نتایج جستجو برای: domestic ruminants
تعداد نتایج: 79592 فیلتر نتایج به سال:
Ruminants are efficient users of diets poor in amount and quality of crude protein (CP) because ruminal microbes synthesize a large proportion of the animal’s needs for metabolizable protein and essential amino acids (EAA). In addition, microbial utilization of ammonia allows the feeding of non-protein N (NPN) compounds, such as urea, and enables ruminants to utilize urea-N that is recycled to ...
Following several clinical cases of suspected bovine virus diarrhoea (BVD) on three Namibian cattle farms, a serological survey was conducted on bovine, ovine, caprine and wild ruminant sera originating from different regions of the country. Neutralizing antibodies to BVD virus (BVDV) were detected in 58% of 1,014 cattle sera, 14% of 618 sheep sera and 4.6% of 1,118 goat sera. Sera from seven o...
tal infection of the Mongolian gerbil (Meriones unguiculatus) with Trichostrongylus axei. J. Parasit. 47 (4, sec. 2 ) : 19. . 1963a. Studies on Trichostrongylus axei (Cobbold, 1879). VIII. Some quantitative aspects of experimental infection of the Mongolian gerbil (Meriones unguiculatus). J. Parasit. 49: 617-622. . 1963b. Preliminary evaluation of Trichostrongylus axei in the Mongolian gerbil a...
This study collates compositional analysis of seaweeds data with information generated from in vitro gas production assays the presence and absence seaweeds. The aim was to assess rank 27 native northern European as potential feed ingredients for use reduce methane emissions ruminants. It provides future vivo dietary trials concerning manipulation strategies CH 4 efficiently domestic ruminants ...
Four stocks of Ehrlichia ruminantium (Welgevonden, Ball3, Nonile and Blaauwkrans), the causative agent of heartwater in domestic ruminants, were isolated into Ixodes scapularis (IDE8) tick cells using the leukocyte fraction of the blood of infected sheep. Organisms of two of the E. ruminantium stocks (Welgevonden and Blaauwkrans) propagated in IDE8 cells were also successfully used to infect bo...
The economic importance of the trematode Schistosoma bovis in African livestock has justified the development of a specific vaccine. Administered preventively to sheep, rSb28GST--the only molecule cloned from S. bovis which has demonstrated vaccine potentialities in goats and cattle--reduced the mean worm burden in vaccinated animals and improved their health status compared with that of non-va...
Lumpy skin disease, sheeppox and goatpox are high-impact diseases of domestic ruminants with a devastating effect on cattle, sheep and goat farming industries in endemic regions. In this article, we review the current geographical distribution, economic impact of an outbreak, epidemiology, transmission and immunity of capripoxvirus. The special focus of the article is to scrutinize the use of c...
The study aimed to determine the prevalence of peste des petits ruminants in the arid zone (Niamey, Tillabéry and Tahoua) of the Republic of Niger. A serological survey was conducted and 519 serum samples were collected from 253 unvaccinated sheep and 266 unvaccinated goats. The sample included 340 female animals (168 sheep and 172 goats) and 160 kids and lambs (78 lambs and 82 kids). A competi...
A cross-sectional study was conducted in Egypt to determine the prevalence of Middle East respiratory syndrome coronavirus (MERS-CoV) in imported and resident camels and bats, as well as to assess possible transmission of the virus to domestic ruminants and equines. A total of 1,031 sera, 1,078 nasal swabs, 13 rectal swabs, and 38 milk samples were collected from 1,078 camels in different types...
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