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Signs of heat in pigs include;RestlessnessFrequent urinationSwelling and reddening of vulvaFrequent mounting othersRespond positively to riding
Factors that can affect digestibility of a feedstuff in livestock are;Chemical composition of the feed e.g % of lignin or cellulose will influence digestibility.The quantity of feed already present in the digestive system of an animal.The species of the animal eg the digestibility of grass is higher in sheep than in pigs.The ratio of energy to protein will affect digestibility. The higher the ratio the lower the digestibility.
Signs of farrowing are;RestlessnessEnlargement of the vulvaMuscles on each side of the tail slackenLoss of appetiteUdder and the teat become enlargedSow collects bedding materials
Signs of parturition observed on the vulva are;Enlarged/swollen vulvaClear mucus discharge
Disadvantages of inbreeding in livestock include;Loss of hybrid vigour/reduced performanceDecline in fertilityReduced productionHigh rate of pre-natal mortalityWeak inferior off springs