THE PHILIPPINE WATER BUFFALO
THE PHILIPPINE WATER BUFFALO
THE PHILIPPINE WATER BUFFALO
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Keywords: caraheifers, chromic oxide-lignin ratio,<br />
digestibility, voluntary intake<br />
* Abstracts of Completed Researches. 1981-1986.<br />
PCRDC-PCARRD, CLSU, Muñoz, Nueva Ecija. Also<br />
in OED-PCC-DA Abstracts: Water Buffalo Researches<br />
in the Philippines. 1981-1995. p. 27<br />
F-58<br />
DIGESTIBILITY AND VOLUNTARY FEED INTAKE<br />
STUDIES OF GRAZING CARABAO UNDER<br />
<strong>THE</strong>MEDA (<strong>THE</strong>MEDA TRIANDRA FORKS) RANGE<br />
PASTURE. IV. DETERMINATION OF VOLUNTARY<br />
INTAKE AND DIGESTIBILITY BY CHROMIC OXIDE<br />
CHROMOGEN RATIO TECHNIQUE WITH<br />
CARAHEIFERS DURING SUMMER*<br />
B. H. Romulo, Instructor, Department of Animal Science, College of<br />
Agriculture, Central Luzon State University<br />
L. Constantino, Student, Department of Animal Science, College of<br />
Agriculture, Central Luzon State University<br />
D. L. Aquino, Science Research Assistant, Philippine Carabao Research<br />
and Development Center, Philippine Council for Agriculture and Resources<br />
Research Development, Central Luzon State University<br />
G. T. Concepcion, Science Research Aide, Philippine Carabao Research<br />
and Development Center, Philippine Council for Agriculture and Resources<br />
Research Development, Central Luzon State University<br />
A total of six caraheifers, two to three years old, with<br />
body weights ranging from 280 to 297 kg were used to<br />
determine the voluntary intake and digestibility of Themeda<br />
during summer. The calculated mean of voluntary dry<br />
matter intake was 3.78 ± 0.18% kg, equivalent to 1.31 ±<br />
0.06% of the body weight. Digestion coefficient for crude<br />
fiber (CF), crude protein (CP), nitrogen-free extract (NFE)<br />
and ether extract (EE) were 40.61 ± 1.32, 56.58 ± 2.21,<br />
17.00 ± 3.63, 52.41 ± 1.77 and 59. 61 ± 5.10%,<br />
respectively. Total digestible nutrient was found to be<br />
45.26 ± 1.56% and digestible energy was 356.08 ±<br />
74.84 cal/gram.<br />
Keywords: caraheifers, chromic oxide chromogen ratio,<br />
digestibility. Voluntary feed intake<br />
*Abstracts of Completed Researches. 1981-1986.<br />
PCRDC-PCARRD, CLSU, Muñoz, Nueva Ecija. Also<br />
in OED-PCC-DA Abstracts: Water Buffalo Researches in<br />
the Philippines. 1981-1995. p. 27-28.<br />
F-59<br />
DETERMINATION OF VOLUNTARY DRY MATTER<br />
INTAKE AND DIGESTIBILITY OF <strong>THE</strong>MEDA<br />
(<strong>THE</strong>MEDA TRIANDRA FORSK) PASTURE BY<br />
CHROMIC OXIDE-ACID INSOLUBLE ASH RATIO<br />
TECHNIQUE ON CARACOWS (BUBALUS BUBALIS<br />
LINN.)*<br />
FEEDING AND NUTRITION<br />
N. P. Rosete, Student, Department of Animal Science, College of Agriculture,<br />
Central Luzon State University<br />
S. P. Neric, Professor, Department of Animal Science, College of Agriculture,<br />
Central Luzon State University<br />
S. S. Bumagat, Instructor, Department of Animal Science, College of<br />
Agriculture, Central Luzon State University<br />
Ten heads of native caracows weighing 351 to 375 kg with<br />
ages ranging from 3 to 4 years, were used in a grazingdigestibility<br />
trial to determine the voluntary herbage dry<br />
matter intake and digestibility of Themeda pasture by chromic<br />
oxide-acid insoluble ash method. Animals were grazed in<br />
the native pasture during the dry season from February to<br />
May at the Philippine Carabao Research and Development<br />
Center in Carranglan, Nueva Ecija. Laboratory analyses<br />
were conducted at the analytical laboratory of the Central<br />
Luzon State University. All animals before the start of the<br />
actual experiment were subjected to a preliminary trial<br />
lasting for seven (7) days and a collection period of seven<br />
(7) days. Forages were obtained by the plucking method<br />
and feces were sampled daily using the grab technique.<br />
These were pooled and analyzed according to standard<br />
procedure of AOAC (1970). Percent acid insoluble (AIA)<br />
was determined according to Van Keulen and Young (1977).<br />
Voluntary herbage dry matter intake and digestion coefficient<br />
of crude protein, crude fiber, ether extract and nitrogen free<br />
extract (NFE) were calculated according to Reid et al.<br />
(1952). Proximate analysis indicated lower values of<br />
crude protein and ash on forage samples compared to<br />
feces (4.32% vs. 6.21% and 17.74% vs. 28.36%). Acid<br />
insoluble ash contents in forage was 1.089 vs. 0.752<br />
percent in fecal samples. Fecal output per head daily was<br />
calculated as 3.23 kg. Voluntary dry matter intake as<br />
percent of the body weight was 2.22 kg or 97.07 gram per<br />
kilogram metabolic body size of the experimental animals.<br />
Digestion coefficient of crude protein, crude fiber, ether<br />
extract, nitrogen free extract based on percent AIA obtained<br />
were 40.88, 69.61, 61.82 and 62.20 percent, respectively.<br />
Total digestible nutrients calculated was 54.50% and<br />
digestible dry matter was 59.98%. Values obtained in all<br />
the parameters had small variations and patterns tend to<br />
agree closely with results of earlier studies.<br />
Keywords: caracows, chromic oxide-acid insoluble ash<br />
method, themeda range pasture, voluntary intake<br />
*Abstracts of Completed Researches. 1981-1986.<br />
PCRDC-PCARRD, CLSU, Muñoz, Nueva Ecija. Also<br />
in OED-PCC-DA Abstracts: Water Buffalo Researches in<br />
the Philippines. 1981-1995. p. 139-140.<br />
F-60<br />
EFFECTS OF SOAKING RICE STRAW ON GROWTH<br />
PERFORMANCE OF <strong>PHILIPPINE</strong> CARABAOS*<br />
123