The effect of genotype and birth type on gestation length and linear body measurements of crossbred Nigerian goats

Linear dimensions of WAD lambs and kids were compared under traditional management system from birth to weaning age of 3 months. At hirth, male and female lambs were comparable to their kid counter parts in body length (BL) and Height-at-withers (HW) but inferior to kids in Heart Girth (HG),, Mean HG for lambs at birth was 23.09cm while that of kid was 26.62cm. At 3 months, mean HG for lambs was 49.40cm while that of kids was 46.24cm. Birth type had significant effects (P<0.05) on linear dimensions at birth and weaning. For both species, linear dimensions increased with increase in birth and weaning weights. The superiority of WAD lambs is body dimensions Compared to WAD kids is indicative of better frame size in lambs at post weaning age.

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Many-sided performance testing of Finnsheep rams

Agricultural and Food Science ◽

10.23986/afsci.72302 ◽

1988 ◽

Vol 60 (6) ◽

pp. 523-529

Author(s):

M. -L. Puntila

Keyword(s):

Feed Intake ◽

Performance Test ◽

Performance Testing ◽

Test Period ◽

Meat Production ◽

Body Measurements ◽

The Subject ◽

Selection For ◽

Linear Body ◽

Birth Type

Central performance testing of young rams has been conducted in Finland since 1975, in 1985—87 indoors as combined phenotype and 1/2-sib tests, which are the subject of this study. There were 100 individual boxes available, of which ca. 90 were annually used for Finnsheep (F). The rams were fed on concentrate diet (13.5 % DCP) ad lib. + hay. The test period was from 60 to 150 days of age. Feed intake (FI) was recorded daily, live weights (LW) fortnightly. At the end, MLD-areas were ultrasonically scanned, fleeces weighed, some linear body measurements taken, and fleshiness and wool quality scored. A total of 276 F rams were tested. They were progeny of 85 sires (2—4 half-brothers/sire). The means for all rams (30 selected rams) were: birth type 3.19 (3.18), rearing type 2.93 (3.01), age at start 64.3 (63.7) days, 60-day LW 19.5 (19.5) kg, 150-day LW 45.1 (47.6) kg, ADG 284 (312) g/d, FI 1.28 (1.34) kg/d, FE 4.49 (4.29) kg/kg gain, MLD-area 8.83 (9.63) cm2. There was considerable variation in the important traits (ADG, FI, FE, MLD-area), in spite of preselection. The phenotypic correlations of ADG with 150-d. LW, FI, Fl/kg gain and MLD-area were .61, .57, —.63 and .37, resp. (PC.001). Those of 150-d.LW with the last three traits were .59, —.15 NS and 0.44, resp.(P< .001). Selection for ADG, 150-d. LW, Fl/kg gain and MLD area in the performance test appeared to improve the value of offspring for meat production in F.

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Sire Effect on Reproductive and Growth Performance of Local and Exotic Sows In Rivers State, Nigeria

Journal of Biotechnology Research ◽

10.32861/jbr.71.12.17 ◽

2020 ◽

pp. 12-17

Author(s):

Ologbose F. I.

Keyword(s):

Body Weight ◽

Growth Performance ◽

Litter Size ◽

Gestation Length ◽

Body Measurements ◽

Large White ◽

Litter Weight ◽

Rivers State ◽

Dominant Genes ◽

Linear Body

The study was conducted to determine sire effect on reproductive and growth performance of local and exotic sows in Rivers State, Nigeria. The experiment involved three breeds of pigs (Local pigs (LP), Landrace (Lr) and Large White (Lw)). Eighteen breeding pigs consisting three local sires and fifteen gilts (local and exotic) were used to generate seventy two progenies for the experiment. Reproductive performance such as Gestation length (GL), Litter size at birth (LSAB), Litter weight at birth (LWAB), Litter size at weaning (LSAW) and Litter Weight at Weaning (LWAW) were taken from the three different crosses for comparison. Data on quantitative traits such as Body weight (BW), Body length (BL), Heart Girth (HG), Height at wither (HT) and Rear Girth (RG) were taken on seventy two progenies resulting from the three crosses. The results showed significant (P<0.05) difference of sire on GL, LSAB, LWAB, LSAW and LWAW. LP x Lw performed better than LP x Lr in all the reproductive performances considered while, LP x LP recorded the least. The result also revealed that there was significant (P<0.05) effect of sire on the growth performance (i.e body weight and linear body measurements) of the progenies produced from the different three crosses used for the study, where, progenies from LP x Lr recorded highest BW and linear body measurements than progenies from LP x Lw, while, progenies from LP x LP recorded the least at week 0 (birth), 6 (weaning) and 12. The improvement in crossbred could be attributed to dominant genes from the exotic sow.

