4. SEGMENT INFORMATION

The Company has two reportable segments: Food Safety and Animal Safety. The Food Safety segment is primarily engaged in the development, production and marketing of diagnostic test kits, dehydrated culture media and related products used by food producers and processors to detect harmful natural toxins, foodborne bacteria, allergens and levels of general sanitation. The Animal Safety segment is primarily engaged in the development, production and marketing of products dedicated to animal safety, including a complete line of consumable products marketed to veterinarians and animal health product distributors; this segment also provides genomic identification and related interpretive bioinformatic services. Additionally, the Animal Safety segment produces and markets rodenticides, disinfectants and insecticides to assist in the control of rodents, insects and disease in and around agricultural, food production and other facilities.

Neogen’s international operations in the United Kingdom, Mexico, Brazil, China and India originally focused on the Company’s Food Safety products, and each of these units reports through the Food Safety segment. In recent years, these operations have expanded to offer the Company’s complete line of products and services, including those usually associated with the Animal Safety segment such as cleaners, disinfectants, rodenticides, insecticides, veterinary instruments and genomics services. These additional products and services are managed and directed by existing management, and are reported through the Food Safety segment.

The accounting policies of each of the segments are the same as those described in Note 1.

Segment information follows:


					Corporate and
	Food		Animal		Eliminations
	Safety		Safety		(1)			Total
	(in thousands)
As of and for the three months ended August 31, 2017
Product revenues to external customers	$	42,282	$	38,285	$	—		$	80,567
Service revenues to external customers		4,452		10,237		—			14,689

Total revenues to external customers		46,734		48,522		—			95,256
Operating income (loss)		8,777		8,669		(1,022	)		16,424
Total assets		194,857		209,404		143,073			547,334
As of and for the three months ended August 31, 2016
Product revenues to external customers	$	35,693	$	36,552	$	—		$	72,245
Service revenues to external customers		3,464		7,936		—			11,400

Total revenues to external customers		39,157		44,488		—			83,645
Operating income (loss)		7,999		7,780		(1,037	)		14,742
Total assets		143,990		210,176		114,449			468,615

(1)	Includes corporate assets, consisting principally of cash and cash equivalents, marketable securities, current and deferred tax accounts and overhead expenses not allocated to specific business segments. Also includes the elimination of intersegment transactions.