Evidence for a Possible Influence of Sire Breed on Reproductive and Progeny Performance in Kiko Meat Goats (Capri hircus)| Chapter 8 | Newest Updates in Agriculture and Veterinary Science Vol. 1

 The main objective concerning this research was to search the effects of different father types (Boer vs. Kiko) on reproductive accomplishment of purebred Kiko dams in addition to growth and health act of their offspring. The study secondhand a total of 19 Kiko does, 11 of which were developed to Kiko bucks and 8 to Boer bucks. Findings demonstrate individual breed mixture prolificacy values of (1.9 vs.1.75 kids/animal) for the Kiko Sired Group and Boer Sired group respectively. There were non-meaningful sire dissimilarities for gestation length (150.38 ± 2.66 vs. 147.64 ± 3.108 days, P = 0.06) for Boer and Kiko sires individually. Weights of Kiko dams assigned to Boer and Kiko sires at development were similar (45.63 ± 10.17 vs. 42.39 ± 6.91, kg, P = 0.41). At detaching, dams breed to Boer and Kiko sire weighed the same (52.77 ± 14.64 and 42.76 ± 7.13, kg, P = 0.10). Litter diameter at birth and at detaching did not clash among father breed (1.75 ± 0.46, P= 0.37 vs. 1.90 ± 0.30 and 1.50 ± 0.53 vs. 1.75 ± 0.46, P = 0.33) respectively. Boers sired kids were considerably heavier at beginning but not at weaning (3.41 ± 0.48 vs. 2.78 ± 0.53 kg, P = 0.001 and 13.82 ± 2.78 vs. 12.43 ± 3.47 kg, P = 0.26). Non- meaningful differences were observed for ADG (0.15 ± 0.03 vs. 0.13 ± 0.03 kg/d) for Boer and Kiko produce kids respectively. Pre-detaching mortality rates were 69% and 73% for Kiko and Boer produce kids, respectively. Overall, there were no compatible differences in generative and progeny accomplishment traits betwixt the main sire types used in this place project. Because variation inside sire type is higher in amount variation between father types, genetic choice should apply oneself determining the best sires inside each breed type.

Author(s) Details:

Chukwuemeka Okere,
Department of Agricultural and Environmental Sciences, College of Agricultural, Environmental & Natural Sciences, Tuskegee University, Tuskegee, AL 36088, U.S.A.

Olga Bolden-Tiller,
Department of Agricultural and Environmental Sciences, College of Agricultural, Environmental & Natural Sciences, Tuskegee University, Tuskegee, AL 36088, U.S.A.

Henry J. Henderson III,
Department of Agricultural and Environmental Sciences, College of Agricultural, Environmental & Natural Sciences, Tuskegee University, Tuskegee, AL 36088, U.S.A.

Please see the link here: https://stm.bookpi.org/NUAVS-V1/article/view/8561

External Eostrus Signs, Hormonal Profile and PreWeaning Performance of FI Piglets of Pigs Fed Soya Bean Meal Replaced Blood Meal Diets | Chapter 9 | Current Research in Agriculture and Veterinary Sciences Vol.1

 

The focus of this study was to evaluate the effects of feeding pigs soya bean meal (SBM) replaced
blood meal (BM) diets on external eostrus signs, hormonal profile and pre-weaning performance of FI
piglets. Blood was collected from apparently healthy cattle at slaughter; boiled, sun dried and used to
formulate starter and finisher diets (T1, T2, T3 and T4). The diets contained 0.00 (T1, control), 50.00
(T2), 75.00 (T3) and 100.00% (T4) BM as replacement for SBM, respectively. Twenty four Landrace ×
Large White crossbred pigs with a mean weight of 12.24 kg and age range of 6.0 to 6.5 weeks were
randomly allotted to the four treatment groups. The pigs were maintained on their group specific diet
at 5.0% average body weight as ration until they were mated. At 6.5 months of age, the gilts were
observed two times daily for symptoms of eostrus. Following the manifestation of eostrus signs,
scoring for the vulva changes was carried out and values obtained were compared between treatment
groups at first, second and third eostrus cycles. On second day of forth eostrus cycle, one gilt from
each group (n=16) was randomly selected and bled every 30 min for 6 hours. The sera obtained was
used to determine hormonal profile using ELISA technique. After blood collection, the twenty four pigs
were crossed and fed 20.20, 2.00 and 2.50 kg feed per day at first, second and third stages of
gestation and additional 0.20 kg feed per piglet farrowed at lactation. Litter size, daily weight gain,
weaning size and weight of the FI offspring were determined. Results showed that age at puberty,
duration of standing reflex, intensity of reddening, and swelling of the vulva and eostrus cycle length
showed no significant (p > 0.05) difference to the control. Whereas duration of standing reflex
increased, intensity and duration of reddening and swelling of vulva rather decreased with eostrus
cycle number in all the groups. The hormonal assay showed that estradiol-17β levels of groups T2, T3
and T4 were significantly (p < 0.05) higher than the control. The BM inclusion had no significant (p >
0.05) effect on Luteinizing and Follicle Stimulating Hormonal profiles of the gilts, but pulsatile release
at the 3rd and 6th hours was evident. There was no significant (p > 0.05) difference in performance
indices of the F1piglets, although those fed 75% BM diet tended to have performed better than others.
It was concluded that inclusion of locally processed BM in pigs' diets under tropical humid conditions
is safe and does not interfere negatively with some key reproductive parameters of primigravid
crossbred pigs and pre-weaning performance of their F1 offspring.

Author (s) Details

Abonyi, Festus Otaka
Department of Animal Health and Production, University of Nigeria, Nsukka, Nigeria.

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