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Genotype, gestation length, season, parity and sex effects on growth traits of two rabbit breeds and their crosses

Biotechnology in Animal Husbandry ◽

10.2298/bah1404717e ◽

2014 ◽

Vol 30 (4) ◽

pp. 717-729 ◽

Cited By ~ 1

Author(s):

S.S.A. Egena ◽

G.N. Akpa ◽

I.C. Alemede ◽

A. Aremu

Keyword(s):

Growth Traits ◽

Tail Length ◽

The Body ◽

Gestation Length ◽

Body Measurements ◽

Season Of Birth ◽

Trunk Length ◽

Body Dimensions ◽

Sex Effects ◽

Foundation Stock

One hundred and thirty rabbits were used to evaluate the effect of genotype, gestation length, season, parity and sex on growth traits of two breeds of rabbit and their crosses. The rabbit used for the experiment were breeds of the New Zealand White (NZW) and Chinchilla (CH) breed. Six breeding bucks (three/breed) and eighteen breeding does (nine/breed) served as the foundation stock. Traits measured include: body weight (BW), nose to shoulder length (NTS), shoulder to tail length (STL), heart girth (HG), trunk length (TL) and length of ear (LE). Results revealed that, BW of the rabbits were influenced (p<0.05) by genotype, gestation length and season. CH x (CH x NZW) progenies had better BW at 35-d and 49-d of age while NZW x CH progenies had better BW at 21-d of age. Kittens born late (32-34 days) had better BW at 21-d, 35-d and 49-d while kittens kindled during early dry season had better BW at 21-d, 35-d and 49-d. Genotype affected (p<0.05) all the body measurements at 21-d, 35-d and 49-d. Gestation length affected (p<0.05) all the body measurements except for NTS at 21-d and HG at 49-d respectively. Season of birth also influenced (p<0.05) all the body measurements except for LE 21-d. Parity and sex had no effect (p>0.05) on BW, NTS, STL, HG, TL and LE. It was concluded that genotype, gestation length and season influenced BW and body dimensions of the two breeds of rabbit and their crosses while parity and sex had no effect.

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Linear body measurements and carcass characteristics of goats.

Goat meat production and quality ◽

10.1079/9781845938499.0277 ◽

2011 ◽

pp. 277-291

Author(s):

I. T. Kadim ◽

O. Mahgoub

Keyword(s):

Carcass Characteristics ◽

Body Measurements ◽

Linear Body

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INFLUENCE OF BREED, BIRTH DATE, AGE AND BODY WEIGHT ON LINEAR BODY MEASUREMENTS OF GROWING RAMS MAINTAINED IN A CONTROLLED ENVIRONMENT

Canadian Journal of Animal Science ◽

10.4141/cjas84-034 ◽

1984 ◽

Vol 64 (2) ◽

pp. 279-291 ◽

Cited By ~ 6

Author(s):

J. N. B. SHRESTHA ◽

D. P. HEANEY ◽

P. S. FISER ◽

G. A. LANGFORD

Keyword(s):

