Methods Dead-EndOpen accessAnimal culture
Antonio Fernando Bergamaschine, Milton Passipiéri, Walter Valério Veriano Filho et al. · 2006 · Revista Brasileira de Zootecnia
Avaliaram-se a qualidade e o valor nutritivo de silagens de capim-marandu produzidas com polpa cítrica (PC) peletizada, com aditivo enzimático-bacteriano (ABE) ou com forragem emuchercida (E): T1 - forragem sem tratamento (controle); T2 - 10% de polpa cítrica peletizada (PC); T3 - aditivo enzimático bacteriano (AEB - SIL-ALL-C4 da Alltech), à base de 5 g/L de água/t de forragem; T4 - forragem picada grosseiramente emurchecida por 4 horas ao sol. O capim foi colhido aos 60 dias de rebrota (24% MS). Para avaliar o consumo e a digestibilidade das silagens, foram utilizados 16 novilhos mestiços co
View details →Negative / Null Result ReportOpen accessAnimal culture
K. Krag, L.L. Janss, M.M. Shariati et al. · 2013 · Animal
Heritability is a central element in quantitative genetics. New molecular markers to assess genetic variance and heritability are continually under development. The availability of molecular single nucleotide polymorphism (SNP) markers can be applied for estimation of variance components and heritability on population, where relationship information is unknown. In this study, we evaluated the capabilities of two Bayesian genomic models to estimate heritability in simulated populations. The populations comprised different family structures of either no or a limited number of relatives, a single
View details →Negative / Null Result ReportOpen accessAnimal culture
Giovanni Martemucci, Angela Gabriella D’Alessandro · 2010 · Italian Journal of Animal Science
Three experiments were carried out with the aim of evaluating the efficiency of techniques of in vivo production, storage and transfer of embryos in dairy sheep. Experiment I - For embryo production, thirty-one ewes were synchronized with FGA (vaginal sponges, 40 mg, 9 d) and PGF2α (ICI; 50 μg, 7th d), and subdivided into three groups corresponding to the following superovulatory treatments over 3 days with purified gonadotrophic preparations: A) control, FSH/LH ratio = 1 (250 IU p-FSH : 250 UI p-LH); B) FSH/LH ratio = 2 (250 IU p-FSH : 125 IU p-LH) and daily FSH/LH ratio of 3.4 &ndas
View details →Negative / Null Result ReportOpen accessAnimal culture
S. Lürzel, K. Barth, I. Windschnurer et al. · 2018 · Animal
Cattle’s relationship with humans is a crucial factor regarding their welfare. In dairy cows, interactions with humans occur regularly during milking. We tested the effect of gentle interactions (stroking, talking in a gentle voice) during milking on avoidance distance and milk composition, yield and flow characteristics as well as behaviour during milking. Over the course of 15 days, an experimenter interacted gently with 14 German Holstein cows for 2 min during morning and evening milkings, totalling 60 min; the experimenter stayed at a similar distance to 12 control cows of the same breed f
View details →Negative / Null Result ReportOpen accessAnimal culture
QIAN Ren-dong, WANG Lian-sheng, LUO Qiao-hua et al. · 2023 · Siliao yanjiu
The purpose of the study was to investigate the effects of wheat gluten replacing fish meal on growth performance, serum biochemistry, liver antioxidant and intestinal digestive enzyme activities of Cyprinus carpio . A total of 180 healthy Cyprinus carpio with an initial body weight of (9.16±0.03) g were selected and divided into three experimental groups, with three replicates in each group and 20 fish in each replicate. The control group (CW) was with 5% fish meal, and the experimental groups were with 50% (WA) and 100% (WB) fish meal replaced by wheat gluten. The experiment lasted for 56 d.
