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Effects of frequency of semen collection on reproductive performance of male turkeys fed low protein diets during the breeder period



Effects of frequency of semen collection on reproductive performance of male turkeys fed low protein diets during the breeder period



Poultry Science 61(9): 1866-1872



Eight-week-old Large White male turkeys were fed ad libitum a 17% protein corn-soybean meal diet until 28 weeks old. At 28 weeks the average body weight was 14.2 kg and 75% of the males were producing semen. The turkeys were fed diets containing 8, 11, 13, or 17% protein from 28 to 53 weeks. At 53 weeks the average body weights were 17.6, 18.9, 19.0, and 19.2 kg for birds fed 8, 11, 13 and 17% protein, respectively. The turkeys consumed less of the 8 and 11% protein diets: .88 and .92 of the amount of the 17% protein diet consumed during weeks 28 to 53. Semen was collected one time (1x) (Tuesday) and 3x (Monday-Wednesday-Friday) per week from 20 turkeys in each dietary treatment. Semen volume averaged .29 and .21 ml per ejaculate for the 1x/week and 3x/week semen collections, respectively, with no effect of dietary treatment. Sperm concentration (8.28 x 10(9) sperm/ml) was consistent in all groups throughout the experiment. Fertility of eggs set and hatchability of fertile eggs was high (+91%) for hens inseminated with semen collected 1x/week from males fed 8, 11, 13, and 17% protein diets, respectively. However, fertility of semen from the 3x/week semen collection was 79% after the 1st insemination and increased to 92% after the 2nd weekly insemination. Overall fertility for the 10 weeks was 94 and 92% for the 1x/week and 3x/week semen collections, respectively.

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Accession: 001071298

Download citation: RISBibTeXText

PMID: 7134140

DOI: 10.3382/ps.0611866


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