Abstract
In the summer of 2018, the archaeological excavation of Taghiabad Tepe land 2 was carried out in Varamin city.  The areas are located in the north of Taghiabad village and in the south of Ajorbast village of Javadabad Varamin. The excavation findings include the Bronze Age and Iron Age cultural periods. Among the valuable findings of this site were animal remains, which are very important to understand the subsistence system of this site. The most important goal of this article is knowing the subsistence economic system among the society living in the Iron Age based on zooarchaeological studies in Tagh. The main question that is raised in this research is, how can the animal species be identified in this area and how can the bone remain of animals be used in the reconstruction of the livelihood of the studied period? On the bone findings of the Iron Age area of Taghiabad (1&2) the traces of burns and cuts can be seen on some bones, which may have been caused by butchering. The basis of this research is based on studies on animal finds that were obtained in the archaeological excavations of Taghiabad Tepe 1 and 2. The findings of the research show the use of sheep, goat, cattle, gazelle, deer, susscrofa, urial, canine and birds’ species in Taghiabad Tepe 2. The study showed that animal husbandry played an important role in the livelihood of the people of that area. 
Keywords: Iron Age, Subsistence Economy, Varamin Plain, Zooarchaeological.

Introduction
Depiction of subsistence, environmental and other living conditions of ancient societies is one of the most important approaches in archaeology and anthropology which is considered a multidisciplinary approach that requires archaeologists, biologists and ecologist cooperation.
By using zooarchaeology theories and based on analysis on animal remaining, archaeologists try to understand the different aspects animal’s livings and depict the interaction between the man and animal. 
Historically, zoologists only presented the recognizable species but recent studies on the remaining provide a more through insight. (Davis, 1987: 23) 
Identifying the species their prevalence and sex could be of immense value in the strategy of selecting the animal for herding and use of their flash. 
The main question in this study (Which is based on findings of Taghiabad site under supervision of Dr. Morteza Hessari in 2018 to identify the diet of residents in Taghiabad in Varamin Plain) is to scientifically identify the animal species and their role in meat provision. Moreover, if the residents were using domestic animals’ flesh or hunted animal and their ratio, if they were animal herders or farmers as well.
The most important goal of studying these remains is to reconstruct the animal-human behavior towards animals and his environment. 
Based on these introductions, identifying the species and being whether domestic or wild is one of the goals of this study.
With this approach the prevalence and ratio of species in an area is another goal.
The first review revealed the animal species which helped to identify the subsistence strategies such as animal herding and hunting were identified.
Understanding the human-environment relationship, ecologic, specifications of studied society and other conditions such as environmental changes could be achieved by bone analysis. (O’Conner, 2018). 
By studying the domestic animal bones, we could understand the herding methods and their goals of animal herding. 

Taghiabad Site
This site is located in agriculture zone of Adjorbast village in Pishva town of Varamin district. This site is named as Taghiabad1 and Taghiabad2.

Animal Findings
In this study the animal remaining which were recovered through the first season of excavation in 2018, have been analyzed, which dates back to Iron Age (1&2). First of all, the bones have been prepared by numbering and locus allocation. Then the species and the organs were recognized by using animal bones manual and bank of animal bones. 
Number of identified Specimens (NISP) Iron Age of Taghiabad 1
326 pieces of bones had been retrieved from Taghiabad1 related to Iron Age, 225 pieces related to Iron Age1 and 101 pieces related to Iron Age2 and 386 pieces belongs to Taghiabad2 (379 pieces related to Iron Age1 and 7 pieces from Iron Age2).
Species recognized in Taghiabad1 contains: sheep 114  pieces (71 pieces from Iron Age 1 and 43 pieces Iron Age2), goat 9 (6 Iron Age1 and 3 Iron Age2), gazelle 26 (19 pieces Iron Age1 and 7 Iron Age2), cattle 32 ( 19 pieces Iron Age1 and 13 Iron Age2), fox 1 piece related to Iron Age2, 8 pieces of canine from Iron Age1, small carnivorous 2 pieces from Iron Age2, equid 2 pieces from Iron Age2, equus 8 pieces (6 Iron Age1 and 2 pieces Iron Age2), sus scrofa 2pieces from Iron Age1, deer 1 piece from Iron Age1, 3 pieces of avian (1 from Iron Age1 and 2 Iron Age2), 1 piece of urial (Iron Age1) and 118 broken and non-recognizable pieces.

Number of identified Specimens (NISP) Iron Age of Taghiabad 2
63 pieces of sheep bones had been retrieved from Taghiabad2 related to Iron Age, 62 pieces related to Iron Age1 and 1 piece Iron Age2, goat 5 pieces (Iron Age1), gazelle 10 pieces (9 Iron Age1 and 1 Iron Age2), cattle 23 pieces (Iron Age1), canine 10 pieces (9 Iron Age1 and 1 Iron Age2), 1 piece of small carnivorous from Iron Age1, 2 pieces of equid from Iron Age1, 1 piece of equus from Iron Age2, 1 piece of equus asinus from Iron Age1, 11 pieces of sus scrofa from Iron Age1,  I piece of deer from Iron Age1, 1 piece of avian from Iron Age1 and 257 broken and non-recognizable.
34%were sheep and 2% goat bones in Taghiabad1, while in Taghiabad2 16% were sheep and 1% were goat bones. The found items were jaw, teeth, scapula, pelvis, ribs and vertebra bones. 
On some of the bones cut marks and burns were obvious. Cut marks are probably secondary to peeling and butchery process by a knife-like instrument. Abnormalities and bone reactions were seen on some items, most of them were adult to death.
Injuries which could be found on the bones are mostly manmade such as breaking the bones to have access to bone marrow, marks related to peeling process or cutting meat off the bones, burning marks secondary to cooking process and bite marks (Merritt, Sr 2016).
And the other injuries such as bite marks or signs of alimentation which caused by other animals.
17 pieces (11.8%) out of 144 goat and sheep bones and 3 (23%) out of 13 cattle bones were non adult I Iron Age1.
Most of the sheep and goats were adult at death which means they were exploited not only for primary product (meat) but also secondary products (milk, wool, breeding…). One of the advantages of goats is their reproductivity which makes their milk accessible. Cattles were being exploited not only for primary and secondary products but also for daily labor as transportation and plowing but duo to scarcity of their bones it could not be a precise finding.

Conclusion
By identifying the species from finding of Taghiabad, we could understand the strategies of subsistence such as herding and hunting and interactions among human- animals environment, which shows the important role of herding. The main sources of meat supply in Taghiabad site during Iron Age were sheep, goat and cattle (46.8%), sheep was the most found one then cattle and goat respectively. The reason for prevalence of cattle is its role in secondary products supply and its role in labor and transportation which is reflected in deformities on their bones. Equid, like cattle, were being used for labor and riding as well, most of them were adult at death which amplifies their role as secondary product supply source.
The most hunted animal were gazelles and sus scrofa (8.2% in Taghiabad1 and 5.59% in Taghiabad2). Comparison of findings from other sites of central Iran shows the equal importance of sheep and cattle herding among all of them in all Ages. Sheep was always more than goats. Study of the sus scrofa’s bones showed that except one sample, all the others were wild animals. Finally, we must emphasis that more precise results, require as more precise studies.