Rumenotomy due to Metallic Foreign Bodies in Rumen of Adult Dairy Cow

presented the of frequent progressive and the The detailed clinical examination revealed that dull, depressed, reduced appetite and weakness, and the case was confirmed as traumatic reticuloperitonitis. The case was handled surgically by exploratory rumenotomy after preparing the surgical site was prepared aseptically and stabilizing with fluids and electrolytes preoperatively. Para-vertebral nerve block by using 2% lignocaine hydrochloride was done. A long skin incision starting about eight to ten centimeters below the transverse process of the lumbar was made vertically. The abdominal muscles and peritoneum were also incised following the skin incision. The rumen was fixed with the stay suture and metallic foreign bodies were removed using magnetic material through exploration. After removing the content of the rumen, it was closed by double lambert suture. Then closing the peritoneum and muscle with catgut by simple continuous pattern. The skin was sutured with nylon using a cross mattress suture. The cow was completely recovered after 20 days of follow-up observation. In the current case report, the successful management of traumatic reticuloperitonitis due to metallic foreign bodies in a cow is discussed.


Introduction
Ingestion of foreign bodies by ruminants is extremely common especially in developing countries, like Ethiopia, where the standard of animal management is unsatisfactory, and low nutritional statuses of ruminants have forced them to scavenge for food [1]. Rapid urbanization, industrialization, and acute mineral deficiencies are that predispose them for foreign body ingestion. Accordingly, they cause great production loss and decrease reproductive performance [2]. Ruminants frequently ingest irregular objects with potential risk of rumeno-reticular damage. Non-metallic foreign bodies, plastic foreign bodies, ropes, and pieces of old clothes are commonly ingested by cattle and accumulated in the reticulorumen causing a variety of ailments [3,4].Traumatic Reticuloperitonitis (TRP), also called hardware disease, is a relatively common disease in adult cattle that impairs reticuloruminal motility. It is caused by the ingestion and perforation of the reticular wall resulting in acute perireticular inflammation followed by peritonitis, pleuritis, and/or pericarditis, in addition to sepsis, restrictive adhesions, and abscess formation., Perireticular adhesions, and abscesses [5,6].
The condition is usually caused by long, thin, sharp foreign bodies (wire, needles, nails) that penetrate the reticulum, peritoneum, diaphragm, and pericardial sac, eventually leading to traumatic pericarditis. This leads to inflammation of the pericardium, with the accumulation of serous or fibrinous inflammatory products [7]. The influencing factors of TRP include remodeling of livestock housing, careless handling of baling wires, pins, feed sack bags, and wires. The incidence is more in females than males shortly after calving [8,9]. Most cattle owners with hardware disease often present with complaints of rumeno-reticular dysmotility (bloat), abdominal discomfort (colic), anorexia, lethargy, and weight loss (falling behind). Recurrent rumen tympany, pale mucous membrane, rumen impaction, atony, reduction of rumen motility, scanty faces, partial anorexia, labored breathing, grunting, weight loss, and colic are common clinical signs of TRP [7,10].
Evidence of pain localized to the cranioventral abdomen, ruminal atony during auscultation, and pleural/peritoneal/ pericardial effusion during percussion should be performed during physical examination. Additionally, inflammatory leukogram, X-ray (detection of the presence of foreign body), and ultrasonography (characterizing pericardial effusion as well as determine the extent of the lesions and assess the prognosis) are best and preferred methods of diagnosis for before exploratory laparotomy or rumenotomy. Even though prevention should be the primary emphasis, the surgical management of hardware disease should aim at controlling infection and removing foreign bodies [1,4]. The present case report describes the history, signalment, physical, and surgical findings and result in adult dairy cattle following exploratory rumenotomy.

Case History and Clinical Examination
A multiparous nine-years-old cross-breed Holstein Friesian dairy cow weighing 280 kg with a medium body condition was presented to Veterinary Hospital, College of Veterinary Science (CVS), Mekelle University (MU), Ethiopia. The owner also told as the cow was suffering from grunting, grinding of tooth, abdominal pain, reduced feed intake, progressive weight loss, frequent abdominal distention, and falling behind. Besides, the cow graze extensively on the nearby premises and decreased milk production over the last three months. Upon arrival and physical examination, the cow was lethargic and highly depressed with a rough hair coat and dehydrated. Further close examination of vital organ parameters such as heart rate, respiratory rate, pulse rate, and mucous membrane revealed slightly elevated. Besides, upon poll and pinch grip test, the cow showed signs of pain, discomfort. Moreover, the cow was having difficulty in regurgitation, ruminal atony up auscultation, and intermittent straining at frequent intervals.
Accordingly, based on the history and clinical observation, the case was diagnosed as traumatic reticuloperitonitis and the team decided to manage surgically using exploratory rumenotomy.

