| What is Wallago attu locally known as in Manipur? | Sareng | Wallago attu (locally known as Sareng) is a highly valued culinary delicacy in Manipur, northeast
India. In view of its cultural and economic relevance, this study focused on developing culture
techniques and seed production protocols to support farming of this vulnerable species. Broodstock
were raised in ponds (0.2–0.5 ha) at Laphupat Tera, Imphal, using wild-caught juveniles. To
promote maturation, the brooders were fed with live carps and tilapia spawn and fry, achieving
maturity within just over a year. Induced breeding of selected broodfish (average 5080 g for
females and 1024 g for males) was successfully conducted using a synthetic hormone combination
(sGnRH analogue + Domperidone) at dosages of 0.8 ml/kg for females and 0.4 ml/kg for males,
which triggered spawning within 6–8 h. Fertilized eggs (1.8 ± 0.2 mm) hatched within 18–24 h at
26.2–26.8°C. Nursery rearing of the cannibalistic larvae, were fed with live zooplankton and carp
spawn, resulted in fry attaining lengths of 3.8–5.42 cm and weights of 2.0–2.8 g within 15 days,
with 65–70% survival. Grow-out trials in ponds (0.02–0.75 ha) showed that stocking 20-day-old
fingerlings (100–120 mm) at 2000–3000/ha, with regular size segregation and feeding of live fish,
allowed marketable harvest within 5 months. The findings highlight that periodic segregation of fry
and fingerlings is essential to reduce cannibalism and en | 31 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | Wallago attu (locally known as Sareng) is a highly valued culinary delicacy in Manipur, northeast
India. | 1 | [{"evidence_id":"B000006","location":{"page":1,"block":6,"bbox":[81.71,264.49,517.05,481.72],"column":null,"reading_order":6}}] | 1.0 | valid |
| Where were broodstock of Wallago attu raised? | Laphupat Tera, Imphal | Wallago attu (locally known as Sareng) is a highly valued culinary delicacy in Manipur, northeast
India. In view of its cultural and economic relevance, this study focused on developing culture
techniques and seed production protocols to support farming of this vulnerable species. Broodstock
were raised in ponds (0.2–0.5 ha) at Laphupat Tera, Imphal, using wild-caught juveniles. To
promote maturation, the brooders were fed with live carps and tilapia spawn and fry, achieving
maturity within just over a year. Induced breeding of selected broodfish (average 5080 g for
females and 1024 g for males) was successfully conducted using a synthetic hormone combination
(sGnRH analogue + Domperidone) at dosages of 0.8 ml/kg for females and 0.4 ml/kg for males,
which triggered spawning within 6–8 h. Fertilized eggs (1.8 ± 0.2 mm) hatched within 18–24 h at
26.2–26.8°C. Nursery rearing of the cannibalistic larvae, were fed with live zooplankton and carp
spawn, resulted in fry attaining lengths of 3.8–5.42 cm and weights of 2.0–2.8 g within 15 days,
with 65–70% survival. Grow-out trials in ponds (0.02–0.75 ha) showed that stocking 20-day-old
fingerlings (100–120 mm) at 2000–3000/ha, with regular size segregation and feeding of live fish,
allowed marketable harvest within 5 months. The findings highlight that periodic segregation of fry
and fingerlings is essential to reduce cannibalism and en |
| What was the survival rate of Wallago attu fry during nursery rearing? | 65–70% survival | e species. Broodstock
were raised in ponds (0.2–0.5 ha) at Laphupat Tera, Imphal, using wild-caught juveniles. To
promote maturation, the brooders were fed with live carps and tilapia spawn and fry, achieving
maturity within just over a year. Induced breeding of selected broodfish (average 5080 g for
females and 1024 g for males) was successfully conducted using a synthetic hormone combination
(sGnRH analogue + Domperidone) at dosages of 0.8 ml/kg for females and 0.4 ml/kg for males,
which triggered spawning within 6–8 h. Fertilized eggs (1.8 ± 0.2 mm) hatched within 18–24 h at
26.2–26.8°C. Nursery rearing of the cannibalistic larvae, were fed with live zooplankton and carp
spawn, resulted in fry attaining lengths of 3.8–5.42 cm and weights of 2.0–2.8 g within 15 days,
with 65–70% survival. Grow-out trials in ponds (0.02–0.75 ha) showed that stocking 20-day-old
fingerlings (100–120 mm) at 2000–3000/ha, with regular size segregation and feeding of live fish,
