Negative / Null Result Report2025
Effects of chromium methionine on growth performance， antioxidant， serum biochemical indicators， and hepatopancreas health of common carp fed with high carbohydrate diet
Siliao yanjiu
Failure-mode index
Negative results in Animal culture
50 indexed negative results, null findings, and replication failures in Animal culture. Each entry is a real published study whose primary finding was negative — learn what already failed before you repeat it.
Most-cited failures in Animal culture
Negative / Null Result Report2023
The Effect of Vitamin D3 and Vitamin C on Performance, Egg Quality and Hatchability of Broiler Breeder Hens
پژوهشهای علوم دامی ایران
Negative / Null Result Report2025
Central injection of epidermal growth factor (EGF) induces hypophagia via D₁ dopaminergic and β₂ adrenergic receptors in broiler chickens
Poultry Science
Negative / Null Result Report2016
Rabbit dietary supplementation with pale purple coneflower. 1. Effects on the reproductive performance and immune parameters of does
Animal
Negative / Null Result Report2007
Feed intake and performance of growing lambs raised on concentrate-based diets under cafeteria feeding systems
Animal
Negative / Null Result Report2019
Effect of commercial guar meal (CGM) on the performance and nutrient utilization in broilers
Indian Journal of Animal Sciences
Negative / Null Result Report2016
Quality of Meat () from Male Fallow Deer () Packaged and Stored under Vacuum and Modified Atmosphere Conditions
Asian-Australasian Journal of Animal Sciences
Negative / Null Result Report2010
Desempenho produtivo de fêmeas leiteiras alimentadas com silagem de milho e concentrado à base de farelo de soja ou farelo de algodão Productive performance of growing dairy heifers fed corn silage and soybean or cottonseed meal based concentrate
Revista Brasileira de Zootecnia
Negative / Null Result Report2020
Slaughter value and meat quality in two strains of polish crested cockerels
Italian Journal of Animal Science
Negative / Null Result Report2021
Yellow grease in sheep diets: intake and digestibility
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Negative / Null Result Report2025
Characteristics of the Morphology and Hatchability of Egg White Nest Swiftlets (Aerodramus fuciphagus) under Artificial Incubation Conditions
Jurnal Ilmu-Ilmu Peternakan
Negative / Null Result Report2007
Effects of dietary incorporation of different antioxidant extracts and free-range rearing on fatty acid composition and lipid oxidation of Iberian pig meat
Animal
Negative / Null Result Report2016
Effect of Digestible Protein and Sulfur Amino Acids in Starter Diet on Performance and Small Intestinal (Jejunum) Morphology of Broilers
پژوهشهای علوم دامی ایران
Negative / Null Result Report2012
Early-age feed restriction affects viability and gene expression of satellite cells isolated from the gastrocnemius muscle of broiler chicks
Journal of Animal Science and Biotechnology
Negative / Null Result Report
Lipid Sources in Diets for Hy-Line White Laying: Performance, Biometrics of Digestive Organs, and Bone Characteristics
Brazilian Journal of Poultry Science
Negative / Null Result Report2025
Effect of betaine on growth performance, methionine metabolism, and methyl transfer in broilers aged 1 to 21 days and fed a low-methionine diet
The Journal of Poultry Science
Negative / Null Result Report2015
Effect of replacing dietary FeSO4 with equal Fe-levelled iron glycine chelate on broiler chickens
Czech Journal of Animal Science
Negative / Null Result Report2022
EFFECT OF ETHANOL EXTRACT FROM MALACCA LEAVES (Phyllanthus emblica) ON THE SPERM QUALITY OF MICE
Jurnal Kedokteran Hewan
Negative / Null Result Report2021
Effect of glucose oxidase combined with Lactobacillus on growth performance and immune function of broilers
Siliao yanjiu
Negative / Null Result Report2023
Effect of treated waste water intake on physiological, growth and hematological parameters in Karan-Fries, Tharparkar and Murrah female calves
Indian Journal of Animal Sciences
Negative / Null Result Report2025
Saccharomyces Boulardii and Saccharomyces Cerevisiae Improve Immunity in Broilers Vaccinated Against Pasteurella Multocida and Salmonella Gallinarum
Brazilian Journal of Poultry Science
Negative / Null Result Report2023
Effect of Dietary Zeolite Supplementation on Production, Egg Quality, Ammonia Volatilization, Organ Morphometry and Blood Parameters in Brown Laying Hens
Brazilian Journal of Poultry Science
Negative / Null Result Report2012
Use of coccidiostat in mineral salt and study on ovine eimeriosis Uso de coccidiostático no sal mineral e estudo da eimeriose ovina
Revista Brasileira de Parasitologia Veterinária
Negative / Null Result Report2025
Effects of the physical form of starter feed on the intake, performance, and health of female Holstein calves
Animal
Negative / Null Result Report2013
Antioxidative activity and protective effect of probiotics against high-fat diet-induced sperm damage in rats
