Exhibit 12.1
Charles River Laboratories International, Inc
Ratio of Earnings to Fixed Charges
| 2017 | 2016 | 2015 | |
| Earnings/(Loss) | |||
| (a) Consolidated income/(loss) from continuing operations before income taxes, and noncontrolling interests | 296,955 | 222,921 | 195,428 |
| (b) plus fixed charges | 38,580 | 34,980 | 23,296 |
| (c) plus amortization of capitalized interest | 640 | 639 | 622 |
| (d) plus distributed income of equity investees | 10,100 | 6,302 | 7,329 |
| (e) plus pre-tax losses of equity investees where charges from guarantees are included in fixed charges | - | - | - |
| (f) minus income/(loss) from equity method affiliates | 22,867 | 10,284 | 3,823 |
| (g) minus Capitalized Interest | 36 | 4 | 424 |
| (h) minus Preference security dividend requirements of consolidated subsidiaries | - | - | - |
| (i) minus noncontrolling interest in pre-tax income of subsidiaries that have not incurred fixed charges | - | - | - |
| Total Earnings | 323,372 | 254,554 | 222,428 |
| Fixed Charges | |||
| Interest Expensed and Capitalized | 27,950 | 25,869 | 13,837 |
| Amortization of DFC & debt discount | 1,863 | 1,843 | 1,660 |
| Interest within Rent Expense: Estim at 1/3 of rental expense | 8,767 | 7,267 | 7,800 |
| Total Fixed Charges | 38,580 | 34,980 | 23,296 |
| Ratio of Earnings to Fixed Charges | 8.38 | 7.28 | 9.55 |