Results 61 to 70 of about 62,665 (307)
Source attribution figure for human and dogs Brucella canis infections. ABSTRACT We report a rare occurrence of genetic material from both Brucella canis and B. melitensis detected in a domesticated dog from Jiangsu Province, China. The detection was confirmed through serological assays, quantitative PCR (qPCR), metagenomic and genomic sequencing ...
Shengxin Ge +4 more
wiley +1 more source
Nitrogen efficiency of dairy cattle : from protein evaluation to ammonia emission [PDF]
Diet optimization contributes considerably to increased nitrogen efficiency of dairy cattle, resulting in reduced nitrogen losses. This thesis focuses on three themes: the potential advances in protein evaluation systems for ruminants, the relationship ...
van Duinkerken, G., Duinkerken, G., van
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Incidence of Infertility in Dairy Cows [PDF]
The incidence of anoestrus, suboestrus, delayed ovulation, cystic ovaries, repeat breeder cows, endometritis and other forms of infertility was studied in 283 herds over a period of eight years (2,304 cases). The total incidence of infertility (0.111 cases per cow per year) varied significantly from year to year.
K, Roine, H, Saloniemi
openaire +2 more sources
Antimicrobial resistance (AMR) is an escalating global threat driven by antimicrobial use in aquaculture and livestock. Resistant pathogens and genes can spread across humans, animals, and the environment through interconnected ecosystems. Using a One Health approach, this review emphasizes antimicrobial stewardship, regulatory strengthening, enhanced ...
Mir Mohammad Ali +10 more
wiley +1 more source
Insemination factors affecting the conception rate in seasonal calving Holstein-Friesian cows [PDF]
peer-reviewedDifferences in conception rate to first service between artificial inseminations (AI) carried out by commercial AI operators (CAI) or do-it-yourself operators (DIY), between natural service (NAT) and AI, between different AI sires, and ...
Mee, John F +13 more
core +1 more source
Follicle Stimulating Hormone in Cattle Breeding: Fundamentals, Innovations, and Scope
FSH is crucial in cattle reproduction, with exogenous administration enhancing breeding and embryo production. Recombinant FSH offers advantages over pituitary‐extracted variants, including fewer injections, reduced stress, and safer production. These innovations improve breeding efficiency, optimize reproductive outcomes, and contribute to sustainable
Muhammad Shahzad +7 more
wiley +1 more source
Milk Price Recovery or Not: Feeding and Management Strategies Facing Different Scenarios [PDF]
This presentation, which was given on February 16th during the 71st Annual Convention : 2017 Virginia State Feed Association & Nutritional Management “Cow” College, discusses big practices affecting milk prices, yearly changes in milk production, average
St-Pierre, Normand
core +1 more source
Effect of restricting silage feeding prepartum on time of calving, dystocia and stillbirth in Holstein-Friesian cows [PDF]
peer-reviewedA study was carried out to investigate the effect of restricting silage feeding on time of calving and calving performance in Holstein-Friesian cows.
Mee, John F +7 more
core +1 more source
Cows with ketosis during the perinatal period often experience damage to the liver, a core metabolic organ, thereby exacerbating the disease's inherent vicious cycle. This study indicates that serum 3‐IAA concentrations were reduced in ketotic cows and show a significant negative correlation with hepatic TG content.
Dandan Qi +15 more
wiley +1 more source
Simulating the effect of forces pit ventilation on ammonia emission from naturally ventilated cow houses with CFD [PDF]
Atmospheric NH3, mainly originates from agricultural sources, can cause serious environmental problems related to eutrophication and soil acidification. Emissions from dairy houses are 15% of total agricultural NH3 emissions.
Campen, J.B. +3 more
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