Depois da adoção no abrigo, vamos vacinar e castrar o filhote.

They are contractions, which are extremely common in Portuguese:

• da = de + a
• no = em + o

So:

• depois da adoção literally comes from depois de a adoção
• no abrigo literally comes from em o abrigo

In natural Portuguese, these contractions are normally required:

• de + a = da
• de + o = do
• em + a = na
• em + o = no

This is one of the first things English speakers notice, because English does not do this in the same way.

Because depois normally needs the preposition de before a noun phrase.

So you say:

• depois da adoção = after the adoption
• depois do almoço = after lunch
• depois da aula = after class

Without de, it sounds ungrammatical.

A useful pattern is:

• depois de + noun
• depois de + infinitive

Examples:

• depois da adoção = after the adoption
• depois de adotar = after adopting

Portuguese often uses definite articles where English does not.

Here, a adoção refers to a specific adoption event, so depois da adoção sounds very natural.

Compare:

• depois da adoção = after the adoption / after adoption
• depois da cirurgia = after the surgery / after surgery

English often drops the in these contexts, but Portuguese usually keeps the article.

Abrigo here means animal shelter.

So adoção no abrigo means the adoption that takes place at the shelter.

Depending on context, abrigo can also mean:

• shelter
• refuge
• place of protection

But in animal-related contexts, it very often means a rescue shelter or animal shelter.

Because in Brazilian Portuguese, ir + infinitive is a very common way to talk about the future.

So:

• vamos vacinar e castrar = we are going to vaccinate and neuter/spay
• literally: we go to vaccinate and neuter/spay

This is often more natural in everyday speech than the simple future:

• vacinaremos e castraremos o filhote

That future form is grammatically correct, but it can sound more formal, written, or less conversational.

For spoken Brazilian Portuguese, vamos + infinitive is extremely common.

Because they come after vamos, in the structure:

• vamos + infinitive

This works like to be going to + verb in English.

Examples:

• vamos vacinar = we’re going to vaccinate
• vamos castrar = we’re going to neuter/spay
• vamos adotar = we’re going to adopt

So the infinitive is required here.

In this context, castrar means to spay or neuter an animal.

It is a standard and common verb in Portuguese when talking about pets and animal care.

Depending on context, people may also use:

• esterilizar = to sterilize

But castrar is very common and natural for animals.

For learners, the important point is that this is normal veterinary/pet-care vocabulary, not unusually harsh wording in Portuguese.

Not necessarily. Filhote means baby animal, young animal, or offspring, depending on context.

It can refer to:

• a puppy
• a kitten
• a cub
• another young animal

So o filhote is more general than o cachorro or o gatinho.

If the meaning shown to the learner is puppy, that may come from the broader context, but the word itself is not limited to dogs.

Because o filhote is the shared object of both verbs.

So the sentence means:

• vaccinate the young animal
• and neuter/spay the young animal

Portuguese does not need to repeat the object if both verbs clearly apply to the same noun.

You could expand it for clarity, but it would sound heavier:

• vamos vacinar o filhote e castrar o filhote

That is grammatical, but less natural unless you want special emphasis.

Yes. Portuguese word order is fairly flexible here.

For example, this is also possible:

• Vamos vacinar e castrar o filhote depois da adoção no abrigo.

That still sounds natural.

The original version puts the time/context first:

• Depois da adoção no abrigo, vamos vacinar e castrar o filhote.

This can sound a bit more organized or narrative, like setting the scene first.

So both are fine; the difference is mostly in emphasis and flow.

Most naturally, it means the adoption happens at the shelter.

• adoção no abrigo = adoption at the shelter

If you wanted to emphasize origin, Portuguese might use something like:

• adoção de um animal do abrigo = adoption of an animal from the shelter

So in this sentence, no abrigo is most naturally understood as the location of the adoption.

Adoção is pronounced roughly like ah-doh-SOWN, with a nasal ending.

The ending -ção is very common in Portuguese and often corresponds to English -tion:

• adoção = adoption
• vacinação = vaccination
• castração = castration
• informação = information

A few useful things to notice:

• the stress falls on the last syllable: a-do-ÇÃO
• ção has a nasal sound, which English speakers often need practice with

This ending is one of the most recognizable patterns in Portuguese vocabulary.

Because Portuguese often omits subject pronouns when the verb form already makes the subject clear.

Here, vamos already tells you the subject is we.

So:

• vamos vacinar = we are going to vaccinate

You could say:

• nós vamos vacinar e castrar o filhote

But nós is usually unnecessary unless you want emphasis, contrast, or extra clarity.

This is very normal in Portuguese.