Thumbnail Image

Theses

Browse

20002
Reset filters
Subject: Livestock Production and Management × End date: 2000 × Start date: 2000 × Type: Thesis ×
Reset filters

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    ThesisItemOpen Access
    Performance of three introduced breeds of pigs in Kerala
    (Department of Livestock Production Management, College of Veterinary and Animal Sciences, Mannuthy, 2000) Dinesh, M T; KAU; Thomas, C K
    A study was conducted to find out the production performance and adaptability of three newly imported breeds of "pigs viz. Duroc, Large White Yorkshire and Landrace and to compare it with that of existing Large White Yorkshire pigs of Kerala. Thirty animals from each group were selected for the study. All the animals were fed with same type of feed through out the experimental period. Body weight and body measurements were recorded at fortnighdy intervals. The quantity of feed consumed by each group was also recorded. Rectal temperature was measured at weekly intervals during the noon hours. Animals were also observed during noon and feeding hours to study the adaptive behavioral manifestations. The results revealed that the body weight of the newly imported pigs were superior to that of Mannuthy Large White Yorkshire pigs. The body weight averaged 64.50+6.63, 62.75±5.16, 82.031±8.50 and 39.89±7.23 between 4.5 to 5 months of age and 171.25+7.69, 173.66+7.38, 169.14±9,98 and 124.66±11.64 between 11 and 11.5 months of age. The newly imported pigs were ready for slaughter at 6.5 to 7.0 months of age while the Mannuthy Large White Yorkshire pigs attained the 100-kg target during 9.5 to 10.months of age. The average daily gain calculated for the Mannuthy Large White Yorkshire pigs was also lower than the three newly imported groups. Average daily gain up to 100 kg body weight averaged 630, 673, 672 and 453 g for Duroc, Large White Yorkshire Landrace and Mannuthy Large White Yorkshire pigs. Feed conversion ratio up to 100 kg body weight averaged 4.03, 3.95, 3.72 and 4.63 for the above four breeds. Results of body measurements show that the Large White Yorkshire pigs maintained at Mannuthy farm was the smallest animal in all weight, groups. Landrace pigs were the longest (120.47 cm) and duroc pigs were the tallest (87.63) at the end of the experimental period. Data regarding the rectal temperature revealed that the temperature recorded for the Mannuthy pigs was slightly higher than the three newly imported groups. Among the four breeds the newly imported Large White Yorkshire pigs were the most aggressive animal at the time of feeding while Duroc pigs were comparatively quiet at the time of feeding. The present study revealed that the overall production performance of Large White Yorkshire pigs, ancestors of which were imported to kerala about 20 years ago, is inferior to that of newly imported Duroc, Large White Yorkshire and Landrace pigs. But the production performance of Mannuthy, Large White Yorkshire pigs was found, to superior to that of many other exotic pigs maintained in other parts of India.
  • Thumbnail Image
    ThesisItemOpen Access
    Developement of an integrated farming system centered on pigs
    (Department of Livestock Production Management, College of Veterinary and Animal Sciences, Mannuthy, 2000) Suraj, P T; KAU; Joseph Mathew
    Efforts were taken to develop a model integrated farming system (IFS) centred on pigs at Centre for Pig Production and Research, Mannuthy. This animal-fish-vegetable IFS consisted of three groups of pigs viz. Large White Yorkshire (L WY), Crossbreds (CB) (Large White Yorkshire x Desi) and Desi, three tanks for fish rearing and three sets of vegetable plots with four varieties of vegetable crops. Different treatments were applied to each unit of fish feeding as pig manure only, pig manure and feed and feed only. In the vegetable plots different treatments were applied in manuring as pig manure only pig manure and chemical fertilizer and chemical fertilizer only. A clear breed difference was noticed between LWY and Desi with respect to traits such as feed intake, body weight, body measurements, average daily body weight gain (ADG) and' feed conversion efficiency (FCE). But there was no significant difference (Pbetween L WY and CB in ADG and FCE. When pig manure was used as fish feed the water quality was deteriorated but body weight, total yield and survival rate of fish were higher. The highest yield of vegetable obtained from the different crops depend on the variety of crop and manure or combination of manure used. The economics of production indicated that rearing pigs entirely on concentrate feed is uneconomical. But the integration of fish and vegetable to the pig production could improve the productivity of such systems with the improvement in overall economic efficiency. The result also indicated that a combination of LWY, fish utilizing the manure and vegetable cultivation by supplying the nitrogen requirement through pig manure is the most economical integration.