Cow protection means feeding the brahminical culture, which leads towards God consciousness.....

S.B. 1/19/3

Where wealth and strength are not engaged in the advancement of brahminical culture, God consciousness and cow protection, the state and home are surely doomed by Providence.

Srimad Bhagavatam Canto One Chapter Nineteen Verse Three  S.B. 1/19/3

                   adyaiva rajyam balam rddha-kosam
                     prakopita-brahma-kulanalo me
                  dahatv abhadrasya punar na me 'bhut
                   papiyasi dhir dvija-deva-gobhyah

adya--this day; eva--on the very; rajyam--kingdom; balam rddha--strength and riches; kosam--treasury; prakopita--ignited by; brahma-kula--by the brahmana community; analah--fire; me dahatu--let it burn me; abhadrasya--inauspiciousness; punah--again; na--not; me--unto me; abhut--may occur; papiyasi--sinful; dhih--intelligence; dvija--brahmanas; deva--the Supreme Lord; gobhyah--and the cows.

                              TRANSLATION

     I am uncivilized and sinful due to my neglect of brahminical culture, God consciousness and cow protection. Therefore I wish that my kingdom, strength and riches burn up immediately by the fire of the brahmana's wrath so that in the future I may not be guided by such inauspicious attitudes.

                                PURPORT

     Progressive human civilization is based on brahminical culture, God consciousness and protection of cows. All economic development of the state by trade, commerce, agriculture and industries must be fully utilized in relation to the above principles, otherwise all so-called economic development becomes a source of degradation. Cow protection means feeding the brahminical culture, which leads towards God consciousness, and thus perfection of human civilization is achieved. The age of Kali aims at killing the higher principles of life, and although Maharaja Pariksit strongly resisted the domination of the personality of Kali within the world, the influence of the age of Kali came at an opportune moment, and even a strong king like Maharaja Pariksit was induced to disregard the brahminical culture due to a slight provocation of hunger and thirst. Maharaja Pariksit lamented the accidental incident, and he desired that all his kingdom, strength and accumulation of wealth would be burned up for not being engaged in brahminical culture, etc.
     Where wealth and strength are not engaged in the advancement of brahminical culture, God consciousness and cow protection, the state and home are surely doomed by Providence. If we want peace and prosperity in the world, we should take lessons from this verse; every state and every home must endeavor to advance the cause of brahminical culture for self-purification, God consciousness for self-realization and cow protection for getting sufficient milk and the best food to continue a perfect civilization.