Influence of Rendered Fat in the Diet of Large White Yorkshire sows on Litter Performance
By: Thiruveni S.
Contributor(s): Viswanathan T V (Guide).
Material type:
BookPublisher: Mannuthy Department of Animal Nutrition, College of Veterinary and Animal Sciences 2003DDC classification: 636.084 Online resources: Click here to access online Dissertation note: MVSc Abstract: A study was conducted to assess the influence of rendered fat in the
diet of Large White Yorkshire sows on their litter performance. Thirty-two
Large White Yorkshire gestating sows at late gestation (100 days of gestation)
formed the experimental animals. Four groups with eight replicates each were
maintained under four experimental diets, viz., Tl (standard ration - containing
18% crude protein and 3300 kcal DE/kg), T2 (standard ration + 5 per cent
rendered animal fat), T3 (standard ration + lO per cent rendered animal fat) and
T4 (standard ration + 15 per cent rendered animal fat) from late gestation (100
days of gestation) to weaning (56 days of lactation).
There were no significant differences (P>0.05) observed between the
four dietary treatments for the parameters observed such as litter size and piglet
weight at birth and at weaning, average daily gain of piglets, body weight loss
of sows during lacta~ion and piglet mortality. But there was a trend for
reduction in lactational body weight loss of sows fed T2, T3 and T 4
experimental diets.
The digestibility coefficients of nutrients such as ether extract
(P<O.O 1) and nitrogen free extract (P<0.05) were found to get improved, that of
crude fibre was found to be decreased (P<O.OOl) and that of dry matter and
crude protein were not affected (P>0.05) with the increasing energy density of
the experimental diets.
ii
The cost benefit ratios showed an increasing trend in the economics of
gain from the sows fed rendered animal fat added gestation and lactation diets
than that of the control sows.
The above results indicate that the rendered animal fat, as an energy
source for Large White Yorkshire sows, can be added extra at 15 per cent level
of the standard ration (containing 3300 kcal DE/kg and 18% crude protein)
during late gestation and lactation, to improve the performance of sows and the
litter and to have a better economics of gain.
| Item type | Current location | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|
Theses
|
KAU Central Library, Thrissur Theses | 636.084 THI/IN (Browse shelf) | Available | 172114 |
MVSc
A study was conducted to assess the influence of rendered fat in the
diet of Large White Yorkshire sows on their litter performance. Thirty-two
Large White Yorkshire gestating sows at late gestation (100 days of gestation)
formed the experimental animals. Four groups with eight replicates each were
maintained under four experimental diets, viz., Tl (standard ration - containing
18% crude protein and 3300 kcal DE/kg), T2 (standard ration + 5 per cent
rendered animal fat), T3 (standard ration + lO per cent rendered animal fat) and
T4 (standard ration + 15 per cent rendered animal fat) from late gestation (100
days of gestation) to weaning (56 days of lactation).
There were no significant differences (P>0.05) observed between the
four dietary treatments for the parameters observed such as litter size and piglet
weight at birth and at weaning, average daily gain of piglets, body weight loss
of sows during lacta~ion and piglet mortality. But there was a trend for
reduction in lactational body weight loss of sows fed T2, T3 and T 4
experimental diets.
The digestibility coefficients of nutrients such as ether extract
(P
the experimental diets.
ii
The cost benefit ratios showed an increasing trend in the economics of
gain from the sows fed rendered animal fat added gestation and lactation diets
than that of the control sows.
The above results indicate that the rendered animal fat, as an energy
source for Large White Yorkshire sows, can be added extra at 15 per cent level
of the standard ration (containing 3300 kcal DE/kg and 18% crude protein)
during late gestation and lactation, to improve the performance of sows and the
litter and to have a better economics of gain.
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