101Leafy researched the games.
Apceros

Hunted for their meat, which is buried under a thick, armored hide. Aggressive compared to the Aptonoth, hunting them can be a challenge. Apceros eggs are a valuable Guild commodity.
A Herbivore that lives mainly in places like the Volcano and the Desert. It moves very slowly, but it also has an aggressive side and will relentlessly chase a hunter who comes near. Once slain it can be carved not only for Raw Meat but also for a valuable Med Monster Bone, which makes it worth hunting.
Our translation of モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 182.
Guide book figures for Apceros
Health
| Quests | Health |
|---|---|
| Easy, Village Low Rank | 165 |
| Gathering Hall Low Rank | 223 |
| Village and Hall High Rank | 226 |
| G-Level | 300 |
Status ailments
| Poison | Works |
|---|---|
| Paralysis | Works |
| Sleep | Works |
| Stun | Immune |
Hitzones
| Part | Cut | Impact | Shot | Fire | Water | Thunder | Ice | Dragon | Stun |
|---|---|---|---|---|---|---|---|---|---|
| Head | 80 | 100 | 90 | 40 | 20 | 40 | 30 | 10 | 0 |
| Body | 70 | 100 | 70 | 40 | 20 | 40 | 30 | 10 | 0 |
Higher numbers take more damage. Stun is how much impact hits on that part add toward a stun.
Carves and rewards
Carves: Body 2.
Easy
| Item | Chance |
|---|---|
| Raw Meat | 48% |
| Sm Monster Bone | 48% |
| Med Monster Bone | 4% |
Low Rank
| Item | Chance |
|---|---|
| Raw Meat | 47% |
| Sm Monster Bone | 45% |
| Med Monster Bone | 8% |
High Rank
| Item | Chance |
|---|---|
| Raw Meat | 43% |
| Sm Monster Bone | 40% |
| Med Monster Bone | 15% |
| Monster Bone+ | 2% |
G-Level
| Item | Chance |
|---|---|
| Raw Meat | 43% |
| Sm Monster Bone | 40% |
| Med Monster Bone | 15% |
| Hrd Monster Bone | 2% |
Figures from モンスターハンターポータブル 2nd G 公式ガイドブック (Enterbrain, 2008), page 182.