Animal Handling, Anesthetic Protocol, and Preoperative Patient Preparation
Preoperatively, the cow was kept on antibiotics for three consecutive days and fluid therapy (5% Dextrose solution plus 0.9% NaCl, 1000ml stat, I.V., Addis pharmaceutical, Adigrat Ethiopia) to correct the dehydration status. The cow then was properly restrained with the combination of physical (using rope) and chemical methods (Detomidine hydrochloride, Dechra Veterinary Products Ltd., the United Kingdom at a dose of 20µg/kg Intravenously). Then, the skin surface on the left paralumbar fossa was prepared aseptically by washing with water, soap, and salvon ® (Cetrimide 3% and Chlorhexidine gluconate 0.5% solution). Then the hair was first clipped with sharp scissor and shaved with a razor blade and cleaned thoroughly with a standard solution of salvon ® .
Finally, the area was scrubbed three times with a povidone-iodine 1% solution to decrease the microbial load in the area and left dried till ready for Rumenotomy ( Figure 1A).

Surgical Correction
Abdominal surgery such as rumenotomy is a clean-

Post-Operative Follow Up and Result
Postoperatively, small skin bleeding was noticed but it is normal and helps to heal the wound unless continued for a long period.
Antiseptic wash of the incised area was done at second-and thirddays post-operative up to fourteen days until it completely healed.
The suture was removed after 14days. Besides, the cow was kept on fluid therapy (5% Dextrose solution, 1000ml stat, I.V.) antibiotic (Ceftriaxone, 5gm/kg, I.V.), and Meloxicam (0.5mg/kg, IM) for five successive days. Tetracycline wound spray was also applied around the wound ( Figure 1E).The owner was also advised to closely monitor the cow and to provide good nutrition to facilitate wound healing. After 20-day post-operation, the wound was healed completely and after two months of follow-up, the cow was under good health status (Figure 1).

Discussion
Surgical affections of the ruminant forestomach due to ingested foreign bodies are the subject of attention almost all over the world and of major economic importance due to severe loss of production and production ability [1,2,4]. These findings agree with the current cases in that there were weight loss and debilitation due to the presence of plastic foreign bodies in the cow's rumen.In the present case report, emaciation, pale mucus membrane, scanty feces, anorexia, rough hair coat, and distended abdomen were among the common clinical findings in the affected cow. These results were in agreement with the report by [1,4,11] in which animals with indigestible foreign body cannot able to digest feeds normally so that prone to feed deficiency which can be manifested by different clinical signs. Besides, most of the foreign bodies were removed from the rumen while the rest were removed from the reticulum.
This finding was in line with the findings of [1,2,12] that may result in enlargement of the rumen.
Rumenotomy is the most preferable method of removing metallic and plastic foreign bodies from the rumen and reticulum.
It is a clean-contaminated surgery since a hollow viscous is penetrated. Wound dehiscence, hemorrhage fever, edema, wound infection (peritonitis), death, intestinal obstruction/adhesion, and physiological bloat are among the commonly observed postoperative complications. Post-operative care should be emphasized through the administration of antibiotics and analgesics to minimize the risk of post-operative complications [8,13]. This was inconsistent with the current case report in terms of case handling, treatment, and post-operative care.Surgical removal of foreign bodies improved the body condition, feed intake, productivity, and wellbeing of the cow. This finding agreed with an experimental study conducted by [14] who concluded that the surgical removal of the foreign body did improve the health of the animals by increasing the feed intake, weight gain, and productivity following removal of the foreign body.
In Ethiopia, the extensive management system, shortage of forage during the dry season, and nutritional deficiency are considered as a major predisposing factor for acquiring indigestible rumen foreign bodies in ruminants. This resulted in a serious health impact on the cattle and a threat to the environment [1,2,4,8].
Similarly, the findings of the current study revealed the frequent occurrence of rumen foreign bodies in cattle. The indiscriminate ingestive behavior of cattle [9] as compared to small ruminants could be given as an explanation for the higher prevalence in this species. Moreover, widespread use and improper disposal of the non-bio-degradable free polythene or plastic shopping bags for packaging and other garbage and the poor waste management system in the country and shortage of animal feed could be reasons for the occurrence of the problem in ruminants [1,12].

Conclusion
The cattle owner should be advised to give a balanced type of feed to minimize the risk of ingesting foreign materials due to mineral deficiency. Besides, the movement of the animals should be restricted to avoid the predisposition to metallic and plastic foreign bodies. The owner should understand the outcome of the disease. So, recommend that once the case occurred it should have to bring the animals as early as possible before it is emaciated and immunologically compromised.