We Pigs News for 07-15-2018

Eye Problems in Guinea Pigs

Healthy guinea pigs secrete a white fluid from near the eye which they then groom over their faces with their forepaws several times a day. A healthy guinea pig has large, open eyes which are very bright and moist. Despite their bright appearance guinea pigs have amongst the worst sight in caged pets and rely on movement and smell to make their way around. This is partly the reason for their very vocal personalities; they are relying on the noise to tell other guinea pigs where they are, what they are doing and how they are feeling; it is unlikely they would ever find each other in the wild otherwise! Guinea pigs can go blind for various reasons to do with eye health, but this is not the disaster it would be for many other pets; they can hardly see their paws in front of their faces at the best of times! 

Because guinea pigs like to forage about and snuffle in their bedding, they sometimes get injuries to the eye. If this happens the eye will develop an opaque covering, which is to protect the eye while it heals. Eye ointments available over the counter are useful to have handy if your guinea pig suffers from pea eye or has a foreign body which has been flushed out naturally by tears. An eye problem in a guinea pig is not in itself serious, but may lead to depression and lack of appetite. Guinea pigs can quickly become quite ill with gut problems if they are not eating the correct diet and so it is important to keep them free of other problems so as to prevent this. 

There is no real way of preventing eye problems in guinea pigs as most are caused by congenital problems, such as entropion (in-turned eyelashes), accident or old age. It is important to check with the vet if the pig has trouble with its eyes and it is likely that it will become possible, with a little training, to cope with minor problems such as foreign bodies or inflamed pea eye at home without another visit. With guinea pigs it is always a matter of weighing up the pros and cons as to whether a visit to the vet will do more harm than good. 

Keywords: [“pig”,”eye”,”guinea”]
Source: http://netvet.co.uk/guinea pigs/eye-problems.htm

Scientists create glow-in-the-dark PIGS after injecting them with jellyfish DNA

Scientists create the world’s first glow-in-the-dark PIGS after injecting them with jellyfish DNA Scientists at South China Agricultural University in Guangdong Province say that the 10 piglets could help them develop cheaper drugs for humans. Chinese scientists have created the world’s first glow-in-the-dark pigs that emit a fluorescent green light. The piglets acquired their bizarre ability to glow under ‘black’ or UVA light after their embryos were injected with DNA from a jellyfish. GREEN RABBITS AND OTHER GLOW-IN-THE-DARK ANIMALS. Researchers in Hawaii and Turkey successfully created a litter of eight rabbits, including two kits that glow green when the lights are out, in August of this year. 

The experiment, which used fluorescent protein from jellyfish, furthers the research started in the 1980s when glow in the dark mice were created. While most glow green in the dark, in 2007 South Korean scientists managed to develop cats that glowed red under ultraviolet light. The same method was used to create the world’s first glow-in-the-dark rabbits in Turkey earlier this year, where they are currently working to create a glowing sheep. Dr Zhenfang Wu and Dr Zicong Li of the South China Agricultural University have detailed the research that produced the pigs in a study that will be published the journal Biology of Reproduction. In a video accompanying the research, the pigs grunt when the lights are turned off and after a short while begin to squeal, perhaps hinting that they are a little scared of the dark. 

Dr Moisyadi said the animals are not affected by the fluorescent protein and will have the same life span as other pigs. The ultimate goal of the research is to introduce beneficial genes into larger animals to create less costly and more efficient medicines. The Institute for Biogenesis Research at the John A. Burns School of Medicine focuses on reproductive research. 

Keywords: [“research”,”pig”,”animal”]
Source: http://www.dailymail.co.uk/sciencetech/article-2529901/Scientists-create…

Prevalence and characteristics of Shiga toxin-producing Escherichia coli in finishing pigs: Implications on public health

Shiga toxin-producing Escherichia coli are important food-borne pathogens, which can cause serious illnesses, including hemorrhagic colitis and hemolytic uremic syndrome. To study the epidemiology of STEC in finishing pigs and examine the potential risks they pose for human STEC infections, we conducted a longitudinal cohort study in three finishing sites. Six cohorts of pigs were randomly selected, and fecal samples were collected every two weeks through their finishing period. Eighty-two pigs shed STEC at least once, and the proportion of STEC-positive pigs varied across sites and cohorts. Clinically important serotypes, O157:H7 and O26:H11, were recovered from two pigs at sites C and A, respectively. 

The most common serotype isolated was O59:H21, which was particularly prevalent in site B as it was recovered from all STEC positive pigs. Each cohort showed different patterns of STEC shedding, which were associated with the prevalent serotype. The median shedding duration of STEC in pigs was 28 days, consistent with our prior study. Among pigs shedding O59:H21 at least once, pigs in cohort B2 had a significantly longer shedding duration of 42 days compared to other cohorts. Stx2e was the most commonly observed stx variant in finishing pigs, in accordance with the previous studies. 

Stx2e has been reported to be significantly associated with edema disease in pigs the pathogenicity in humans warrants further investigations. Our findings affirm that pigs are an important reservoir for human STEC infections, and that the circulating serotypes in a cohort and site management factors may significantly affect the prevalence of STEC. Molecular characterization of STEC isolates and epidemiological studies to identify risk factors for shedding in pigs are strongly warranted to further address the significance to public health and to develop mitigation strategies. 

Keywords: [“pigs”,”STEC”,”cohort”]
Source: https://www.sciencedirect.com/science/article/pii/S0168160517304476

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