allowed marketable harvest within 5 months. The findings highlight that periodic segregation of fry
and fingerlings is essential to reduce cannibalism and ensure successful culture of this commercially
important species, contributing to both aquaculture development and conservation. | 785 | factual | 1.0 |
| What is the IUCN Red List status of Wallago attu? | It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. | ALLAGO attu is a large freshwater catfish
found in rivers, reservoirs and connected
watersheds across the Indian subcontinent, including
India, Pakistan, Bangladesh, Nepal, Burma, Sri Lanka,
Thailand, Vietnam, Kampuchea and Indonesia. This
bony fish is commonly known as freshwater shark,
belonging to the family Siluridae, grows to about 2 m,
weighing over 45 kg,with a calculated lifespan of about
10 years. Its rapid growth, majestically elongated and
silvery body and highly nutritious flesh encourage
investigation into its aquaculture potential. The present
decline in yield from wild fisheries lists W. attu as an
endangered species. It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. Increased consumer
demand is stimulating the development of intensive
aquaculture for this species in Asian countries. Methods
for induced spawning and successful hatching of eggs
were successfully performed by various, however, a | 641 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. |
| What recent declaration did the Chief Minister of Manipur make regarding Sareng? | Very recently, the Chief Minister of Manipur
declared the revival of Sareng in the state, the need of
the hour. | major constraint in successfully rearing W. attu larvae
is the high mortality rate due to intense cannibalism
during early life stages. Known as “Sareng” in Manipuri,
Wallago attu is a highly preferred and royal delicacy.
In Manipur, a grand feast is generally considered
incomplete without Sareng. However, capturing Sareng
in Manipur have virtually ceased and the population of
this species has been drastically reduced. Consequently,
a huge quantity of frozen Sareng is imported from other
states. Very recently, the Chief Minister of Manipur
declared the revival of Sareng in the state, the need of
the hour. In this regard, the ICAR Research Complex
for NEH Region, Manipur Centre, has worked closely
with dedicated fish farmers to develop culture and seed
production technologies of Sareng. | 501 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | Very recently, the Chief Minister of Manipur
declared the revival of Sareng in the state, the need of
the hour. | 1 | [{"evidence_id":"B000010","location":{"page":1,"block":10,"bbox":[303.63,539.35,552.42,720.79],"column":2,"reading_order":10}}] |
| What is the IUCN Red List status of Wallago attu as of 2019? | It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. | ALLAGO attu is a large freshwater catfish
found in rivers, reservoirs and connected
watersheds across the Indian subcontinent, including
India, Pakistan, Bangladesh, Nepal, Burma, Sri Lanka,
Thailand, Vietnam, Kampuchea and Indonesia. This
bony fish is commonly known as freshwater shark,
belonging to the family Siluridae, grows to about 2 m,
weighing over 45 kg,with a calculated lifespan of about
10 years. Its rapid growth, majestically elongated and
silvery body and highly nutritious flesh encourage
investigation into its aquaculture potential. The present
decline in yield from wild fisheries lists W. attu as an
endangered species. It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. Increased consumer
demand is stimulating the development of intensive
aquaculture for this species in Asian countries. Methods
for induced spawning and successful hatching of eggs
were successfully performed by various, however, a | 641 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. |
| What role has the ICAR Research Complex for NEH Region, Manipur Centre, played in the development of Sareng culture? | In this regard, the ICAR Research Complex
for NEH Region, Manipur Centre, has worked closely
with dedicated fish farmers to develop culture and seed
production technologies of Sareng. | major constraint in successfully rearing W. attu larvae
is the high mortality rate due to intense cannibalism
during early life stages. Known as “Sareng” in Manipuri,
Wallago attu is a highly preferred and royal delicacy.
