scholarly journals Cryptosporidium Species of Dairy Cattle in the North Kazakhstan Region

2020 ◽  
Author(s):  
Altay E. USENBAYEV ◽  
Jumaline AYBECK ◽  
Maksat A. BERDIKULOV ◽  
Abdin KEMELBEK ◽  
Roman M. BISENGALIYEV ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Cryptosporidium Species ◽  
The North

Genotyping of Coxiella burnetii detected in placental tissues from aborted dairy cattle in the north of Algeria

2018 ◽  
Vol 57 ◽  
pp. 50-54 ◽  
Author(s):  
M. Rahal ◽  
D. Tahir ◽  
C. Eldin ◽  
I. Bitam ◽  
D. Raoult ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Coxiella Burnetii ◽  
The North

Ecology and epizootology of trematodosis in cattle, treatment and prevention in dairy cattle farms of Vologda region

2016 ◽  
Vol 3 (4) ◽  
pp. 496-501
Author(s):  
Кряжев ◽  
A Kryazhev
Keyword(s):  
Dairy Cattle ◽  
Fasciola Hepatica ◽  
Intermediate Hosts ◽  
Adult Cattle ◽  
Maximum Peak ◽  
Trematode Infection ◽  
Vologda Region ◽  
The North ◽  
Treatment And Prevention ◽  
Cattle Farms

Objective of research: To study the epizootiology of trematodoses of cattle from dairy cattle farms in the Vologda region; to estimate the anthelmintic efficacy of Fascocide, Helmicide, Oxiclozanide, Albendazole, Fezole, Alben. Materials and methods: A preliminary analysis of veterinary reports of the Department of Veterinary Medicine, the regional Stations on Fight against Diseases in Animals, meat-processing plants and slaughter units, Laboratories of Veterinary and Sanitary Expertise was carried out for the period 2005–2009 according to the Forms «1-Vet» and «5-Vet». Coproovoscopic examinations of cattle were conducted monthly to determine seasonal and age dynamics of infection. Biological features of intermediate hosts were studied by standard methods. Fascocide at the dose of 10 mg a.i./kg, Helmicide — 7,5 g/100 kg, Oxiclozanide — 5,25 mg/kg, Albendazole — 15 mg a.i./kg and Alben — 10 mg a.i./kg were used against fasciolosis and paramphistomosis in cattle under production conditions in dairy farms and complexes of Vologda region. Results and discussion: The rates of trematode infection in various climatic and geographic zones of the region are different. The highest level of infection was registered in the North Eastern and South Eastern zones, and the lowest — in the South Western. Adult cattle are infected with Fasciola hepatica, Paramhistomum cervi and P. ichikawai all year round; the maximum peak of infection is registered in winter and spring seasons. First signs of trematode infection in calves of the first grazing season are observed at the beginning of the pasture season, which is the evidence for the overwintering of helminth larvae in intermediate hosts. Trematode infections manifest commonly as mixed infections. First individuals of Lymnaea truncatula and Planorbis planorbis appear in biotopes in the second decade of May, reaching the maximum number in August. Their infection with trematode parthenites is observed in the period from the first half of June to October; the maximum peak of infection — in August. The most effective preparations for dehelmintization against Fasciola spp. and Paramhistomum spp. are Fascocide, Helmicide and Fezole.

scholarly journals Prevalence of some Cryptosporidium species in cattle in Baghdad ,Iraq

2012 ◽  
Vol 11 (2) ◽  
pp. 177 ◽  
Author(s):  
M. TH. S. Al- zubaidi
Keyword(s):  
Dairy Cattle ◽  
Species Identification ◽  
Cryptosporidium Species ◽  
Cryptosporidium Infection ◽  
Fecal Samples ◽  
Cryptosporidium Oocysts ◽  
Shape And Size

A total of 268 fecal samples were collected from calves between 1 week to 2 years old from Al-Nasr station for dairy cattle and three regions in Baghdad (AL-Taji, AL-Shula, and AL-Gazaliya). Modified Zehil Neelson stain was used to detect Cryptosporidium oocysts in these samples. Oocyst shape and size were used as criterions for species identification. The overall prevalence of Cryptosporidium infection was 35.44%. No sex preponderance was found, but there was decreasing in the prevalence versus age, with C. parvum was the dominated species before six month age, and C. andersoni in calves older than that.

Effects of heat stress on reproductive efficiency in Holstein dairy cattle in the North African arid region

2020 ◽  
Vol 55 (9) ◽  
pp. 1250-1257
Author(s):  
Hanane Djelailia ◽  
Rachid Bouraoui ◽  
Bayrem Jemmali ◽  
Taha Najar
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Arid Region ◽  
Reproductive Efficiency ◽  
North African ◽  
The North

scholarly journals Comparative Intradermal Tuberculin Test in Dairy Cattle in the North of Ecuador and Risk Factors Associated with Bovine Tuberculosis

2009 ◽  
Vol 81 (6) ◽  
pp. 1103-1109 ◽  
Author(s):  
Freddy Proaño-Perez ◽  
Ricardo Benitez-Capistros ◽  
Maritza Celi-Erazo ◽  
Françoise Portaels ◽  
Lenin Ron-Garrido ◽  
...  
Keyword(s):  
Risk Factors ◽  
Dairy Cattle ◽  
Bovine Tuberculosis ◽  
Tuberculin Test ◽  
Factors Associated ◽  
The North