Body Weight ◽

Key Words ◽

Litter Size ◽

Body Length ◽

Birth Date ◽

Controlled Environment ◽

Body Measurements ◽

Leg Length ◽

The Relationship ◽

Linear Body

Heart girth (HG), body length (BL), leg length (LL), metacarpal circumference (MC), withers height (WH) and hook width (HW) of 233 growing rams of three synthetic strains, Suffolk and Finnsheep breeds were measured at 6, 8 and 10 mo of age. Thereafter, subsequent measurements were taken at 11–13 mo, 18–21 mo and 23–25 mo of age. Breed, birth period (hysterectomy derived birth date), age of ram and body weight (BW) had important effects (P < 0.05) on linear body measurements, whereas age of dam did not (P > 0.05). Significant effects of litter size on HG and BL were observed at 6 and 8 mo of age, respectively. All linear body measurements increased from 6 to 21 mo of age, whereas BL, WH and HW continued to increase to 25 mo. Rams of Strain 1, developed as a synthetic sire strain, with a large proportion of Suffolk background were generally similar to the Suffolk rams in all body measurements except for HG which was significantly larger than in Suffolk rams. The Finnsheep rams had smaller HG, BL, MC and HW than the synthetic strains and Suffolk rams, whereas LL and WH of the Finnsheep and Suffolk rams were similar. Rams of Strains 2 and 3, developed as synthetic dam strains with 50 percent Finnsheep background, were similar in body measurements. The synthetic dam strains did not differ from Strain 1 and/or Suffolk with respect to HG, BL, WH and HW. However, Suffolk rams had larger MC and shorter LL compared to those of the Strain 2 and 3 rams. Birth period had a significant effect on HG, BL, LL and MC, but no consistent trend with age of ram was apparent. Linear body measurements were positively correlated with each other and with body weight; however, the relationship varied as rams progressed in age. The importance of breed, birth date, age of ram and body weight on body measurements and the requirements for appropriate adjustments is emphasized. Key words: Sheep, body measurements, breed, birth date, age of ram

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Reproductive Biology and Development of the Water Rat, Hydromys chrysogaster, in Captivity

Wildlife Research ◽

10.1071/wr9820039 ◽

1982 ◽

Vol 9 (1) ◽

pp. 39 ◽

Cited By ~ 2

Author(s):

PD Olsen

Keyword(s):

Breeding Season ◽

Developmental Stages ◽

Post Partum ◽

Growth Curves ◽

Gestation Length ◽

Body Measurements ◽

Sperm Production ◽

Crown Rump Length ◽

Rate Of Increase ◽

Hydromys Chrysogaster

In a captive colony of H. chrysogaster most litters were born between September and March, although some were born in every month except June. Most females had regular oestrous cycles in the breeding season but there were isolated instances of oestrus in every month. In mature males, testes were scrota1 and there was full sperm production all year. There was some regression in weight of male accessory reproductive glands in the autumn and winter. Oestrus lasted 10 days (range 7-17), and its stages: pro-oestrus 1 day, oestrus 2 days, metoestrus 2 days, anoestrus 5 days. Some instances of delayed implantation were suspected. Gestation length was 34 days (33-41). Parturition was followed the next day by a postpartum oestrus, lasting 1 day. Lactation anoestrus was at least 3 weeks. Litter size was 3.29 � 1.26 (1-7) and the number of litters per breeding season was 2.6 � 0.97 (1-5). In the latter half of pregnancy there was a linear relationship between the crown-rump length of foetuses and gestation length. Young were born naked, blind and with the pinnae folded forward with edges attached to the head. The upper incisors emerged at 4 days, the lower incisors at 6 days, the auditory meatus opened at about 10 days, the eyes opened at about 14 days, some solids were eaten and young were more independent at about 3 weeks of age, and they were weaned at about 29 days. Phases in the rate of increase in weight were associated with each of these developmental stages. Females were first capable of breeding at 124 days (433 g); most matured about 240 days in the season following that of their birth. The testes descended in males between 90 and 120 days (475 g) but full sperm production did not occur until about 130-140 days. Females could breed for three seasons (until about 3.5 y old). Placental scars were visible for up to 6 months, but had sometimes disappeared at 4 months post partum. Growth curves of tail and weight were sigmoid, and those of other body measurements were exponential, as in the Rattus group of Australian rodents, and differing from the pseudomyine rodents. Body measurements showed a sigmoid relationship to the linear equivalence of body weight. Developmental events occurred earlier, in relation to growth, in Hydromys and Rattus lutreolus than in Pseudomys novaehollandiae.

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