In Manipur, a grand feast is generally considered
incomplete without Sareng. However, capturing Sareng
in Manipur have virtually ceased and the population of
this species has been drastically reduced. Consequently,
a huge quantity of frozen Sareng is imported from other
states. Very recently, the Chief Minister of Manipur
declared the revival of Sareng in the state, the need of
the hour. In this regard, the ICAR Research Complex
for NEH Region, Manipur Centre, has worked closely
with dedicated fish farmers to develop culture and seed
production technologies of Sareng. | 613 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | In this regard, the ICAR Research Complex
for NEH Region, Manipur Centre, has worked closely
with dedicated fish farmers to develop culture and seed
production technologies of Sareng. |
| What family does Wallago attu belong to? | belonging to the family Siluridae | ALLAGO attu is a large freshwater catfish
found in rivers, reservoirs and connected
watersheds across the Indian subcontinent, including
India, Pakistan, Bangladesh, Nepal, Burma, Sri Lanka,
Thailand, Vietnam, Kampuchea and Indonesia. This
bony fish is commonly known as freshwater shark,
belonging to the family Siluridae, grows to about 2 m,
weighing over 45 kg,with a calculated lifespan of about
10 years. Its rapid growth, majestically elongated and
silvery body and highly nutritious flesh encourage
investigation into its aquaculture potential. The present
decline in yield from wild fisheries lists W. attu as an
endangered species. It was assessed for the IUCN
Red List of Threatened Species in 2019 and listed as
Vulnerable under criterion A2d. Increased consumer
demand is stimulating the development of intensive
aquaculture for this species in Asian countries. Methods
for induced spawning and successful hatching of eggs
were successfully performed by various, however, a | 289 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | This
bony fish is commonly known as freshwater shark,
belonging to the family Siluridae, grows to about 2 m,
weighing over 45 kg,with a calculated lifespan of about
10 years. |
| When does Wallago attu generally breed in its natural habitat? | Wallago attu generally
breeds in its natural habitat during the rainy season. | prawns. The feeding frequency in the adult stage is
higher in all months except July and August. It has an
enormous mouth and a deep fissure extends far behind
its eyes. Jaw teeth are arranged in broad rows with two
small patches of vomerine teeth. Wallago attu generally
breeds in its natural habitat during the rainy season.
Seeds are available from June to August in the rivers
and tributaries of the Barak River at Jiribam and can be
collected from breeding grounds. | 249 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | Wallago attu generally
breeds in its natural habitat during the rainy season. | 2 | [{"evidence_id":"B000015","location":{"page":2,"block":2,"bbox":[45.35,202.33,294.14,311.75],"column":0,"reading_order":2}}] | 1.0 | valid |
| When are seeds of Wallago attu available in the Barak River at Jiribam? | Seeds are available from June to August in the rivers
and tributaries of the Barak River at Jiribam and can be
collected from breeding grounds. | prawns. The feeding frequency in the adult stage is
higher in all months except July and August. It has an
enormous mouth and a deep fissure extends far behind
its eyes. Jaw teeth are arranged in broad rows with two
small patches of vomerine teeth. Wallago attu generally
breeds in its natural habitat during the rainy season.
Seeds are available from June to August in the rivers
and tributaries of the Barak River at Jiribam and can be
collected from breeding grounds. | 327 | factual | 1.0 | https://epubs.icar.org.in/index.php/IndFarm/article/download/174022/63859/503163 | Seeds are available from June to August in the rivers
and tributaries of the Barak River at Jiribam and can be
collected from breeding grounds. | 2 | [{"evidence_id":"B000015","location":{"page":2,"block":2,"bbox":[45.35,202.33,294.14,311.75],"column":0,"reading_order":2}}] | 1.0 | valid |