View details →Negative / Null Result ReportOpen accessAnimal culture
Hang Wang, Xiaojie Qin, Xia Li et al. · 2020 · Poultry Science
This study was conducted to investigate the effects of air chilling (AC), water chilling (WC), combined chilling consisting of WC for 20 min and AC (CO20), and combined chilling consisting of WC for 30 min and AC (CO30) on the microbiological status, surface color, processing yield, and moisture content of yellow-feathered chicken carcasses. After chilling, the carcasses treated by AC exhibited the highest total viable counts (TVC) (4.7 cfu/cm2), followed by those treated by CO20 and CO30, whereas the carcasses treated by WC showed the lowest (P 0.05) was found among the carcasses treated by C
View details →Negative / Null Result ReportOpen accessAnimal culture
G. Martemucci, A. G. D'Alessandro · 2010 · Italian Journal of Animal Science
Two experiments were carried out in Martina Franca asses in order to study milk yield and udder healthy conditions in relation to daily milking number and frequency. Experiment I - A total of 15 asses were subdivided into three groups (N.5) corresponding to: one milking per day, after a 3 hour interval from foal separation by dams (Group A); three milkings per day with 3 hour frequency (Group B); three milkings per day with 2 hour frequency (Group 3M). Experiment II - Evaluation was made of the effect of a schedule of 6 milkings per day with frequency of 2 hours on milk yield (Group 6M; N. 5),
View details →Negative / Null Result ReportOpen accessAnimal culture
P. P. Singh, Ashok Kumar, R. S. Chauhan et al. · 2016 · Veterinary World
Aim: The present study was aimed to investigate the immunological competence of chlorpyrifos (CPF) insecticide after oral administration in layer chickens. Materials and Methods: A total of 20 White Leghorn birds were given CPF in drinking water at 0.3 ppm/bird/day (no observable effect level dose) for a period of 3-month. Immune competence status of layer birds and chicks hatched from CPF-treated birds were estimated at 15 days interval in layer birds and monthly interval in chicks using immunological and biochemical parameters. Results: There was a significant decrease in values of total leu
View details →Negative / Null Result ReportOpen accessAnimal culture
Kênia Ferreira Rodrigues, Paulo Borges Rodrigues, Rilke Tadeu Fonseca de Freitas et al. · 2008 · Revista Brasileira de Zootecnia
Objetivou-se avaliar o desempenho e as características de carcaça de frangos de corte no período de 22 a 42 dias alimentados com rações formuladas com diferentes relações lisina digestível:proteína bruta (PB). O delineamento foi inteiramente casualizado, segundo um modelo com dois critérios de classificação hierárquica. Foram utilizados 1.200 pintos de corte machos, linhagem Cobb, criados até 21 dias de idade. Depois desse período, as aves foram uniformizadas por peso (média de 879 ± 17 g) e distribuídas nas parcelas experimentais. As dietas foram isonutritivas, exceto quanto aos níveis
View details →Negative / Null Result ReportOpen accessAnimal culture
Mariana Cristina Vieira, Henrique Carneiro Lobato, Laryssa Fernanda Bernardes et al. · 2025 · Poultry Science
This study aimed to evaluate effects of day-old chick navel quality on the absorption of the residual yolk sac, visceral development, macroscopic organ alterations, yolk sac bacterial presence and performance of broilers up to 14 d of age. A total of 372 male Ross 308 day-old chicks were classified as first or second-grade based on navel quality. First-grade chicks were chicks with the yolk sac completely retracted and a fully healed dry navel, without any further abnormality. Second-grade chicks were chicks with incomplete healed navels, based on the presence of residual yolk membrane or a bl
View details →Negative / Null Result ReportOpen accessAnimal culture
Assar Ali Shah, Muhammad Saleem Khan, Sarzamin Khan et al. · Revista Brasileira de Zootecnia
ABSTRACT This study was designed to find the effect of vitamin E supplementation on growth, serum antioxidant enzymes, and some trace elements in Japanese quail (Coturnix coturnix japonica) under low ambient temperature. A total of 180 day-old Japanese quails were randomly divided into four groups and provided with 0 (group A), 50 (group B), 100 (group C), and 150 IU/kg (group D) vitamin E (dl-α-tocopherol acetate) under an average temperature of 9±0.5 °C for an experimental period of 42 days. The result showed that feed intake per day, body weight, weight gain per day, and feed conversion rat
View details →Negative / Null Result ReportOpen accessAnimal culture
S. McCabe, N. McHugh, N.E. O’Connell et al. · 2020 · Animal
Feed costs account for the largest proportion of direct cost within suckler beef production systems. By identifying the cow type with enhanced capability of converting grazed herbage to beef output across lactations, suckler cow systems would become more efficient and sustainable. The objective of this study was to estimate grass DM intake (GDMI) and production efficiency among lactating suckler cows of diverse genetic merit for the national Irish maternal index (Replacement Index) which includes cow efficiency components such as milk yield and feed intake. Data from 131 cows of diverse geneti
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C.D. Araújo, G.S. Sanches, F. Borek et al. · 2023 · Arquivo Brasileiro de Medicina Veterinária e Zootecnia