Animal
Negative / Null Result Report2012
Effect of dose of thymol and supplemental flavours or camphor on palatability in a choice feedings study with piglets
Czech Journal of Animal Science
Negative / Null Result Report2009
Consumo de volumosos, produção e composição físico-química do leite de cabras F1 Boer Saanen Roughage intake, milk yield and physicochemical composition from F1 Boer Saanen goats
Revista Brasileira de Zootecnia
Negative / Null Result Report2014
Energy content and amino acid digestibility of extruded and dehulled-extruded corn by pigs and its effect on the performance of weaned pigs
Czech Journal of Animal Science
Negative / Null Result Report2018
Influence of supplemental canola or soybean oil on milk yield, fatty acid profile and postpartum weight changes in grazing dairy goats
Asian-Australasian Journal of Animal Sciences
Negative / Null Result Report2006
Frações da parede celular e digestibilidade in vitro da matéria seca de três genótipos de girassol ensilados com aditivos In vitro dry matter and cell wall fractions of three genotypes of sunflower ensiled with additives
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Methods Dead-End2006
Qualidade e valor nutritivo de silagens de capim-marandu (B. brizantha cv. Marandu) produzidas com aditivos ou forragem emurchecida Quality and nutritive value of marandugrass (Brachiaria brizanthia, cv. Marandu) silage prepared with additive or wilting
Revista Brasileira de Zootecnia
Negative / Null Result Report2013
SNP-based heritability estimation using a Bayesian approach
Animal
Negative / Null Result Report2010
Use of purified FSH and LH for embryo production, cryopreservation by conventional freezing or vitrification and transfer of embryos in dairy ewes
Italian Journal of Animal Science
Negative / Null Result Report2018
The influence of gentle interactions with an experimenter during milking on dairy cows’ avoidance distance and milk yield, flow and composition
Animal
Negative / Null Result Report2023
Effect of replacing fish meal with wheat gluten on growth performance， serum biochemistry， liver antioxidant and intestinal digestive enzyme activity of Cyprinus carpio
Siliao yanjiu
Negative / Null Result Report2020
Effect of chilling methods on the surface color and water retention of yellow-feathered chickens
Poultry Science
Negative / Null Result Report2010
Influence of milking number and frequency on milk production in Martina Franca breed asses
Italian Journal of Animal Science
Negative / Null Result Report2016
How safe is the use of chlorpyrifos: Revelations through its effect on layer birds
Veterinary World
Negative / Null Result Report2008
Desempenho e rendimento de carcaça de frangos de corte no período de 22 a 42 dias de idade alimentados com dietas contendo diferentes relações lisina digestível: proteína bruta Performance and carcass yield of broiler in the period from 22 to 42 days of age fed diets with different digestible lysine: crude protein ratios
Revista Brasileira de Zootecnia
Negative / Null Result Report2025
Relevance of navel quality of day-old chick on organ development, initial performance, and bacterial presence
Poultry Science
Negative / Null Result Report
Effect of different levels of alpha tocopherol on performance traits, serum antioxidant enzymes, and trace elements in Japanese quail ( Coturnix coturnix japonica ) under low ambient temperature
Revista Brasileira de Zootecnia
Negative / Null Result Report2020
Evaluation of production efficiencies at pasture of lactating suckler cows of diverse genetic merit and replacement strategy
Animal
Negative / Null Result Report2023
Comparison of KIT patterns and infiltration of eosinophils in canine mast cell tumor
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
Negative / Null Result Report2025
Effect of altered microclimate on alleviating heat stress in sheep
Indian Journal of Animal Sciences
Negative / Null Result Report2011
Is the establishment rate and fecundity of Haemonchus contortus related to body or abomasal measurements in sheep?
Animal
Negative / Null Result Report2022
Effect of adding vitamin C to parent pigeons' diets on growth performance， slaughter performance， meat quality and serum biochemical indexes of squabs
Siliao yanjiu
Negative / Null Result Report2018
n-Propanol extract of boiled and fermented koro benguk (Mucuna pruriens seed) shows a neuroprotective effect in paraquat dichloride-induced Parkinson's disease rat model
Veterinary World
Negative / Null Result Report2012
Effect of Different Levels of Extruded Soybean and Avizyme Enzyme on Broiler Performance
پژوهشهای علوم دامی ایران
Negative / Null Result Report2015
Effects of Artichoke (Cynara scolymus L.) Leaf Meal and Vitamin E on Productive Performance, Intestinal Microflora and Morphology in Japanese Quail
Poultry Science Journal
Negative / Null Result Report2016
Effect of feeding guar meal on nutrient utilization and growth performance in Mahbubnagar local kids
Veterinary World