Animal Husbandry WAEC

Climate Effects On Farm Animals

Muhtasari

Drive from Jos down to Yola in February and the change is obvious to any traveller: cool, dry harmattan mornings give way to a heat that makes the tarmac shimmer by noon. Farm animals feel that same swing far more sharply than we do, because their productivity, not just their comfort, rides on it. A dairy cow that milks well in a Jos morning may go off her feed by afternoon; broilers packed into a poorly ventilated shed in Lagos in April can lose a week of growth in three hot days.

In this lesson you will learn the climatic factors a stockman must watch, temperature, humidity, rainfall, wind and solar radiation, and the single idea that ties them together: the thermoneutral zone, the comfortable range in which an animal spends the least energy regulating its own body temperature and performs at its best. You will see exactly what goes wrong on either side of that zone, heat stress and cold stress, and why an indigenous White Fulani cow shrugs off a Kaduna afternoon that would knock the appetite off an imported dairy breed.

Malengo

  1. State the climatic factors that affect farm animals
  2. Explain the effect of temperature on farm animal production
  3. Explain the effect of humidity on farm animal production
  4. Explain the effect of climate on feed intake and growth
  5. Suggest ways of reducing the effect of adverse climate on farm animals

Maelezo ya Somo

Two farmers buy identical batches of exotic layers, one in Jos, one in Owerri. The Jos flock lays above target; the Owerri flock is chronically under, eating less and panting, though feed and schedules match. The difference is climate, and a stockman who understands its effect can manage around it.

Tathmini ya Somo

Hongera kwa kukamilisha somo la Climate Effects On Farm Animals. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.

Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.

Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.

  1. The range of ambient temperature within which a farm animal spends the least energy on temperature regulation and performs best is called the: A. Critical temperature B. Thermoneutral zone C. Comfort index D. Humidity zone Answer: B
  2. Which of the following is NOT one of the climatic factors that affect farm animal production? A. Humidity B. Solar radiation C. Soil pH D. Wind Answer: C
  3. High humidity makes hot weather harder for an animal to bear mainly because it: A. Increases the animal's appetite B. Blocks evaporative cooling C. Lowers the air temperature D. Increases wind speed Answer: B
  4. Which of these is a typical sign of heat stress in farm animals? A. Shivering B. Increased feed intake C. Panting and reduced feed intake D. Thickened winter coat Answer: C
  5. Compared with imported exotic breeds, indigenous Nigerian breeds such as the White Fulani and Yankasa are generally: A. Lower yielding but more heat-tolerant B. Higher yielding and more heat-tolerant C. Equally heat-tolerant but lower yielding D. Unaffected by climate Answer: A