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Number of ovulations in culled Landrace × Yorkshire gilts in the tropics associated with age, body weight and growth rate.

Tummaruk P, Kesdangsakonwut S - J. Vet. Med. Sci. (2015)

Bottom Line: The objective of the present study was to determine the number of ovulations in culled Landrace × Yorkshire (LY) crossbred gilts in the tropics associated with age, body weight and growth rate.In conclusion, both the body weight and growth rate of the gilts were significantly correlated with the number of ovulations.The maximum number of ovulations was found in gilts at a body weight of above 141 kg.

View Article: PubMed Central - PubMed

Affiliation: Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.

ABSTRACT
The objective of the present study was to determine the number of ovulations in culled Landrace × Yorkshire (LY) crossbred gilts in the tropics associated with age, body weight and growth rate. The genital organs from 316 gilts were examined for gross abnormalities, and those with normal cyclic ovaries (n=155, 307 ± 4.1 days of age, 148 ± 1.6 kg body weight) were included in the analyses. Number of ovulations was defined by a count of the corpora lutea (CL) from both ovaries. On average, the number of ovulations in LY gilts was 15.9 ± 0.3 (range 4 to 27). The number of ovulations correlated with the body weight (r=0.31, P<0.001) and growth rate (r=0.20, P=0.015) of the gilts, but not with their age (P>0.05). Gilts with a body weight of 141 to 150 kg (17.0 CL, n=31) ovulated more than those with a body weight ≤130 kg (14.1 CL, P=0.014, n=23). In conclusion, both the body weight and growth rate of the gilts were significantly correlated with the number of ovulations. The maximum number of ovulations was found in gilts at a body weight of above 141 kg.

No MeSH data available.


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Frequency distribution of the number of ovulations in Landrace × Yorkshire pubertalgilts
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fig_001: Frequency distribution of the number of ovulations in Landrace × Yorkshire pubertalgilts

Mentions: The frequency distribution of the number of ovulations is presented in Fig. 1Fig. 1.


Number of ovulations in culled Landrace × Yorkshire gilts in the tropics associated with age, body weight and growth rate.

Tummaruk P, Kesdangsakonwut S - J. Vet. Med. Sci. (2015)

Frequency distribution of the number of ovulations in Landrace × Yorkshire pubertalgilts
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4591150&req=5

fig_001: Frequency distribution of the number of ovulations in Landrace × Yorkshire pubertalgilts
Mentions: The frequency distribution of the number of ovulations is presented in Fig. 1Fig. 1.

Bottom Line: The objective of the present study was to determine the number of ovulations in culled Landrace × Yorkshire (LY) crossbred gilts in the tropics associated with age, body weight and growth rate.In conclusion, both the body weight and growth rate of the gilts were significantly correlated with the number of ovulations.The maximum number of ovulations was found in gilts at a body weight of above 141 kg.

View Article: PubMed Central - PubMed

Affiliation: Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand.

ABSTRACT
The objective of the present study was to determine the number of ovulations in culled Landrace × Yorkshire (LY) crossbred gilts in the tropics associated with age, body weight and growth rate. The genital organs from 316 gilts were examined for gross abnormalities, and those with normal cyclic ovaries (n=155, 307 ± 4.1 days of age, 148 ± 1.6 kg body weight) were included in the analyses. Number of ovulations was defined by a count of the corpora lutea (CL) from both ovaries. On average, the number of ovulations in LY gilts was 15.9 ± 0.3 (range 4 to 27). The number of ovulations correlated with the body weight (r=0.31, P<0.001) and growth rate (r=0.20, P=0.015) of the gilts, but not with their age (P>0.05). Gilts with a body weight of 141 to 150 kg (17.0 CL, n=31) ovulated more than those with a body weight ≤130 kg (14.1 CL, P=0.014, n=23). In conclusion, both the body weight and growth rate of the gilts were significantly correlated with the number of ovulations. The maximum number of ovulations was found in gilts at a body weight of above 141 kg.

No MeSH data available.


Related in: MedlinePlus