Effects of supplementation of dairy cattle with fish oil on silage intake, milk yield and milk composition

2000 ◽  
Vol 67 (2) ◽  
pp. 137-153 ◽  
Author(s):  
TIMOTHY W. J. KEADY ◽  
C. SINCLAIR MAYNE ◽  
DEIRDRE A. FITZPATRICK
Keyword(s):  
Dairy Cattle ◽  
Fish Oil ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Palm Kernel ◽  
Milk Composition ◽  
The North ◽  
Commercial Source ◽  
Fish Oil Supplementation

The effects of level of fish oil inclusion in the diet on grass silage intake, and milk yield and composition of dairy cows offered either 5 or 10 kg concentrates/d were evaluated in a ten treatment, partly balanced, changeover design experiment involving 50 cows in early lactation. Concentrates were prepared to provide 0, 150, 300 or 450 g fish oil/cow per d or 300 g fish oil/cow per d from a premix when each animal was offered 5 kg/d. The fish oil was predominantly from herring and mackerel caught in the North Atlantic while the fish oil premix was obtained from a commercial source and used palm kernel expeller as a carrier. Increasing fish oil supplementation decreased silage dry matter intake and the concentrations of milk fat and protein, and increased milk yield and diet digestibility. There were significant interactions between concentrate feed level and level of fish oil for silage intake and milk yield. Other than for the concentrations of milk fat and protein, and 20[ratio ]4n−6 fatty acids, the source of fish oil did not affect forage intake or animal performance. Fish oil supplementation also decreased the concentrations of milk protein by 0·9 g/kg for each 100 g increase in fish oil supplementation, the depression being similar at each level of concentrate feeding. Supplementing the feed of dairy cows with 450 g fish oil/cow per d decreased the concentration of milk fat by 15 g/kg. This study also showed that feeding dairy cattle with fish oil is an efficient method of increasing eicosapentaenoic acid in the human diet through transfer into milk.

TALL FESCUE TOXICITY: AN INVESTIGATION OF IDIOPATHIC BOVINE HYPERTHERMIA (IBH) IN THE NORTH AUCKLAND PENINSULA.

1986 ◽  
pp. 183-186
Author(s):  
M.P. Kearns
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Tall Fescue ◽  
Management Practices ◽  
Farm Management ◽  
Dairy Herds ◽  
Jersey Cattle ◽  
The North ◽  
Almost All

A survey was made of 64 dairy herds, grazing pastures containing naturalised tall fescue in the North Auckland peninsula, to demonstrate an assooation of endophyte fungus in tall fescue with IBH. Of these, 40 farms had cattle with IBH and 24 had no IBH. Endophyte fungus was identtfied in tall fescue samples from all survey farms. Acremonium coenophiolum was demonstrated in samples from almost all farms and a high proportion of these also showed a Phiafophora-like endophyte. No correlation could be shown between the presence of endophyte or any farm management practices such as topdressing etc and IBH. Breed susceptibility was observed in Friesian breeds whilst Jersey cattle were less susceptible. IBH first appeared in November and December with a peak m January. Most affected herds had a hlstory of IBH for many years. Keywords: Dairy cattle, tall fescue toxicity, endophyte fungus, idiopathic bovine hyperthermia, IBH. heat-stress, hyperthermia.

A genome scan for QTL influencing milk production and health traits in dairy cattle

1999 ◽  
Vol 1 (3) ◽  
pp. 165-175 ◽  
Author(s):  
D. W. HEYEN ◽  
J. I. WELLER ◽  
M. RON ◽  
M. BAND ◽  
J. E. BEEVER ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Genome Scan ◽  
Joint Analysis ◽  
Fat Percentage ◽  
The North ◽  
Significance Threshold ◽  
Nominal Significance ◽  
Holstein Friesian ◽  
A Genome

Heyen, D. W., J. I. Weller, M. Ron, M. Band, J. E. Beever, E. Feldmesser, Y. Da, G. R. Wiggans, P. M. VanRaden, and H. A. Lewin. A genome scan for QTL influencing milk production and health traits in dairy cattle. Physiol. Genomics 1: 165–175, 1999.—A genome scan was conducted in the North American Holstein-Friesian population for quantitative trait loci (QTL) affecting production and health traits using the granddaughter design. Resource families consisted of 1,068 sons of eight elite sires. Genome coverage was estimated to be 2,551 cM (85%) for 174 genotyped markers. Each marker was tested for effects on milk yield, fat yield, protein yield, fat percentage, protein percentage, somatic cell score, and productive herd life using analysis of variance. Joint analysis of all families identified marker effects on 11 chromosomes that exceeded the genomewide, suggestive, or nominal significance threshold for QTL effects. Large marker effects on fat percentage were found on chromosomes 3 and 14, and multimarker regression analysis was used to refine the position of these QTL. Half-sibling families from Israeli Holstein dairy herds were used in a daughter design to confirm the presence of the QTL for fat percentage on chromosome 14. The QTL identified in this study may be useful for marker-assisted selection and for selection of a refined set of candidate genes affecting these traits.

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