Thermal adaptability of large white pigs in the tropical environment

1983 ◽  
Vol 27 (3) ◽  
pp. 249-258 ◽  
Author(s):  
T. I. Dede
Keyword(s):  
Tropical Environment ◽  
Large White ◽  
Thermal Adaptability

Determination of the optimum crude protein requirement of pigs in a tropical environment

1972 ◽  
Vol 14 (1) ◽  
pp. 57-67 ◽  
Author(s):  
G. M. Babatunde ◽  
M. J. Olomu ◽  
V. A. Oyenuga
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nitrogen Retention ◽  
Live Weight ◽  
Growing Pigs ◽  
Tropical Environment ◽  
Protein Requirement ◽  
Large White ◽  
Protein Requirements ◽  
Protein Levels

SUMMARYFeeding trials were carried out at different times of the year to determine the optimum crude protein requirements of weaner and growing pigs, using principally the locally available ingredients. The animals used were 96 weaners and 113 growing pigs of the Large White and Landrace breeds of average initial weights of about 9 kg and 41 kg respectively. Test diets contained protein levels ranging from 12% to 24% on a dry-matter basis, and the pigs were mostly group-fed ad libitum except for one trial. Average daily gains, efficiency of feed utilization, apparent nitrogen retention and digestibility, and feed cost per kg of body gain were measured. In a humid tropical environment, such as Ibadan, the optimum crude protein requirement for weaner pigs from 9 kg to 34 kg live weight is between 22 % and 24 % of dry matter, while that for the fattening pigs from 41 kg to 82 kg live weight is between 18% and 21% of dry matter.

THE VALUE OF CARBADOX (METHYL 3-2 QUINOXALINY – LMETHYLENE) CARBAZATE N1, N4DIOXIDE) IN THE DIETS OF WEANER PIGS IN THE HUMID TROPICAL ENVIRONMENT

2021 ◽  
Vol 4 (2) ◽  
pp. 85-91
Author(s):  
G. M. Babatunde ◽  
B. I. Fetuga ◽  
F. O. Amubode
Keyword(s):  
Crude Protein ◽  
Growth Promotion ◽  
Nitrogen Retention ◽  
Basal Diet ◽  
Nutrient Utilization ◽  
Tropical Environment ◽  
Feed Consumption ◽  
Large White ◽  
The Difference ◽  
Weaner Pigs

Two experiments were carried out with 108 weaner pigs of the large White and Large X Landrace breeds, to determine the effects of feeding graded levels of Carbadox (Mecadox), a relatively new synthetic feed medicant with bactericidal and growth promotion properties, to weaner pigs on their levels of performance and their nutrient utilization abilities in the hot humid tropical environment. Two management conditions, a clean and an untidy conditions were tried. The basal diet was a 19% crude protein diet to which were added 0.0, 10.0, 25.0 and 50.0ppm levels of Carbadox to give a total of our diets which were fed either individually or in groups to the piglets within each of the four treatment group. Digestibility trial was carried out in the middle of experiment 1 only. In both experiments, pigs on the 50 ppm diet grew at a faster rate than the pigs on the other diets, but significantly faster in experiment 2 only. Feed consumption was slightly stimulated by the presence of Carbadox though not significantly, while the efficiency of feed utilization was significantly improved in experiment 2, being best for the 50 ppm diet and worst for the control Carbadox diet. The difference in the nutrients digestion coefficients and nitrogen retention, all of which were close for all treatments, with no consistent trends

Association between leptin receptor gene polymorphism and quality of both meat and back fat in large white pigs of ukrainian breeding

2016 ◽  
Vol 3 (2) ◽  
pp. 42-48
Author(s):  
V. Balatsky ◽  
I. Bankovska ◽  
A. Saienko
Keyword(s):  
Gene Polymorphism ◽  
Leptin Receptor ◽  
Receptor Gene ◽  
Intramuscular Fat ◽  
Large White ◽  
Pig Breeds ◽  
Lepr Gene ◽  
Large White Breed ◽  
White Breed

Leptin receptor is one of the components of the system of regulating energy homeostasis of the organism. Leptin receptor gene (LEPR) polymorphism is associated with pig carcass index of the content of intramus- cular fat in its valuable parts, which is particularly important when assessing the quality of their carcasses for processing. Intramuscular fat is associated with meat fl avor characteristics and partly determines its tenderness, juiciness, and other parameters. Aim. To analyze LEPR gene (SNP NM001024587.1, p. 1987 C > T) polymor- phism in populations of various pig breeds and to establish its relationship with the quality of both meat and fat of pigs of Large White breed of Ukrainian breeding. Methods. Genetic-population analysis of nine pig breeds, associative analysis on the search connection of LEPR gene polymorphism with quality of both meat and fat of pigs of Large White breed of Ukrainian breeding. LEPR locus genotyping was performed by High Resolution Melting (HRM). Results. All the studied breeds are characterized by polymorphism of the leptin receptor gene (SNP NM001024587.1, p. 1987 C > T), signifi cant breed specifi city in the distribution of frequencies of alleles was established. Statistically confi rmed effect (p < 0.05) of genotypes LEPR on the content of intramuscular fat, total dry matter and moisture in the meat, as well as the moisture content in the back fat of pigs of Ukrainian Large White breed was revealed. Higher content of intramuscular fat was found in the animals with genotype TT, while a smaller amount of intramuscular fat and more moisture in fat was revealed in heterozygotes. Conclusions. Genetic marker LEPR SNP NM001024587.1, p. 1987 C > T can be used in the marker-assisted selection to predict and improve the performance quality of the meat of pigs of Large White breed of the Ukrainian breeding. These results suggest that porcine leptin receptor gene controls the quality of fat comp- lex – inside muscles and in the dorsal part of the carcass.

GROWTH AND RATIO OF MUSCLE MORPHOFUCTIONAL TYPES IN LARGE WHITE SOWS

2018 ◽  
pp. 157-171
Author(s):  
V.P. PANOV ◽  
◽  
V.YE. NIKITCHENKO ◽  
D.V. NIKITCHENKO ◽  
A.E. SEMAK ◽  
...  
Keyword(s):  
Large White
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