DISCUSSION
Feed intake of sows was the primary limiting factor for the growth performance of their nursing offspring. Insufficient feed intake and poor appetite in sows, especially during the initial phase of lactation, has been demonstrated in a previous study (Kerr & Cameron 1996). The chemical senses of olfaction and taste influence many aspects of behavior, especially selection and consumption of specific food (McLaughlin et al. 1983). Olfaction was important and efficient for communication in mammals while pigs were quite sensitive to food smell (Guiraudie-Capraz et al. 2005; Kittawornrat & Zimmerman 2011). Food intake or lack thereof could be determined by olfactory sensation which provided information before animal ingestion, and this regulatory effect was particularly evident in pigs (McLaughlin et al. 1983). Moreover,
Hellekant and Danilova (1999) stated that pigs had a higher requirement for diet acceptance because they had three to four times the number of taste buds than on the human tongue. Flavors were commonly used to improve diet acceptance and stimulate intake via taste and olfaction. This theory was further confirmed in the present experiment that FMA flavor could improve sow feed intake, and higher feed intake of sows further improved growth performance of piglets, resulting in higher individual and litter weaning weights of piglets. However, maternal body reserve was not sacrificed for these great effects because there was no difference in backfat loss between the FMA and CON groups. Therefore, it is indicated that FMA flavor could effectively decrease milk yield burden of primiparous sows.
DISCUSSIONFeed intake of sows was the primary limiting factor for the growth performance of their nursing offspring. Insufficient feed intake and poor appetite in sows, especially during the initial phase of lactation, has been demonstrated in a previous study (Kerr & Cameron 1996). The chemical senses of olfaction and taste influence many aspects of behavior, especially selection and consumption of specific food (McLaughlin et al. 1983). Olfaction was important and efficient for communication in mammals while pigs were quite sensitive to food smell (Guiraudie-Capraz et al. 2005; Kittawornrat & Zimmerman 2011). Food intake or lack thereof could be determined by olfactory sensation which provided information before animal ingestion, and this regulatory effect was particularly evident in pigs (McLaughlin et al. 1983). Moreover,Hellekant and Danilova (1999) stated that pigs had a higher requirement for diet acceptance because they had three to four times the number of taste buds than on the human tongue. Flavors were commonly used to improve diet acceptance and stimulate intake via taste and olfaction. This theory was further confirmed in the present experiment that FMA flavor could improve sow feed intake, and higher feed intake of sows further improved growth performance of piglets, resulting in higher individual and litter weaning weights of piglets. However, maternal body reserve was not sacrificed for these great effects because there was no difference in backfat loss between the FMA and CON groups. Therefore, it is indicated that FMA flavor could effectively decrease milk yield burden of primiparous sows.
การแปล กรุณารอสักครู่..
