Page 23 - Effects of dried citrus pulp on nutrient intake, nitrogen balance and growth performance in Lohi lambs

Castrillo et al. (2004) examined the effects of substitution of barley with citrus pulp
on diet intake, digestibility and production of lactating ewes offered mixed diets based on

ammonia-treated barley straw. For this purpose, they used twenty-eight lactating ewes of
days 12 to 52 after lambing. Four dietary concentrates containing 100: 0 (T1); 66: 33 (T2);

33: 66 (T3) and 0: 100 (T4) of barley to citrus pulp proportions, respectively, were fed to

these ewes. These animals were offered a common diet for 11 days after lambing as an
adaptation period. After that, 850 g/day of each experimental concentrate along with 850

g/day of chopped barley straw were offered to these ewes for a period of 14 days. After

that, each animal received same quantity of the concentrate but barley straw was fed at ad
libitum. Total collection method was used to determine the digestibility. It was observed

that OM and NDF digestibility increased linearly (P> 0.05) as the levels of citrus pulp was
increased in the diet. However, a non-significant effect was observed on DM digestibility

due to variation in the ash contents of these diets.

Barrios-Urdaneta et al. (2003) performed an experiment to examine the effect of

DCP on nutrient digestibility in ruminally cannulated ewes. Four experimental diets were
formulated by 100 + 0, 66 + 33, 33 + 66, and 0 + 100% DCP + ammonia treated wheat

straw respectively. Four ruminally-cannulated ewes were fed at a rate of 0.8 kg/ ewe/ day

in 4x4 latin square design. The results showed non-significant effects of DCP on DM and
OM digestibility whereas NDF digestibility increased with increasing the levels of DCP in

diets of cannulated ewes. This might be due to the fact that treatment differences in the
current experiment were smaller than expected due to which non-significant effects on

nutrient digestibility were observed.

Bueno et al. (2002) carried out an experiment to evaluate the effect of DCP in
replacement of corn grain (concentrate energy source) and its effect on nutrient digestibility

in Saanen kids. Sixteen kids were taken into metabolic cages. Corn was replaced by DCP
at 0, 23, 46 and 66.5% as concentrate energy source and fed to animals along with ad

libitum chopped grass hay. Results revealed that DM and OM digestibility was higher in
those Saanen kids fed diet having 33% DCP. There was a higher digestibility of CP in 0%,

ADF in 100% and NDF in 100% DCP in diets.

Similar results were observed by Miron et al. (2002) who performed an experiment
to evaluate the effect of DCP on nutrient digestibility in dairy cows. Ten cows were divided

into two experimental groups. First group was fed TMR having 10% DCP and 20% corn

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