Throughout the hot summer months, those who care for dairy calves concern themselves with issues such as flies, excess heat, ventilation and fluid intake. Now that winter weather has arrived, calf care requires a somewhat different set of standards. While some calf care parameters are the same, cold weather care starts with ensuring that calves are warm and dry.
Every animal has a thermo neutral zone, or TNZ. Technically speaking, TNZ is the range of ambient temperature without regulatory changes in metabolic heat production or evaporative heat loss. More simply, it’s the environment in which the calf doesn’t lose energy trying to stay warm or cool. [Read more…]