Breeding sheep with 4 teats in a flock in Devon, England
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چکیده
منابع مشابه
Application of myostatin in sheep breeding programs: A review
Myostatin or growth and differentiation factor 8 (GDF8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. This phenotype happens with high frequency in a breed of sheep known as the Texel. Quantitative trait loci (QTL) studies show that a portion of t...
متن کاملUltrasonographic Liver Findings in a Sheep Flock Involved in Chronic Fasciolosis
Background: Fasciola hepatica is a genus of the trematodes which mainly affects the liver of sheep and these livestock are accidentally infected by eating plants or drinking water contaminated with the metacercariae of this parasite. These parasites can cause considerable economic damage by destroying the liver and bile ducts. OBJECTIVES: The aim of this study was to evaluate the role of ultras...
متن کاملOccurrence of purulent mandibular and maxillary osteomyelitis associated with Pseudomonas aeruginosa in a sheep flock in south-west of Iran
This report describes an outbreak of purulent mandibular and/or maxillary osteomyelitis caused by Pseudomonas aeruginosa in a sheep flock located in the Khuzestan province, Iran. Jaw bones of almost 100 out of 500 mature sheep in a flock became severely deformed with a variably sized firm swelling, without any signs of inflammation in the surrounding soft tissues. The affected animals showed an...
متن کاملHaemonchosis in a sheep flock in North Finland
Background In May 2008 two sheep from a farm in Ylikiiminki (65°N 26°E) were autopsied at Finnish Food Safety Authority Evira in Oulu and diagnosed with a Haemonchus contortus infection. Haemonchus contortus has a few years ago been reported on the island of Hailuoto just outside Oulu, where it led to a lethal infection. Although this to sheep highly pathogenic nematode has been detected in Fin...
متن کاملDevelopment of Anthelmintic Resistance in a Closed Sheep Flock
Changes in anthelmintic resistance over the past 16 years is documented following the isolation of a field strain of Haemonchus contortus in sheep showing multiple anthelmintic resistance at Lawes in south eastern Queensland in 1979. Resistance to thiabendazole was first suspected in 1969 and continued to persist until the present time. In addition resistance to fenbendazole and oxfendazole als...
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ژورنال
عنوان ژورنال: Agricultural and Food Science
سال: 1988
ISSN: 1795-1895,1459-6067
DOI: 10.23986/afsci.72324