Research Results - (PDF, 101 mb) - USAID

Table 5. Dry matter consumption (kg/100 kg riedale sheep grazing native range in southern
BW) of oat straw by llama, alpaca, and sheep. Peru were determined. Diet composition and
nutrition varied with season and herding.
Llama Alpaca Sheep Sheep diet composition was influenced by
available forage and thus shifted from short-
Whole 1.0 1.2 2.2 grass in the dry season to grass-like plants in the
Chopped 1.0 1.2 1.7 early rainy season and to tall grasses in the late
Treated with ammonia*1.4 1.6 2.4 rainy season. Forbs consisted of 10% of the diet
*Urea 3%
and appeared to be of nutritional importance.
Crude protein (CP), highly correlated to digestible
energy, decreased from 13.6% to 5.6% with
Consumption was positively affected by
urea treatment in all three species. This suggests
that treatment with urea can increase
increasing maturity of vegetation (Table 6).
consumption of oat straw. Table 6. Means and standard errors for percentages
of crude protein (CP), and organic
Project Achievements matter digestibility (IVOMD), contents of
sheep diets, Chuquibambilla Research Station,
Six B.S. theses were produced from this Peru.
work: one at Huancayo University, two at
Cuzco University, one at IV1TA-San Marcos Month CP (%) IVOMD (%)
University, and two at UNA-La Molina. See
Jun.
'
7.1±0.30 55.2±0.02 b
Publications.
Jul. 9.5±0.36c' 59.7±0.01a b
In addition, one presentation was made Aug. 5.6±0.21f 56.1±0.01bc Oct. 7.4±0.39d 52.9±0.01kb and an abstract published at the APPA meeting
in Lima by Valenza et al. See Publications. Nov. 5.5±0.531 48.5±0.04c
Dec. 9.1±0.64d 60.9±0.01a'
Jan. 13.6±0.42A 60.1±0.01 a' Feb. 12.1±0.53a 3. Field work has ceased and
publications are pending for the
following projects.
' 68.2±0.01a
Mar. 11.1±0.66c 60.6±0.02&b
"Values within the same column vith the same
" Community validation and testing
* Rate of digestion of tree and shrub foliage by
goats.
superscript are not statistically different
(P>0.05).
'All nutrient contents were calculated on dry
matter basis.
Intake was influenced by season, with
" Selectivity, diet quality and intake by goats
North Coast rangeland. lower intake values of 82.8 g/kg BW')Ts observed
on Nrduring the dry season vs 99.7 g/kg BWOT
4. For studies of range animal nutrition
and range management, the following
results apply.
A. Nutrition of herded sheep.
Botanical and nutritional compositions
of diet and voluntary intake by herded Cor­
122
during the wet season (Table 7).