Analysis of availability of ruminant feed in Tuban Regency, East Java



Asri Nurul Huda(1*), Mashudi Mashudi(2), Aulia Puspita Anugra Yekti(3), Trinil Susilawati(4), Kuswati Kuswati(5), Awang Tri Satria(6)

(1) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(2) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(3) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(4) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(5) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(6) Animal Science Faculty, Brawijaya University, Malang, East Java, Indonesia
(*) Corresponding Author

Abstract


Tuban Regency had a large ruminant population of 336,063 or equivalent to
235,427.2 AU consisting of 334,143 beef cattle, 89 dairy cattle and 1,831 buffaloes (Fisheries
and Animal Husbandry Department, Tuban Regency, 2017), but the productivity per individual
and the rate of population growth in this region were quite low. The availability of ruminant
feed in the Tuban Regency for the development of ruminants was still needed to be evaluated
especially if it was associated with its productivity. The research was conducted in 20 sub-
districts in Tuban Regency by both survey and secondary data analysis. Data analysis was
focusing on ruminant animal’s populations, land usage, food crop production, forage
production, topography, and climate. Analysis of potency of ruminant feed consisted of
potential feed from agriculture and plantation waste from a particular area such as grasslands,
fields, forests, and others. Ruminant animal population conversion was carried out by
equalization in animal units (AU), cattle = 0.7 AU; buffalo = 0.8 ST; sheep = 0.07 ST and
goats = 0.08 ST. Feed requirements for each AU were 9.1 kg DM/day. The result showed that
feed carrying capacity in 7 sub-districts in Tuban Regency has negative values and 13 other
sub-districts were positive. The average value of feed capacity in Regency as a whole is -
1236.563, which means that between feed availability and feed requirement was the deficit. It
could be concluded that Tuban Regency still cannot develop a population of ruminants. It was
recommended to overcome these problems by supplying of forage and agricultural wastes from
outside the region around Tuban Regency, such as Bojonegoro, Lamongan, Rembang, and
Blora Regency. Other efforts to overcome this problem were increasing of planting forages on
marginal lands and applying feed preservation technology livestock.


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