Learn Croatian: Djed uzgaja stoku, a mi ju ponekad vidimo pored šume. - Grandfather raises livestock, and we sometimes see it next to the forest.

This is a key exception to the second-position rule. Coordinating conjunctions like a, ali, nego, and ili do not count as the first position in a clause. Therefore, the clitic ju skips a and takes the second position after the first actual word of the second clause, which is mi.

Why use the feminine pronoun ju to mean 'it' here?

In Croatian, pronouns must match the grammatical gender of the noun they replace. 'Livestock' is stoka, which is a feminine noun. Therefore, you must use a feminine accusative clitic (ju or je) to say 'it', even though the English translation uses a gender-neutral pronoun.

Could I use je instead of ju in this sentence?

Yes! Both ju and je are accusative clitics for 'her' or 'it' (feminine). The word je is the standard form, but ju is frequently used as a stylistic choice, or specifically to avoid sounding repetitive if the verb je (meaning 'is') is also in the sentence. Here, both are perfectly fine.

Why translate 'and' as a instead of i in this sentence?