEZ) using a longitudinal observational design. Data from 2,417 does representing five genotypes (Founders, CP, Appendix A, Appendix B, and StudBook Proper) were sourced from the Milch Breeders Society of South Africa LOGIX database. Descriptive statistics and … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 25 Nov 2025 · 2,378 accessesView PDFCite
Research ArticleOpen accessPhrase in the titleMapping QTLs Linked to Physio-Morphological and Plant Production Traits under Drought Stress in Rice (Oryza sativa L.) in the Target EnvironmentS. Michael Gomez, S. Satheesh Kumar, P. Jeyaprakash et al.Drought stress is a major constraint for rice (Oryza sativa L.) production and yield stability in rainfed ecosystems. Identifying genomic regions (QTLs) contributing in drought resistance will help to develop rice cultivars suitable for water-limiting environments through marker-assisted breeding. QTLs linked to physio-morphological and plant production traits under drought stress in the field were mapped by evaluating 177 F6 recombinant … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 14,471 accessesView PDFCite
InvestigationOpen accessEvery word in the titleThe Level of Milk Production, Depending on the Exterior Traits of Dairy CowsLyudmila Vasilevna Alimzhanova, Saule Kuanyshpekovna Bostanova, Yuliya Nikolayevna Sheiko et al.This article presents the results of the evaluation of the exterior of the Holstein black-and-white and Simmental breeds by the linear method, the dairy productivity of animals has been studied, the relationship between the studied traits of the exterior and the productivity of animals has been determined. The linear evaluation of the first-calves of the Holstein breed in all traits … …OnLine Journal of Biological Sciences, Vol. 18, Issue 1 · 1 Jan 2018 · 7,967 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPolymorphism of Insulin-Like Growth Factor 1 Gene in Najdi Cattle PopulationsAhmad Yazdanpanah, Khalil Mirzadeh, Morteza Mamouei et al.The Insulin-like Growth Factor 1 (IGF-1) system plays a critical endocrine role controlling nutrient metabolism in dairy cattle and it is a group of structurally-related polypeptides that regulate the growth of many types of mammalian cells. In liver, IGF-1 is dynamically regulated by lactation and energy balance. Less is known about the regulation of IGF-1 and IGF-binding protein mRNA in … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 3 · 21 Sep 2013 · 7,154 accessesView PDFCite
Review ArticleOpen accessIn the abstractGenomic Regions and Candidate Genes Associated With Semen Traits in Rams: A Systematic GWAS Review With Implications for South African Sheep BreedsNhlakanipho Sam Zulu, Khoboso Christine LehloenyaRam fertility is a key determinant of reproductive efficiency in sheep production systems, particularly under extensive and semi-extensive conditions prevalent in South Africa. Semen quality traits, including ejaculate volume, sperm concentration, motility, and cryotolerance, exhibit measurable genetic variation and are increasingly investigated using genomic approaches. This systematic review synthesizes evidence from three eligible Genome-Wide Association Studies (GWAS) analyses that have … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 26 Oct 2026 · 50 accessesView PDFCite
Research ArticleOpen accessIn the abstractGrowth Performance and Duodenal Morphometry of 1-6 Week Old Kampung Chickens Supplemented With L-LeucineCharles Venirius Lisnahan, Steffanie Merlin Clyricia Noach, Lukas Pardosi, Theresia Nur Indah KoniThis study evaluated the effects of dietary L-leucine supplementation on growth performance and duodenal morphometry of Kampung chickens during the starter phase (1–6 weeks). A total of 600 one-week-old Kampung chickens were randomly assigned to five dietary treatments with six replicates of 20 birds each in a completely randomized design. The treatments consisted of a basal diet without L-leucine (T0) … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 11 Sep 2026 · 904 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrincipal Component Analysis of the Female Pengging Soloan Duck Based on Morphometric TraitsRini Nur Hayati, Subiharta, Yudi Adinata et al.The Pengging Soloan duck is an emerging indigenous genetic resource from Central Java, Indonesia, recognized for its adaptability and egg-laying potential. However, its phenotypic characterization remains limited compared with established Indonesian duck breeds such as Mojosari, Tegal, and Magelang ducks. This study aimed to characterize 70 adult female Pengging Soloan ducks aged 5 6.5 months using Principal Component Analysis (PCA) … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 10 Sep 2026 · 940 accessesView PDFCite
Research ArticleOpen accessIn the abstractEvaluation of Sweet Sorghum Varieties for Bioethanol Production Under Dryland ConditionsIldar Bogapov, Marden Baidalin, Oksana Kibalnik, Saltanat BaidalinaThe objective of this study was to evaluate the productivity potential and theoretical bioethanol yield of 12 sweet sorghum genotypes under dryland conditions of Northern Kazakhstan during the 2024-2025 growing seasons using a quantitative experimental design. Significant varietal differences in agronomic traits were observed depending on meteorological conditions. In 2024, the highest theoretical bioethanol yield was achieved by Sevilya (1417 … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 16 Jul 2026 · 411 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic and Environmental Interactions in Spring Wheat Resistance to Bipolaris Sorokiniana Root Rot in KazakhstanYerlan Dutbayev, Ardak Bolatbekova, Aidana Kharipzhanova et al.Common root rot caused by Bipolaris sorokiniana represents a major constraint to wheat production in Kazakhstan. This study evaluated the resistance of 30 spring bread and durum wheat genotypes under diverse environmental and treatment conditions in two contrasting regions (Almaty and Aktobe) during 2024. The experimental design included three treatment regimes: fungicide application, artificial inoculation with the pathogen, and natural … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 7 Mar 2026 · 1,517 accessesView PDFCite