ABSTRACT KIT protein is associated with the etiology of canine mast cell tumors (MCT); however, the expression patterns of KIT are highly variable. The aim of this study was to determine if KIT patterns are related with eosinophil count in MCT. Hematoxylin eosin and May Grünwald-Giemsa stain techniques were applied, histological grading and eosinophil counting were performed in 48 MCT samples. Immunohistochemical evaluation was performed with IL-5, VEGFr, and c-KIT antibodies. The percentage of immunolabeling with IL-5 and VEGFr was determined, and the samples incubated with c-KIT were graded
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RAVIKANTH JETTY, S SREEDHAR, CH VENKATA SESHAIAH2 et al. · 2025 · Indian Journal of Animal Sciences
The present research was conducted to study the effect of fan and foggers on Temperature Humidity Index (THI) and physiological responses in Nellore brown sheep during summer. Twenty ewes of age 3-5 years from sheep unit of Livestock Farm Complex of NTR college of Veterinary Sciences, Gannavaram were divided into 2 groups of each 10 ewes each in a completely randomized design on the basis of body weight. The animals in the group-I were considered as control whereas the animals in the group-II were equipped with fan and foggers for modification of microclimate in the shed. Data on temperature-h
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A. Idris, E. Moors, C. Budnick et al. · 2011 · Animal
The relationship among parasitological parameters, abomasal size and body size measurements was investigated in lambs following an experimental infection with Haemonchus contortus. In total, 100 lambs from five different genotypes (German Merino (GM), Texel × GM, Suffolk × GM, German Blackhead Mutton × GM and Ile de France × GM) were experimentally infected with 5000 infective third stage larvae of H. contortus at the time of weaning at 12 weeks of age. Four and six weeks after infection, individual faecal samples were collected for estimation of faecal egg counts (FECs). Furthermore, wither h
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Ya-qian LIANG, Yong-lei YANG, Lei XU et al. · 2022 · Siliao yanjiu
The experiment was to investigate the effect of adding different levels of vitamin C (VC) to parent pigeons' diets on body weight, slaughter performance, meat quality, serum biochemical indexes and blood routine of squabs. 90 pairs of parent pigeons and 270 squabs with similar body weight at one-day-old were selected, and the parent pigeons and squabs were randomly divided into five groups, with six repelicates in each group. There were three cages in each cage with one pair of baby pigeons and three squabs. Group A, group B, group C, group D and group E were supplemented with 0, 200, 400, 800
View details →Negative / Null Result ReportOpen accessAnimal culture
Yosua Kristian Adi, Rini Widayanti, Tri Wahyu Pangestiningsih · 2018 · Veterinary World
Aim: n-Propanol extracts from fresh, boiled, and fermented seeds were studied to evaluate their neuroprotective effects in a Parkinson's disease (PD) rat model, based on the total number of dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc). Materials and Methods: Rats were induced with paraquat dichloride at a dosage of 7 mg/kg BW intraperitoneally twice a week and at the same time supplemented with extract at a dosage of 70 mg/kg BW orally every day for 3 weeks. On the 24th day, all rats were perfused and fixed with 4% paraformaldehyde. The left part of the SNpc was proce
View details →Negative / Null Result ReportOpen accessAnimal culture
H Nasiri Mogadam, M Azadegan Mehr, L Zartash et al. · 2012 · پژوهشهای علوم دامی ایران
An experiment was conducted to examine the effect of different levels of extruded soybean and enzyme on broiler performance. In a completely randomized design with 2×3 factorial arrangement, 480 one day-old, Ross broiler chickens were divided into 40 groups, 12 chicks per pen. Treatments were consisting of combination of four levels of extruded soybean (0.0, 5.0, 10.0 and 15.0 %) and two levels of enzyme (0.0 and 500 g per ton). Different levels of extruded soybean and enzyme had no significant effect on blood factors such as cholesterol, triglyceride and the weight of liver and heart. The usa
View details →Negative / Null Result ReportOpen accessAnimal culture
Samadi F, Sahneh M · 2015 · Poultry Science Journal
A total of 240, one-day-old quail chicks (Coturnix coturnix japonica) were used to study the effects of Artichoke leaf meal (ALM) and vitamin E in diet on growth performance, ileal microbial populations and intestinal morphology in a 42-d trial. This experiment was performed as a completely randomized design with 4 replicates of 15 quails each, using a 4 × 2 factorial arrangement with diet and gender as the main effects. Four dietary treatments were formulated by addition of 2 levels (1.5 and 3 percent) of ALM and 300 mg/Kg vitamin E to the basal diet. Supplementing basal diet with ALM did not
View details →Negative / Null Result ReportOpen accessAnimal culture
Razia Sultana Janampet, Kishan Kumar Malavath, Rajanna Neeradi et al. · 2016 · Veterinary World
Aim: This study was conducted to evaluate the growth performance and nutrient digestibility of guar meal, an unconventional protein-rich feed ingredient in kids in comparison to conventional groundnut cake. Materials and Methods: A total of 18 kids were randomly allotted to three groups, and T1 group was fed on basal diet, T2 and T3 groups were offered diet replacing groundnut cake at 50% and 100% with guar meal, respectively, for a period of 120-day. At the end of the growth trial, a digestibility trial was conducted to evaluate the nutrient utilization. Results: There was no significant diff
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